38
SOLID STATE : THEORY: 1) Give characteristics of solid. 2) Give the classication of solid state. 3) Explain crystalline solid and amorphous solid. 4) What is a glass !istinguish "et#een crystalline solid and amorphous aolid. Give examples. $) Explain% i) &olecular solid ii) 'ydrogen "onded molecular solid iii) (onic solid iv) &etallic solid v) ovalent solid vi) oordination num"er *) Write a note on i) diamond ii) graphite iii) fullere ne +) lassify the follo#ing solids into di,erent types i) -lastic ii) -4 molecule iii) / molecule iv) (odine molecule v)  0 etra phosphorus decoxide vi) mmonium phosphate vii) rass viii) u"idium ix) Graphite x) !iamond xi) al xii) ilicon /) What is a unit cell Explain ravais lattice. 5) Explain #ith the help of diagram

Chemistry Question 12sci (1)

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8112019 Chemistry Question 12sci (1)

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SOLID STATE

THEORY

1) Give characteristics of solid

2) Give the classication of solid state

3) Explain crystalline solid and amorphous solid

4) What is a glass istinguish eteen crystalline solid and

amorphous aolid Give examples

$) Explain

i) ampolecular solid

ii) ydrogen onded molecular solid

iii) (onic solid

iv) ampetallic solid

v) ovalent solid

vi) oordination numer

) Write a note on

i) diamond ii) graphite iii) fullerene

+) lassify the folloing solids into dierent types

i) -lastic ii) -4 molecule iii) molecule iv) (odine molecule v)

0etra phosphorus decoxide vi) mmonium phosphate vii) rassviii) uidium ix) Graphite x) iamond xi) al xii) ilicon

) What is a unit cell Explain ravais lattice

5) Explain ith the help of diagram

8112019 Chemistry Question 12sci (1)

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i) even types of unit cell

ii) 0hree types of cuic cell

iii) 0o types of tetragonal unit cell

iv) 6our types of orthorhomic unit cell

v) 0o types of monoclinic unit cell

vi) 0riclinic unit cell

vii) -rimitive hexagonal unit cell

17) istinguish eteen the folloing

i) rystalline lattice and unit cell

ii) exagonal close pac8ing and cuic close pac8ing

iii)0etrahedral void and octahedral void

11) Give the numer of lattice points in one unit cell of crystal

structure

i) imple cuic ii) 6ace centered cuic iii) ody centered cuic

iv) 6ace centered tetragonal

12)Explain hy

i) (onic solids are hard and rittle

ii) olid ice is lighter than ater

iii) alculate the percentage e9ciency of pac8ing in case of

folloing crystal

a) imple cuic ) ody centered cuic c) 6ace centered cuic

ith all atoms touching one another

13) Explain ith the help of neat diagram and and

type of three dimensional pac8ing

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14) Explain the pac8ing and voids in ionic solids

1$) Write note on radius ratio rule for ionic compounds

1) Explain ho to deduce coordination numer of cations

1+) What are point defects

1) Explain interstitial defect and impurity defect

15) Explain the origin of electrical properties in solids

27) What are semiconductors escrie the to main types of

semiconductors

21) Explain the origin of magnetic properties in solids22) Explain

() iamagnetism ii) -aramagnetism iii) ferromagnetism

23) lassify the folloing semiconductors into n or p type

i) doped ith i

ii) s doped ith i

iii) - doped ith i

iv) Ge doped ith (n

24) Explain and theory

2$) istinguish eteen conductorslt semiconductors and

insulators

2) Explain the termsi) chott8y defect iii) 6ren8el defect

PROBLEMS

8112019 Chemistry Question 12sci (1)

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() ioium is found to crystalli=es ith cc structure and found to

have density of $$ggtcm3 etermine the atomic radius of

nioium if its atomic mass is 532) opper crystalli=es into 6 structure and the unit cell has

length of edge 31 17 cm alculate the density of copper if

the molar mass of u is 3$ggtmol

3) ilver crystalli=es in 6 structure ith edge length of unit celllt

47+ 17 cm and if density of metallic silver is17$ggtcm3

alculate the molecular mass of silver

4) etermine the density of cesium chloride hich crystalli=es in type of structure ith the edge length 4121pm 0he atomic

masses of cesium and chloride are 133 and 3$$ respectively

$) nit cell of iron crystal has edge length of 2pm and density

of +ggtcm3etermine the type of crystal lattice 6eA$)

) n atom crystalli=es in 6 crystal lattice and a density of

17ggtcm3 ith unit cell edge length of 177pm alculate numer of

atoms present in 1g of crystal

+) n element and constitute type crystalline structure

Element occupies ody center position and is at the corners of

cue What is the formula of the compound What are the

coordination numers of and

) toms and form 6 crystalline structure tom is

present at the corners of the cue and atom is at the faces of

the cue What is the formula of the compound

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SOLUTION AND COLLIGATIVE PROPERTY

THEORY

1) ene the terms solutionlt solutelt solvent and concentration

2) What are the dierent types of solution

3) Explain dierent ays in hich concentration of a solution can

e expressed

4)ene i) percentage y eightlt ii) mole fractionlt iii) ampolalitylt iv)

ampolarity

$)ene the term colligative property Give examples

) tate and explain enryBs la

+) Explain solid solution

) What is a vapour pressure of liCuid

5) Explain the eect of temperature on the vapour pressure of

liCuid

17) What are the factors hich aects vapour pressure

11) What is loering of vapour pressure of a solution

12) What is relative loering of vapour pressure

8112019 Chemistry Question 12sci (1)

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13) tate aoultBs la and otain expression for loering of

vapour pressure hen nonvolatile solute is dissolved

14) erive the relationship eteen relative loering of vapour

pressure and molar mass of solute1$) What is oiling point of liCuid

1) What is elevation of oiling point

1+) What is molal elevation constant oes it depend on the

nature of the solute

1) erive the relation eteen elevation of oiling point and

molar mass of the solute15) ene free=ing point of liCuid

27) What causes depression in free=ing point

21) ene molal depression constant

22) o molar mass of a nonvolatile solute is related to the

depression in free=ing point erive an eCuation

23) What is osmosis

24) ene semipermeale memrane and osmotic pressure

2$) ene the terms i) (sotonic solution ii) ypertonic solution

iii) ypotonic solution

2) tate i) vant ooyles la ii) vant oharles la

2+) erive vant o eCuation for osmotic pressure of a solution

2) o molar mass of a solute is determined from osmotic

pressure measurements

25) Explain anormal osmotic pressure

37) tate vant ovogadroBs la

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31) Explain

i) normal molecular masses

ii) vant o factor

32) erive the eCuations

i) A

ii) A

PROBLEMS

1) 342g of glucose is dissolved in 477g of ater alculate

percentage y mass of glucose solution

2) solution is prepared y dissolving certain amount of solute in

$77g of ater 0he percentage y mass of a solute in solution is

23 alculate mass of solute

3)4cm3 of methyl alcohol is dissolved in 2$2g of ater

alculatelt i) percentage y mass of methyl alcohol ii) ampole

fraction of methyl alcohol and ater Given density of methyl

alcohol A 7+5$2ggtcm3 and A12lt A1 and DA1)

4) 12cm3 of en=ene is dissolved in 1cm3 of xylene alculate

y volume of en=ene

$) alculate mole fraction of l in solution of l containing

24 of l y massA1lt lA3$$)

) alculate mole fraction of solute in its 2 molal aCueous

solution

8112019 Chemistry Question 12sci (1)

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+) alculate the mole fractionlt molality and molarity of D3 in a

solution containing 122 D3 Given density of

D3A173ggtcm3lt A1lt A14lt DA1

) ulphuric acid is 5$ y mass alculate mole fraction andmolarity of 2D4 of density 151ggtcm3

5) Cueous solution of aD is mar8ed 17gt) 0he density of

the solution is 17+7ggtcm3

alculatelt

i) molarity ii) molality and iii) mole fraction of aD and ater

aA23lt A1 and DA1

17) attery acid is 422amp aCueous 2D4 solutionlt and has density

of 121ggtcm3 What is the molality of 2D4 A1lt A32lt DA1

11) 0he vapour pressure of 21 solution of a nonelectrolyte in

ater at 177 is +$$mm g alculate the molar mass of the

solute

12) 0he vapour pressure of ater at 27 is 1+mm g alculate

the vapour pressure of a solution containing 2g of

urea2D2) in $7g of ater A14lt A12lt A1

13) (n an experimentlt 174g of mannitol ere dissolved in 177g

of ater 0he vapour pressure of ater as loered y 7375mm

g from 1+$3$mm g alculate the molar mass of mannitol

14) solution containing 7$12g of naphthalene molar mass A

121+ggtmol) in $7g of l4 gives a oiling point elevation of

7472F While a solution of 721g of un8non solute in the

same mass of the solvent gives a oiling point elevation of 74+F

6ind the molar mass of the un8non solute

F for l4A $73F 8g mol1 of solvent)

8112019 Chemistry Question 12sci (1)

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1$) alculate the mass in grams of an impurity of molar mass

177gmol1 hich ould e reCuired to raise the oiling point of

$7g of chloroform y737F

F for chloroformA 33F 8g mol

1

)1) oiling point of a solvent is 72 When 7415g of the solute

of molar mass 2$24g mol1 as dissolved in +$g of the solventlt

the oiling point of the solution as found to e 72$ 6ind

the molal elevation constant

1+) 7ml of glacial acetic acid ith density 17gm 1 is

dissolved in 18g ater and the solution fro=e at 7727$

alculate vant o factor and F f for ater is1F 8g mol1

1) enryBs la constant for soluility of methane in en=ene is

42+ 17$mm g at constant temperature alculate the

soluility of methane at +7mm g pressure at same

temperature

CHEMICAL THERMODYNAMICS AND ENERGIES

Theory

1)ene the terms systemlt surroundinglt open systemlt close

systemlt isolated systemlt exothermic reactionslt endothermic

reactionslt extensive properties and intensive properties

2) Explain the term state function Give to examples of state

functions and to example of path function

3) Explain thermodynamics eCuilirium

4) istinguish eteen isothermal and adiaatic process

$) What is a reversile process What are its features

) ho that pressure times volume is eCual to or8

8112019 Chemistry Question 12sci (1)

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+) erive the expression for or8 hen a gas expands against

constant external pressure

) lassify the folloing reactions according to or8 done y the

systemlt on the system and no or8 done if pressure is constanta) 2g) H l2g) 2lg)

) 3D2g) 2D3g)

c) 2D2g) D2g)H 2D3g)

d) ampgD3s) H ampgDs) D2g)

e) 4D3s) H 2Dg) 22Dg)

5) What is the dierence dierence eteen and What is

the sign of for exothermic and endothermic reactions nder

hat circumstances

17) What are the sign convention for C and W

11) Explain the concept of maximum or8

12) free expansion of a gas results into no or8 Explain

13) erive the expression for maximum or8

14) ene enthalpy t constant pressure sho that A

1$) (t is di9cult to calculate lt hoever can e easily

determined Why Explain giving examples

1) tate rst la of thermodynamics Iustify its mathematical

eCuation

1+) Dtain the relationship eteen and for a chemical

reaction

1) What is the expression for or8 done in a chemical reaction

Explain the meaning of each term

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8112019 Chemistry Question 12sci (1)

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a) dissolution of sugar in hot coee

) separation of r and Fr from their mixture

c) spreading of fragrance hen a ottle of perfume is opened

d) Jo of heat from cold oKect to hot oKect

e) heat transfer from ice to room at 2$

37) ene entropy Give its units What does entropy measures

31)Explain ho entropy changes in the folloing processes

a) free=ing of liCuid

) sulimation of solid

c) dissolving of ater in sugar

d) condensation of vapour

32) Which memer of the folloing pairs have larger entropy

Why

a) D2s) or D2g)

) 3Dl) or 2$D2$l)

c) Dg) or 2D4g)

d) eg) or Frg)

e) as) or als)

33) Why is it more convenience to predict spontaneity of reaction

in terms of Gsys rather than total34) ene Gis energy and change in Gis energy What are

the units of Gis energy

3$) tate second la of thermodynamics in terms of entropy and

express it mathematically

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3) tate third la of thermodynamics What is its usefulness

3+) Why is it impossile for any sustance to have an asolute

entropy =ero at temperature greater than 7F

3) (t is impossile for a reaction to e spontaneous yetexothermic Explain ith example

35) (s it possile for a reaction to e nonspontaneous yet

exothermic Explain ith example

47) -redict the sign of in the folloing process Give reasons

for your anser

a) 2D4g) 2D2g)) 6e2D3s) H 32g) 26es) H 32Dg)

c) 2g) H 32g) 23g)

d) ampgD3s) 23g)

e) D2g) D2s)

f) l2g) 2lg)

41) What can e said aout the spontaneity of reactions hen

a) and are oth positive

) and oth are negative

c) is positive and is negative

d) is negative and is positive

42) (dentify hich memer of the folloing pairs has largerentropy Why

a) eg) in a volume of 1 or eg) in a volume of $ oth at 2$

) D2g) at 1atm or D2g) at 17atm oth at the same temperature

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c) 2$Dl) or 2$Dg)

d) $ moles of e or 2 moles of e

43) What are the signs of for the folloing reaction

Explain ith reasons

2g) 2g)

44) erive the relationship eteen G and total

4$) Iustify the inclusion of Crev and 0 in the denition of entropylt

A Crevgt 0

4) 0he increase in entropy of a system alone does not guarantee

the spontaneity of a process Explain

4+) 0he criterion of spontaneity in terms of Gis energy is the

same as that laid don y second la of thermodynamic o

PROBLEMS

1) 0hree moles of an ideal gas are expanded isothermally from a

volume of 377cm3 to 2$ at 377F against a pressure of 15atm

alculate the or8 done in atm and Koules2) Dne mole of an ideal gas is compressed from $77cm3 against a

constant pressure of 121 17$-a 0he or8 involved in the

process is 3$7I alculate the nal volume

3) alculate the maximum or8 hen 24g of oxygen are

expanded isothermally and reversily from a pressure of 1

17$-a to 1778-a at 25F

4) 0hree moles of an ideal gas are compressed isothermally andreversily to a volume of 2 0he or8 done is 2538I at 22

alculate the initial volume of a gas

8112019 Chemistry Question 12sci (1)

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$) 2 172 8g of nitrogen is expanded isothermally and

reversily at 377F from 1$1$ 17$ m 2 hen the or8 done is

found to e 1+338 I 6ind the nal pressure

) sample of a gas asors 47778I of heata) if volume remains constantlt hat is

) uppose that in addition to asorption of heat y the samplelt

the surrounding does 27778I of or8 on the samplelt hat is

c) uppose that as the original sample asors heatlt it expands

against atmospheric pressure and does 778 I of or8 on its

surroundings What is

+) alculate the or8 done in each of the folloing reactions

tate hether or8 is done on or y the system

a) 0he oxidation of one mole of D2 at $7

2D2g) H D2g) 2D3g)

) decomposition of 2 moles of 4D3 at 177

4D3s) 2Dg) H 22Dg)

) 0he enthalpy change for the reaction

24g) H 2g) 2g) is 27I hen 177m of ethylene and

177m of 2 react at 1atm pressure alculate the pressure

volume or8 and

5) alculate standard enthalpy of the reaction

6e2D3s) H 3Dg) 26es) H 3D2g) from the folloing data

f 76e2D3)A2428Imol1ltf 7D)A117$8Imol1lt

f 7D2)A353$8Imol1

8112019 Chemistry Question 12sci (1)

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8112019 Chemistry Question 12sci (1)

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Electro chemitry

Theory

1ene the terms resistivitylt conductivity and molar

conductivity Give its ( units

2Explain the terms conductivity and molar conductivity o are

they interrelated

3Why does conductivity of s solution decrease on dilution of a

solution

4o does molar conductivity of an electrolyte vary ith

concentration

$o does the variation in molar conductivity of an electrolyte

ith concentration diers for strong and ea8 electrolytes

Explain the dierent ehaviour of strong and ea8 electrolytes

toards the variation of conductivity ith concentration

+tate and explain Fohlrausch la of independent migration of

ions o it is useful to determine the molar conductivity of ea8

electrolytes at =ero concentration

o is the molar conductivity of strong electrolytes at =ero

concentration determined y graphical method Why is this

method not useful for ea8 electrolytes

5What is cell constant What is its unit o is it determined

17ene anode and cathode

11 Why is cathode in electrolytic cell considered to e negative

and anode positive

12 -redict the half cell reactions that occur hen fused Fl is

electroly=ed in a cell ith inert electrodes What is the overall cell

reaction

8112019 Chemistry Question 12sci (1)

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13 tate 6aradayBs las of electrolysis

14o ill you calculate the numer of moles of electrons

actually passed and mass of the sustance produced during

electrolysis of a salt solution using reaction stoichiometry1$o many electrons ill have a total charge of 1 coulom

1 o many faradayBs ould e reCuired to plate out 177 mole

of free metal from the folloing cations

a) ampg2H

) r3H

c) -2H

d) uH

1+ ene coulom and faraday

1 escrie the electrolysis of molten al using inert

electrodes

15 What is the dierence eteen electrolytic cell and voltaic

cell

27 Why is anode in galvanic cell considered to e negative and

cathode positive electrode

21 8etch the cell for the electrolysis of molten al (ndicate

cathodelt anode and their signs ho the Jo of electrons and

ions

22 What is salt ridge What are its functions in galvanic cell

23 What are the conventions used to rite cell diagramcell

formula)

24 escrie the construction of aniel cell Write electrode half

reactions and net cell reaction in aniel cell

8112019 Chemistry Question 12sci (1)

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2$ escrie the folloing types of electrodes giving one

examplelt ith reference to formulationlt electrode reaction and

ernst eCuation for electrode potential

a) metalsparingly salt electrode) gas electrode

2 What is redox electrode Give one example ith formulationlt

electrode reaction and ernst eCuation for electrode potential

2+ ene the terms oxidation potentiallt reduction potential and

cell potential

2 What conditions are reCuired for a cell potential to e calledstandard cell potential

25 6ormulate a cell for each of the folloing electrode reactions

a) n2H aC) H 2gl s) L n4H aC) H 2gs) H2l aC)

) ampg s) H r2l) L ampg2H aC) H 2r aC)

37 6ormulate a cell from the folloing electrode reactions

a) l2g) H 2e L 2l aC)

) 2( aC) L (2s) H 2e

31 What are standard electrode potential and standard emf of

the galvanic cell

32 Write ernst eCuation and explain the terms involved in it

What part of the eCuation represents the correction factor for

nonstandard state conditions

33 Write ernst eCuation for the folloing reactions

a) rs) H 36e3H aC) L r3H aC) H 36e2H aC)

) l3H aC) H 3e L l s)

8112019 Chemistry Question 12sci (1)

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34 onsider the folloing E7 values and half reactions

(2s) H 2e L 2( aC) E7A7$3$M

u2H aC) H 2e L u s) E7A733+M

d2H aC) H 2e L ds) E7A77473

a) Which of the metals or nonmetals or ions is the strongest

oxidi=ing agent and hich is the strongest reducing agent

) 0he half reactions can e used to construct three galvanic

cells Which ill have the highest cell potential

3$ -redict hether

a) gH can oxidi=e - to -2H under standard state condition

) E7gA7+55M and E7

-A712M

3 -redict hether the folloing reactions occur under standard

state conditions

a) Dxidation of gs) y l2g) E7gA7Mlt E7

l2A13M

) eduction of 6e

3H

to 6e

2H

y us) E

7

6e3Hlt 6e2H A 7++MltE7uA14M

3+ 8etch and descrie the operation of

a) dry cell

) 2D2 fuel cell

3 What are the advantages and disadvantages of fuel cells

35 8etch lead storage cell

47 Write electrode reaction and overall cell reaction during the

operation of lead storage cell

41 Write electrode reaction and overall cell reaction hen lead

accumulator ehaves as an electrolytic cell

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42 o can ernst eCuation e used to sho that electrode

potential is eCual to the standard electrode potential y putting

approximate values in ernst eCuation se u2HNd half cell for

illustration

43 o are G7lt E7cell and eCuilirium constant related for a

particular reaction

44 Why is eCuilirium constant related to E7cell and not Ecell

4$ G7 for a redox reaction depends on the numer of electrons

transferred Explain

4 o does the eCuiliriumlt G7An6E7 explain that an

electrical potential is an intensive property

4+ Write shorthand notation for the cell for each of the folloing

reactions

a) u2H aC) H 2gs) H 2r L u s) H 2gr s)

) n2H aC) is oxidi=ed y r2 l)

4 rrange the folloing reducing agents in order of increasing

strength under standard state conditions 0he standard potentialsfor the reduction half reactions are given

gH aC) 7M)lt l3H aC) 1M)lt 62g) 2+M)lt l2g) 13M)lt

(2s) 7$4M)lt d2H aC) 74M)

45 rrange the folloing oxidi=ing agents in order of increasing

strength under standard state conditions 0he standard potentials

for the reduction half reactions are given

ls) 1M)lt l aC) 13M)lt us) 734M)lt 6es)744M)lt r

aC) 175M)lt is) 72M)

$7 Which species in each of the folloing pairs is etter oxidi=ing

agent under standard state conditions standard potential are

given) Give reasons for your anser

8112019 Chemistry Question 12sci (1)

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a) r2l) 175M) or u3H 14M)

) H aC) or gH aC) 7M)

c) -2H aC) 713M) or o2H 72M)

d) l2 g) 13M) or r3H 7+4M)

$1 Which species in each of the folloing pairs is etter reducing

agent under standard conditions E7 values are given Give

reasons for your anser

a) Fs) 2353M) or ampgs) 23M)

) o2H aC) 11M) or (n s) 714M)

c) e3H aC) 11M) or 0i2H73+M)

d) gl) 7M) or is) 723M)

PROBLEMS

1 conductivity cell lled ith 771amp Fl given at 2$o the

resistance of 74ohms 0he conductivity of Fl at 2$

o

is 7777

CHEMISTRY

d f O DF EEampE0

1) What are dloc8 elements

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2) What are floc8 elements

3) Explain the meaning of

i) 0ransition series ii) (nner transition element

4) Explain the position of the folloing in periodic tale

i) dloc8 elements ii) anthanoids iii) ctinoids

$) Explain the oxidation state of 1st ro elements of transition

series

) Explain the oxidation states of lanthanoids and actinoids

+) Why do lanthanoids form coloured compounds ) Explainlt most of the transition metal compounds are

remar8aly coloured

5) Why chromium has electronic conguration 3d$ 4s1 and not 3d4

4s2

17) Why does copper sho anormal electronic conguration

11) Explainlt the trends in atomic and ionic si=es of lanthanoidsand also of 1st ro elements of transition series

12) What are actinoids

13) What are transuranic elements Write their name

14) Why transition elements sho tendency to form large numer

of complexes

1$) Explain the compounds of copper ((() are coloured ut thoseof =inc are colourless

1) o is potassium dichromate prepared from chrome ion

1+) Write the preparationlt properties and use of potassium

permanganate

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1) Explainlt hy -t(M) complexes are generally octahedral hile

-t(() complexes are sCuare planar

15) ierentiate eteen lanthanoids and actinoids

27) What are chemical tins Give examples

21) Explain hy Gd3H is colourless

COORDINATION COMPOUNDS

1) What is the dierence eteen doule salt and coordinationcompounds

2) Explainlt hy 6e4)2 D4)22D) is a salt ut F 4P6e)Q is a

complex compound

3) Write the formula of the folloing complexes

i) alcium hexa cyano ferrate (()

ii) iammine dichloro platinum

iii) is ethylene diammine) dichloro iridium ((() ion

iv) -entamine caronato chromium ((() D(E

v) 0risethylene diammine ) coalt((() sulphate

vi) iamine ethylene diammine nic8el (() acetate

4) Write the rules hich are applied hile riting the formulas of

coordination compounds

$) ene the terms

i) entral metal atomgtion

ii) igand

8112019 Chemistry Question 12sci (1)

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iii) oordination compound

iv) oordination sphere

v) oordination numer

vi) oordination polyhedral

vii) omoleptic and heteroleptic complexes

viii) harge on the complexes

ix) oordination entity

) Write (- name of the folloing complexes

i) Pr2D)4 l2QD3

ii) P-ten)l4Q

iii) F 2Pi)4Q

iv) sP6el4Q

v) rl3-y)3

vi) F 3Po2D4)3Q

vii) Por2en)2Q

viii) P-tl4Q2

ix) Po2D))en)2Q2H

x) F 3Pl2D4)3Q

+) Explain the importance of principles of additive nomenclature

) (dentify the folloing ions y a simple test forming complex

compound

i) u2H ii) i2H iii) 6e3H iv) o2H

8112019 Chemistry Question 12sci (1)

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5) Dn the asis of WernerBs theory explainlt hy coalt amine

complexlt ol343 hen treated ith gD3 solution

precipitates only one ion even though there are three ions

17) alculate the eective atomic numer E) of the centralmetal atom in the folloing compounds

i) F 3P6e)Q ii) rD)

11) Write the postulates of WernerBs theory

12) Explain the onding in ol333 and ol3$3

13) Explain stereoisomerism in metal complexes ith coordination

numer 4 and 14) Why the tetrahedral complexes do not exhiit geometrical

isomerism

1$) ra cis and trans geometrical isomers of

i) dichlororomo iodo palladium (() ion

ii) P-t(()3)2l2Q

iii) Po((()3)l3Q

iv) Po((()3)42D)lQ2H

1) ra all possile geometrical isomers of P-t(M)

3)2-y)2l2Q2H ion

1+) Write oxidation statelt coordination numer and electronic

conguration of the metal atom in the folloing complexes

i) rl3-y)3 ii) F 4Pampn)Q

1) lassify the folloing ligands into monodentatelt polydentate

and amidentate

i) 3 ii) iii) iv) v) D2 vi) ethylene diammine

vii) oxalate

8112019 Chemistry Question 12sci (1)

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viii) triaminotriethylamine

15) ol3$32D is a pin8 solidlt the solution of this salt is also

pin8 and formed 3mol of gl ith silver nitrate solution Dn

heating pin8 solidlt it loses one ater molecule and forms purplesolid having same ratio of o3l as that of pin8 solid 0he

purple solid hen dissolved in ater and treated ith forms 1 mol

of gl ra the structure and name of the pin8 and purple

solids

27) ame the octahedral complex ions

i) Po2D4) en)2QH ii) transPr)4 3)2Q

21) ra the structures of the folloing complexes

i) Pol4Q2 ii) Pampn3)Q2H iii) P-tlQ iv) iD)4 v) Pi)4Q2

22) (n an octahedral crystal eldlt dra the gure to sho splitting

of dorital

23) What are ea8 eld and strong eld ligands What is spectro

chemical series

24) Pi)4Q2 is diamagnetic hile Pr3)Q3H is paramagnetltexplain

2$) Dn the asis of valence ond theory explain the nature of

onding in the folloing complexes

i) Po6Q3 ii) Po2D4)3Q3

2) lue coloured copper sulphate solution gave folloing

experimental results Explain the same

i) With aCueous potassium chloride it gave right green solution

ii) With aCueous potassium Juoride it gave a green precipitate

2+) ra the structures of optically active isomers of Poen)3Q3H

8112019 Chemistry Question 12sci (1)

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2) ra the geometrical and optical isomers of

i) Pol2en)2QH ii) Polen)23)Q2H

25) What is lin8age isomerism Explain ith an example

37) What are hydrate isomers Explain ith examples

31) Explain the structure of

i) upraammonium sulphate ii) Po3)Q3H

32) What are the limitations of valence ond theory

33) Explain the magnetic properties of coordination compounds

34) Write the salient features of crystal eld theory What are itslimitations

3$) Explain the octahedral geometry of complexes using crystal

eld theory

3) Write a note on colours in coordination compounds

3+) Explain the factors aecting the staility of coordination

compound3) Write rief the applications of coordination compounds

HALOGEN DERIVATIVES O ALANES AND ARENES

1) What are al8yl halides o are they classied

2) Write (- names of the folloing compounds

i)

ii) 2Al

8112019 Chemistry Question 12sci (1)

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iii)

iv)

v)

vi) secutyl chloride

vii) neopentyl romide

viii) tutyl iodide

ix) isopropyl romide

3) o is ethyl romide prepared from

i) Ethyl alcohol ii) ethane iii) ethane

4)Write the preparation of isopropyl chloride using the folloing

reagents

i) -l3 ii) -l$ iii) l2 iv) l v) Dl2

$) o is group replaced y folloing functional rroups

i) OD ii) O iii) O iv) O2

) Write a note on

i) andmeyerBs reaction ii) Wurt= reaction iii) 6in8elstein reaction

iv) 6ittig reaction v) 6riedel raft reaction

+) (dentify and in the folloing

8112019 Chemistry Question 12sci (1)

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) Give the structures of the folloing compounds

i) 3romo2methyl pentane ii) 2romo3ethyl hexane iii) 1

holo utane

iv) pichloroen=ene v) 1lt1lt10richloroethane

5) student has performed an experiment in the laoratory e

mixed ater ith hexane and found to layers separated econd

time he mixed chloroform ith ater and he again found to

layers in the test tue Explain hich ill e upper layer and

hich one ill e loer layer in oth the experiments

17) onvert 1hloroutane into the folloing compounds

i) utane1ol ii) 1(odoutane iii) 3222 iv)

11) 6or each pair of compoundslt state hich compound is etter

2 sustrate

i) 2romoutanelt isopropyl romide ii) 1(odo2lt2dimethyl

propane or isopropyl iodide

12) hoose the memer that ill react faster from the folloing

pairs y 1 mechanism

13) -redict the expected product of sustitution reaction

i) isoutyl chloride mH sodium ethoxide

ii) nutyl chloride H sodium

iii) 1hloro propane H aC potassium hydroxide

iv) aniline H aD2gt l

14) Write the products

i) $22A2 H r L

ii) $A2 H r

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iii)

iv)

v)

1$) (dentify the chiral and achiral molecules

i)

ii)

iii)

1) iscuss 2 mechanism of methyl romide using aCueous

FD ra energy prole diagram1+) Write the mechanism of the reaction hen tutyl chloride is

treated ith aCueous FD ith energy prole diagram

1) ierentiate eteen 1 and 2 mechanism

15) Explain the nature of ond in

i) 322 ii)

27) What are uses of

i) 0 ii) (odoform iii) hloroform iv) aron tetrachloride

21) l8yl halides are polar and miscile ith aterlt explain

22) Which one of the folloing is more easily hydrolysed y

aCueous FD

$l$ and $2l

23) rrange the folloing groups in descending order 2lt D3lt

D3lt DD and l

24) ssign or conguration to each of the folloing

structures

8112019 Chemistry Question 12sci (1)

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i)

ii)

iii)

iv)

DDlt -ED E0E

1) What are alcohols o are they classied

2) What are monohydric alcohols o are they classied

4) Write the structures of folloing alcohols

i) 1Ethylcyclohexanol ii) ex3en2ol iii)yclohex2en1ol

iv) -entane1lt4diol

v) 2lt4imethylhexane1lt3lt$triol

$) Explain the folloing

i) -ropan1ol has higher oiling point than nutane

ii) ampethanol is more solule in ater than -ropan1ol

) Write the mechanism of hydration of ethylene to ethyl alcohol

+) -ropan1ol can not e prepared y acid catalyst hydration of

propenelt then ho is propene converted into propan1ol

)5) o is propanone converted into

i) -ropan2ol ii) 2ampethyl propan2ol

17) o ill you otain utan2ol from

8112019 Chemistry Question 12sci (1)

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i) -ropanal ii) utan2one iii) ut2ene

11) o is propan1ol prepared from

i) -ropanal ii) -ropanoic acid

12) o is cyclopentanol prepared from

i) yclopentanone ii) yclopentene

14) Write the mechanism of acid catalysed dehydration of ethanol

to give ethane

1$) Write the structure of aldehyde lt caroxylic acid and ester

that yield folloing alcohol

1+) o ill you prepare

i) 2ampethylutane1ol from an al8ene

ii) cyclohexylmethanol from a Grignard reagent

iii) 1phenylethanol from acetaldehyde

1) o are folloing conversions rought aout

i) en=yl chloride to en=yl alcohol

ii) en=yl alcohol to en=oic acid

iii) 1Ethylcyclohexanol from yclohexanone

15) What are phenols o are they classied

27)21) Give the structures and (- names of isomeric phenols

represented y the molecular formula 17D

22) o is phenol prepared from

8112019 Chemistry Question 12sci (1)

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i) hloroen=ene ii) (sopropyl en=ene iii) en=ene sulphonic

acid iv) aniline

23 ) Explain the folloing

i) -henol is more acidic than phenol

ii) onitrophenol is more acidic than ocresol

iii) pnitrophenol is less volatile than onitrophenol

24) Explain the folloing reactions of phenol

i) FoleBs reaction ii) iemer0iemann reaction

2$) ame the reagents used to convert phenol intoi) picric acid ii) 2lt4lt0riromophenol iii) en=ene iv) ophenol

sulphonic acid

2) What is the action of folloing reagents on phenol i)

romine in 2 at lo temperature

ii) ilute nitric acid at room temperature iii) oncentrated

sulphuric acid at room temperature

2+) Give distinguish test eteen phenol and ethanol

2) What are ethers o are ethers classied

25) What is metamerism Give the structure and (- name of

metamers of 2ampethoxypropane

37) Write the mechanism for acidic dehydration of ethanol

31) o is diethyl ether prepared y continuous ethericationprocess Why is the process so called

32) o ill you prepared methoxyethane from

i) l8yl halide ii) ia=omethane

33) tate the important uses of i) -henol ii) diethyl ether

8112019 Chemistry Question 12sci (1)

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34) Write the mechanism of action of hydrogen romide on tert

utyl methyl ether

3$) Explain the folloing reactions of anisole

i) romination ii) itration iii) 6riedelrafts al8ylation iv)6riedelrafts acylation

3) Explainlt i) 0he OD group attached to aromatic ring in

phenols and ii) 0he al8oxy group in al8yl aryl ethers are ortholt

para directing and activate the aromatic ring toars electrophilic

sustitution

3+) Write the chemical eCuations for Williamson synthesis of 2

Ethoxy2methypentane starting from ethanol and 2ampethylpentan2ol

3) n organic compound ith the formula 417D3 shos

properties of ether and alcohol hen treated ith an excess of

r yields only one compound 1lt2 diromomethane Write

structural formula of ether and that of alcohol

ALDEHYDES ETONES AND CABO$YLIC

ACID

1) Write the structure and give (- names of the folloing

compounds

i) chloropropionaldehyde

ii) Rhydroxyutyraldehyde

iii) isoutyraldehyde

iv) Rmethylvaleraldehyde

8112019 Chemistry Question 12sci (1)

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v) isopropyl methyl 8etone

vi) diisopropyl 8etone

vii) mromoen=aldehyde

viii) dien=yl 8etone

ix) divinyl 8etone

x) allyl methyl 8etone

xi) ethyl phenyl 8etone

xii) nutyrophenone

2) Write the structure of folloing compounds

i) 4ampethyl3nitroen=ophenone ii) 2ampethyl4oxopentanal iii)

3Dxopentanoic acid iv) 4chloropropiophenone v) 3

ampethoxyutanal vi) 4ydroxycyclohaxane caraldehyde

3) o ill you prepare i) propiophenone from propanenitrile ii)

4chloroen=aldehyde from 4chlorotoluene iii)

yclohaxanecaraldehyde from cyclohexylmethanol iv) 4

methoxyacetophenone from anisole v) 4methylen=aldehydefrom toluene

4) rrange the folloing compounds in the increasing order of

their oiling points

i) dimethyl etherlt ethyl alcohollt propanelt acetaldehyde

ii) acetonelt npropyl alcohollt ethyl methyl alcohol and nutane

$) What is the action of hydrogen cyanide in asic medium on i)utanone ii) 2lt4dichloroen=aldehyde

) What is the action of folloing compounds on cyclohexanone in

presence of dry hydrogen chloride

i) ethyl alcohol ii) ethylene glycol

8112019 Chemistry Question 12sci (1)

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+) Write the structure of product in the folloing reactions

i) 322D3

ii) $2D3

) Write the structures of caronyl compounds and ammonia

derivatives that comine to give folloing imines

i)

ii)

iii)

iv)v)

vi)

5) Write the chemical eCuations for aldol condensation or

anni==aro reaction that folloing compounds undergo

i) -ropanal ii) 2ampethylpropanal iii) -entanal iv) 3

ampethylutanal v) cetophenonevi) pampethoxyen=aldehyde vii) 2ampethylcyclohaxanone viii)

chloral ix) yclopentanone

x) -henyl acetaldehyde xi) 1-henylpropan1one

17) Write the structure of the maKor product of the folloing

crossed aldol condensation

i) formaldehyde and propionaldehydeii) en=aldehyde ith acetone

11) (dentify the compounds SBlt SB and SB in the folloing

reactions and rerite the complete eCuations

i)

8112019 Chemistry Question 12sci (1)

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ii)

12)o ill you eect folloing tostep conversions

i) -ropanal into utanone ii) utanone into ut2ene iii)

en=ene into mromoacetophenone iv) ex3yne into exan

3one v) en=oic acid into mnitroen=ylalcohol

13) o ill you convert en=aldehyde into folloing compounds

ampore than one steps may e reCuired

i) en=ophenone ii) en=oic acid iii) 3-henylpropan1ol iv)hydroxyphenylacetic acid

14) Give a chemical test to distinguish eteen folloing pairs of

compounds

i) Ethanal and propanone ii) -rpopanal and propanone iii)

-entane2one and pentane3one

1$) Write the structure and (- names of folloing caroxylicacids

i) ltRdimethylutanoic acid ii) Rphenylutyric acid iii) 1038389

chloromethylvaleric acid

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8112019 Chemistry Question 12sci (1)

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i) even types of unit cell

ii) 0hree types of cuic cell

iii) 0o types of tetragonal unit cell

iv) 6our types of orthorhomic unit cell

v) 0o types of monoclinic unit cell

vi) 0riclinic unit cell

vii) -rimitive hexagonal unit cell

17) istinguish eteen the folloing

i) rystalline lattice and unit cell

ii) exagonal close pac8ing and cuic close pac8ing

iii)0etrahedral void and octahedral void

11) Give the numer of lattice points in one unit cell of crystal

structure

i) imple cuic ii) 6ace centered cuic iii) ody centered cuic

iv) 6ace centered tetragonal

12)Explain hy

i) (onic solids are hard and rittle

ii) olid ice is lighter than ater

iii) alculate the percentage e9ciency of pac8ing in case of

folloing crystal

a) imple cuic ) ody centered cuic c) 6ace centered cuic

ith all atoms touching one another

13) Explain ith the help of neat diagram and and

type of three dimensional pac8ing

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14) Explain the pac8ing and voids in ionic solids

1$) Write note on radius ratio rule for ionic compounds

1) Explain ho to deduce coordination numer of cations

1+) What are point defects

1) Explain interstitial defect and impurity defect

15) Explain the origin of electrical properties in solids

27) What are semiconductors escrie the to main types of

semiconductors

21) Explain the origin of magnetic properties in solids22) Explain

() iamagnetism ii) -aramagnetism iii) ferromagnetism

23) lassify the folloing semiconductors into n or p type

i) doped ith i

ii) s doped ith i

iii) - doped ith i

iv) Ge doped ith (n

24) Explain and theory

2$) istinguish eteen conductorslt semiconductors and

insulators

2) Explain the termsi) chott8y defect iii) 6ren8el defect

PROBLEMS

8112019 Chemistry Question 12sci (1)

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() ioium is found to crystalli=es ith cc structure and found to

have density of $$ggtcm3 etermine the atomic radius of

nioium if its atomic mass is 532) opper crystalli=es into 6 structure and the unit cell has

length of edge 31 17 cm alculate the density of copper if

the molar mass of u is 3$ggtmol

3) ilver crystalli=es in 6 structure ith edge length of unit celllt

47+ 17 cm and if density of metallic silver is17$ggtcm3

alculate the molecular mass of silver

4) etermine the density of cesium chloride hich crystalli=es in type of structure ith the edge length 4121pm 0he atomic

masses of cesium and chloride are 133 and 3$$ respectively

$) nit cell of iron crystal has edge length of 2pm and density

of +ggtcm3etermine the type of crystal lattice 6eA$)

) n atom crystalli=es in 6 crystal lattice and a density of

17ggtcm3 ith unit cell edge length of 177pm alculate numer of

atoms present in 1g of crystal

+) n element and constitute type crystalline structure

Element occupies ody center position and is at the corners of

cue What is the formula of the compound What are the

coordination numers of and

) toms and form 6 crystalline structure tom is

present at the corners of the cue and atom is at the faces of

the cue What is the formula of the compound

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SOLUTION AND COLLIGATIVE PROPERTY

THEORY

1) ene the terms solutionlt solutelt solvent and concentration

2) What are the dierent types of solution

3) Explain dierent ays in hich concentration of a solution can

e expressed

4)ene i) percentage y eightlt ii) mole fractionlt iii) ampolalitylt iv)

ampolarity

$)ene the term colligative property Give examples

) tate and explain enryBs la

+) Explain solid solution

) What is a vapour pressure of liCuid

5) Explain the eect of temperature on the vapour pressure of

liCuid

17) What are the factors hich aects vapour pressure

11) What is loering of vapour pressure of a solution

12) What is relative loering of vapour pressure

8112019 Chemistry Question 12sci (1)

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13) tate aoultBs la and otain expression for loering of

vapour pressure hen nonvolatile solute is dissolved

14) erive the relationship eteen relative loering of vapour

pressure and molar mass of solute1$) What is oiling point of liCuid

1) What is elevation of oiling point

1+) What is molal elevation constant oes it depend on the

nature of the solute

1) erive the relation eteen elevation of oiling point and

molar mass of the solute15) ene free=ing point of liCuid

27) What causes depression in free=ing point

21) ene molal depression constant

22) o molar mass of a nonvolatile solute is related to the

depression in free=ing point erive an eCuation

23) What is osmosis

24) ene semipermeale memrane and osmotic pressure

2$) ene the terms i) (sotonic solution ii) ypertonic solution

iii) ypotonic solution

2) tate i) vant ooyles la ii) vant oharles la

2+) erive vant o eCuation for osmotic pressure of a solution

2) o molar mass of a solute is determined from osmotic

pressure measurements

25) Explain anormal osmotic pressure

37) tate vant ovogadroBs la

8112019 Chemistry Question 12sci (1)

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31) Explain

i) normal molecular masses

ii) vant o factor

32) erive the eCuations

i) A

ii) A

PROBLEMS

1) 342g of glucose is dissolved in 477g of ater alculate

percentage y mass of glucose solution

2) solution is prepared y dissolving certain amount of solute in

$77g of ater 0he percentage y mass of a solute in solution is

23 alculate mass of solute

3)4cm3 of methyl alcohol is dissolved in 2$2g of ater

alculatelt i) percentage y mass of methyl alcohol ii) ampole

fraction of methyl alcohol and ater Given density of methyl

alcohol A 7+5$2ggtcm3 and A12lt A1 and DA1)

4) 12cm3 of en=ene is dissolved in 1cm3 of xylene alculate

y volume of en=ene

$) alculate mole fraction of l in solution of l containing

24 of l y massA1lt lA3$$)

) alculate mole fraction of solute in its 2 molal aCueous

solution

8112019 Chemistry Question 12sci (1)

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+) alculate the mole fractionlt molality and molarity of D3 in a

solution containing 122 D3 Given density of

D3A173ggtcm3lt A1lt A14lt DA1

) ulphuric acid is 5$ y mass alculate mole fraction andmolarity of 2D4 of density 151ggtcm3

5) Cueous solution of aD is mar8ed 17gt) 0he density of

the solution is 17+7ggtcm3

alculatelt

i) molarity ii) molality and iii) mole fraction of aD and ater

aA23lt A1 and DA1

17) attery acid is 422amp aCueous 2D4 solutionlt and has density

of 121ggtcm3 What is the molality of 2D4 A1lt A32lt DA1

11) 0he vapour pressure of 21 solution of a nonelectrolyte in

ater at 177 is +$$mm g alculate the molar mass of the

solute

12) 0he vapour pressure of ater at 27 is 1+mm g alculate

the vapour pressure of a solution containing 2g of

urea2D2) in $7g of ater A14lt A12lt A1

13) (n an experimentlt 174g of mannitol ere dissolved in 177g

of ater 0he vapour pressure of ater as loered y 7375mm

g from 1+$3$mm g alculate the molar mass of mannitol

14) solution containing 7$12g of naphthalene molar mass A

121+ggtmol) in $7g of l4 gives a oiling point elevation of

7472F While a solution of 721g of un8non solute in the

same mass of the solvent gives a oiling point elevation of 74+F

6ind the molar mass of the un8non solute

F for l4A $73F 8g mol1 of solvent)

8112019 Chemistry Question 12sci (1)

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1$) alculate the mass in grams of an impurity of molar mass

177gmol1 hich ould e reCuired to raise the oiling point of

$7g of chloroform y737F

F for chloroformA 33F 8g mol

1

)1) oiling point of a solvent is 72 When 7415g of the solute

of molar mass 2$24g mol1 as dissolved in +$g of the solventlt

the oiling point of the solution as found to e 72$ 6ind

the molal elevation constant

1+) 7ml of glacial acetic acid ith density 17gm 1 is

dissolved in 18g ater and the solution fro=e at 7727$

alculate vant o factor and F f for ater is1F 8g mol1

1) enryBs la constant for soluility of methane in en=ene is

42+ 17$mm g at constant temperature alculate the

soluility of methane at +7mm g pressure at same

temperature

CHEMICAL THERMODYNAMICS AND ENERGIES

Theory

1)ene the terms systemlt surroundinglt open systemlt close

systemlt isolated systemlt exothermic reactionslt endothermic

reactionslt extensive properties and intensive properties

2) Explain the term state function Give to examples of state

functions and to example of path function

3) Explain thermodynamics eCuilirium

4) istinguish eteen isothermal and adiaatic process

$) What is a reversile process What are its features

) ho that pressure times volume is eCual to or8

8112019 Chemistry Question 12sci (1)

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+) erive the expression for or8 hen a gas expands against

constant external pressure

) lassify the folloing reactions according to or8 done y the

systemlt on the system and no or8 done if pressure is constanta) 2g) H l2g) 2lg)

) 3D2g) 2D3g)

c) 2D2g) D2g)H 2D3g)

d) ampgD3s) H ampgDs) D2g)

e) 4D3s) H 2Dg) 22Dg)

5) What is the dierence dierence eteen and What is

the sign of for exothermic and endothermic reactions nder

hat circumstances

17) What are the sign convention for C and W

11) Explain the concept of maximum or8

12) free expansion of a gas results into no or8 Explain

13) erive the expression for maximum or8

14) ene enthalpy t constant pressure sho that A

1$) (t is di9cult to calculate lt hoever can e easily

determined Why Explain giving examples

1) tate rst la of thermodynamics Iustify its mathematical

eCuation

1+) Dtain the relationship eteen and for a chemical

reaction

1) What is the expression for or8 done in a chemical reaction

Explain the meaning of each term

8112019 Chemistry Question 12sci (1)

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8112019 Chemistry Question 12sci (1)

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a) dissolution of sugar in hot coee

) separation of r and Fr from their mixture

c) spreading of fragrance hen a ottle of perfume is opened

d) Jo of heat from cold oKect to hot oKect

e) heat transfer from ice to room at 2$

37) ene entropy Give its units What does entropy measures

31)Explain ho entropy changes in the folloing processes

a) free=ing of liCuid

) sulimation of solid

c) dissolving of ater in sugar

d) condensation of vapour

32) Which memer of the folloing pairs have larger entropy

Why

a) D2s) or D2g)

) 3Dl) or 2$D2$l)

c) Dg) or 2D4g)

d) eg) or Frg)

e) as) or als)

33) Why is it more convenience to predict spontaneity of reaction

in terms of Gsys rather than total34) ene Gis energy and change in Gis energy What are

the units of Gis energy

3$) tate second la of thermodynamics in terms of entropy and

express it mathematically

8112019 Chemistry Question 12sci (1)

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3) tate third la of thermodynamics What is its usefulness

3+) Why is it impossile for any sustance to have an asolute

entropy =ero at temperature greater than 7F

3) (t is impossile for a reaction to e spontaneous yetexothermic Explain ith example

35) (s it possile for a reaction to e nonspontaneous yet

exothermic Explain ith example

47) -redict the sign of in the folloing process Give reasons

for your anser

a) 2D4g) 2D2g)) 6e2D3s) H 32g) 26es) H 32Dg)

c) 2g) H 32g) 23g)

d) ampgD3s) 23g)

e) D2g) D2s)

f) l2g) 2lg)

41) What can e said aout the spontaneity of reactions hen

a) and are oth positive

) and oth are negative

c) is positive and is negative

d) is negative and is positive

42) (dentify hich memer of the folloing pairs has largerentropy Why

a) eg) in a volume of 1 or eg) in a volume of $ oth at 2$

) D2g) at 1atm or D2g) at 17atm oth at the same temperature

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c) 2$Dl) or 2$Dg)

d) $ moles of e or 2 moles of e

43) What are the signs of for the folloing reaction

Explain ith reasons

2g) 2g)

44) erive the relationship eteen G and total

4$) Iustify the inclusion of Crev and 0 in the denition of entropylt

A Crevgt 0

4) 0he increase in entropy of a system alone does not guarantee

the spontaneity of a process Explain

4+) 0he criterion of spontaneity in terms of Gis energy is the

same as that laid don y second la of thermodynamic o

PROBLEMS

1) 0hree moles of an ideal gas are expanded isothermally from a

volume of 377cm3 to 2$ at 377F against a pressure of 15atm

alculate the or8 done in atm and Koules2) Dne mole of an ideal gas is compressed from $77cm3 against a

constant pressure of 121 17$-a 0he or8 involved in the

process is 3$7I alculate the nal volume

3) alculate the maximum or8 hen 24g of oxygen are

expanded isothermally and reversily from a pressure of 1

17$-a to 1778-a at 25F

4) 0hree moles of an ideal gas are compressed isothermally andreversily to a volume of 2 0he or8 done is 2538I at 22

alculate the initial volume of a gas

8112019 Chemistry Question 12sci (1)

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$) 2 172 8g of nitrogen is expanded isothermally and

reversily at 377F from 1$1$ 17$ m 2 hen the or8 done is

found to e 1+338 I 6ind the nal pressure

) sample of a gas asors 47778I of heata) if volume remains constantlt hat is

) uppose that in addition to asorption of heat y the samplelt

the surrounding does 27778I of or8 on the samplelt hat is

c) uppose that as the original sample asors heatlt it expands

against atmospheric pressure and does 778 I of or8 on its

surroundings What is

+) alculate the or8 done in each of the folloing reactions

tate hether or8 is done on or y the system

a) 0he oxidation of one mole of D2 at $7

2D2g) H D2g) 2D3g)

) decomposition of 2 moles of 4D3 at 177

4D3s) 2Dg) H 22Dg)

) 0he enthalpy change for the reaction

24g) H 2g) 2g) is 27I hen 177m of ethylene and

177m of 2 react at 1atm pressure alculate the pressure

volume or8 and

5) alculate standard enthalpy of the reaction

6e2D3s) H 3Dg) 26es) H 3D2g) from the folloing data

f 76e2D3)A2428Imol1ltf 7D)A117$8Imol1lt

f 7D2)A353$8Imol1

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8112019 Chemistry Question 12sci (1)

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Electro chemitry

Theory

1ene the terms resistivitylt conductivity and molar

conductivity Give its ( units

2Explain the terms conductivity and molar conductivity o are

they interrelated

3Why does conductivity of s solution decrease on dilution of a

solution

4o does molar conductivity of an electrolyte vary ith

concentration

$o does the variation in molar conductivity of an electrolyte

ith concentration diers for strong and ea8 electrolytes

Explain the dierent ehaviour of strong and ea8 electrolytes

toards the variation of conductivity ith concentration

+tate and explain Fohlrausch la of independent migration of

ions o it is useful to determine the molar conductivity of ea8

electrolytes at =ero concentration

o is the molar conductivity of strong electrolytes at =ero

concentration determined y graphical method Why is this

method not useful for ea8 electrolytes

5What is cell constant What is its unit o is it determined

17ene anode and cathode

11 Why is cathode in electrolytic cell considered to e negative

and anode positive

12 -redict the half cell reactions that occur hen fused Fl is

electroly=ed in a cell ith inert electrodes What is the overall cell

reaction

8112019 Chemistry Question 12sci (1)

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13 tate 6aradayBs las of electrolysis

14o ill you calculate the numer of moles of electrons

actually passed and mass of the sustance produced during

electrolysis of a salt solution using reaction stoichiometry1$o many electrons ill have a total charge of 1 coulom

1 o many faradayBs ould e reCuired to plate out 177 mole

of free metal from the folloing cations

a) ampg2H

) r3H

c) -2H

d) uH

1+ ene coulom and faraday

1 escrie the electrolysis of molten al using inert

electrodes

15 What is the dierence eteen electrolytic cell and voltaic

cell

27 Why is anode in galvanic cell considered to e negative and

cathode positive electrode

21 8etch the cell for the electrolysis of molten al (ndicate

cathodelt anode and their signs ho the Jo of electrons and

ions

22 What is salt ridge What are its functions in galvanic cell

23 What are the conventions used to rite cell diagramcell

formula)

24 escrie the construction of aniel cell Write electrode half

reactions and net cell reaction in aniel cell

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2$ escrie the folloing types of electrodes giving one

examplelt ith reference to formulationlt electrode reaction and

ernst eCuation for electrode potential

a) metalsparingly salt electrode) gas electrode

2 What is redox electrode Give one example ith formulationlt

electrode reaction and ernst eCuation for electrode potential

2+ ene the terms oxidation potentiallt reduction potential and

cell potential

2 What conditions are reCuired for a cell potential to e calledstandard cell potential

25 6ormulate a cell for each of the folloing electrode reactions

a) n2H aC) H 2gl s) L n4H aC) H 2gs) H2l aC)

) ampg s) H r2l) L ampg2H aC) H 2r aC)

37 6ormulate a cell from the folloing electrode reactions

a) l2g) H 2e L 2l aC)

) 2( aC) L (2s) H 2e

31 What are standard electrode potential and standard emf of

the galvanic cell

32 Write ernst eCuation and explain the terms involved in it

What part of the eCuation represents the correction factor for

nonstandard state conditions

33 Write ernst eCuation for the folloing reactions

a) rs) H 36e3H aC) L r3H aC) H 36e2H aC)

) l3H aC) H 3e L l s)

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34 onsider the folloing E7 values and half reactions

(2s) H 2e L 2( aC) E7A7$3$M

u2H aC) H 2e L u s) E7A733+M

d2H aC) H 2e L ds) E7A77473

a) Which of the metals or nonmetals or ions is the strongest

oxidi=ing agent and hich is the strongest reducing agent

) 0he half reactions can e used to construct three galvanic

cells Which ill have the highest cell potential

3$ -redict hether

a) gH can oxidi=e - to -2H under standard state condition

) E7gA7+55M and E7

-A712M

3 -redict hether the folloing reactions occur under standard

state conditions

a) Dxidation of gs) y l2g) E7gA7Mlt E7

l2A13M

) eduction of 6e

3H

to 6e

2H

y us) E

7

6e3Hlt 6e2H A 7++MltE7uA14M

3+ 8etch and descrie the operation of

a) dry cell

) 2D2 fuel cell

3 What are the advantages and disadvantages of fuel cells

35 8etch lead storage cell

47 Write electrode reaction and overall cell reaction during the

operation of lead storage cell

41 Write electrode reaction and overall cell reaction hen lead

accumulator ehaves as an electrolytic cell

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42 o can ernst eCuation e used to sho that electrode

potential is eCual to the standard electrode potential y putting

approximate values in ernst eCuation se u2HNd half cell for

illustration

43 o are G7lt E7cell and eCuilirium constant related for a

particular reaction

44 Why is eCuilirium constant related to E7cell and not Ecell

4$ G7 for a redox reaction depends on the numer of electrons

transferred Explain

4 o does the eCuiliriumlt G7An6E7 explain that an

electrical potential is an intensive property

4+ Write shorthand notation for the cell for each of the folloing

reactions

a) u2H aC) H 2gs) H 2r L u s) H 2gr s)

) n2H aC) is oxidi=ed y r2 l)

4 rrange the folloing reducing agents in order of increasing

strength under standard state conditions 0he standard potentialsfor the reduction half reactions are given

gH aC) 7M)lt l3H aC) 1M)lt 62g) 2+M)lt l2g) 13M)lt

(2s) 7$4M)lt d2H aC) 74M)

45 rrange the folloing oxidi=ing agents in order of increasing

strength under standard state conditions 0he standard potentials

for the reduction half reactions are given

ls) 1M)lt l aC) 13M)lt us) 734M)lt 6es)744M)lt r

aC) 175M)lt is) 72M)

$7 Which species in each of the folloing pairs is etter oxidi=ing

agent under standard state conditions standard potential are

given) Give reasons for your anser

8112019 Chemistry Question 12sci (1)

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a) r2l) 175M) or u3H 14M)

) H aC) or gH aC) 7M)

c) -2H aC) 713M) or o2H 72M)

d) l2 g) 13M) or r3H 7+4M)

$1 Which species in each of the folloing pairs is etter reducing

agent under standard conditions E7 values are given Give

reasons for your anser

a) Fs) 2353M) or ampgs) 23M)

) o2H aC) 11M) or (n s) 714M)

c) e3H aC) 11M) or 0i2H73+M)

d) gl) 7M) or is) 723M)

PROBLEMS

1 conductivity cell lled ith 771amp Fl given at 2$o the

resistance of 74ohms 0he conductivity of Fl at 2$

o

is 7777

CHEMISTRY

d f O DF EEampE0

1) What are dloc8 elements

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2) What are floc8 elements

3) Explain the meaning of

i) 0ransition series ii) (nner transition element

4) Explain the position of the folloing in periodic tale

i) dloc8 elements ii) anthanoids iii) ctinoids

$) Explain the oxidation state of 1st ro elements of transition

series

) Explain the oxidation states of lanthanoids and actinoids

+) Why do lanthanoids form coloured compounds ) Explainlt most of the transition metal compounds are

remar8aly coloured

5) Why chromium has electronic conguration 3d$ 4s1 and not 3d4

4s2

17) Why does copper sho anormal electronic conguration

11) Explainlt the trends in atomic and ionic si=es of lanthanoidsand also of 1st ro elements of transition series

12) What are actinoids

13) What are transuranic elements Write their name

14) Why transition elements sho tendency to form large numer

of complexes

1$) Explain the compounds of copper ((() are coloured ut thoseof =inc are colourless

1) o is potassium dichromate prepared from chrome ion

1+) Write the preparationlt properties and use of potassium

permanganate

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1) Explainlt hy -t(M) complexes are generally octahedral hile

-t(() complexes are sCuare planar

15) ierentiate eteen lanthanoids and actinoids

27) What are chemical tins Give examples

21) Explain hy Gd3H is colourless

COORDINATION COMPOUNDS

1) What is the dierence eteen doule salt and coordinationcompounds

2) Explainlt hy 6e4)2 D4)22D) is a salt ut F 4P6e)Q is a

complex compound

3) Write the formula of the folloing complexes

i) alcium hexa cyano ferrate (()

ii) iammine dichloro platinum

iii) is ethylene diammine) dichloro iridium ((() ion

iv) -entamine caronato chromium ((() D(E

v) 0risethylene diammine ) coalt((() sulphate

vi) iamine ethylene diammine nic8el (() acetate

4) Write the rules hich are applied hile riting the formulas of

coordination compounds

$) ene the terms

i) entral metal atomgtion

ii) igand

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iii) oordination compound

iv) oordination sphere

v) oordination numer

vi) oordination polyhedral

vii) omoleptic and heteroleptic complexes

viii) harge on the complexes

ix) oordination entity

) Write (- name of the folloing complexes

i) Pr2D)4 l2QD3

ii) P-ten)l4Q

iii) F 2Pi)4Q

iv) sP6el4Q

v) rl3-y)3

vi) F 3Po2D4)3Q

vii) Por2en)2Q

viii) P-tl4Q2

ix) Po2D))en)2Q2H

x) F 3Pl2D4)3Q

+) Explain the importance of principles of additive nomenclature

) (dentify the folloing ions y a simple test forming complex

compound

i) u2H ii) i2H iii) 6e3H iv) o2H

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5) Dn the asis of WernerBs theory explainlt hy coalt amine

complexlt ol343 hen treated ith gD3 solution

precipitates only one ion even though there are three ions

17) alculate the eective atomic numer E) of the centralmetal atom in the folloing compounds

i) F 3P6e)Q ii) rD)

11) Write the postulates of WernerBs theory

12) Explain the onding in ol333 and ol3$3

13) Explain stereoisomerism in metal complexes ith coordination

numer 4 and 14) Why the tetrahedral complexes do not exhiit geometrical

isomerism

1$) ra cis and trans geometrical isomers of

i) dichlororomo iodo palladium (() ion

ii) P-t(()3)2l2Q

iii) Po((()3)l3Q

iv) Po((()3)42D)lQ2H

1) ra all possile geometrical isomers of P-t(M)

3)2-y)2l2Q2H ion

1+) Write oxidation statelt coordination numer and electronic

conguration of the metal atom in the folloing complexes

i) rl3-y)3 ii) F 4Pampn)Q

1) lassify the folloing ligands into monodentatelt polydentate

and amidentate

i) 3 ii) iii) iv) v) D2 vi) ethylene diammine

vii) oxalate

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viii) triaminotriethylamine

15) ol3$32D is a pin8 solidlt the solution of this salt is also

pin8 and formed 3mol of gl ith silver nitrate solution Dn

heating pin8 solidlt it loses one ater molecule and forms purplesolid having same ratio of o3l as that of pin8 solid 0he

purple solid hen dissolved in ater and treated ith forms 1 mol

of gl ra the structure and name of the pin8 and purple

solids

27) ame the octahedral complex ions

i) Po2D4) en)2QH ii) transPr)4 3)2Q

21) ra the structures of the folloing complexes

i) Pol4Q2 ii) Pampn3)Q2H iii) P-tlQ iv) iD)4 v) Pi)4Q2

22) (n an octahedral crystal eldlt dra the gure to sho splitting

of dorital

23) What are ea8 eld and strong eld ligands What is spectro

chemical series

24) Pi)4Q2 is diamagnetic hile Pr3)Q3H is paramagnetltexplain

2$) Dn the asis of valence ond theory explain the nature of

onding in the folloing complexes

i) Po6Q3 ii) Po2D4)3Q3

2) lue coloured copper sulphate solution gave folloing

experimental results Explain the same

i) With aCueous potassium chloride it gave right green solution

ii) With aCueous potassium Juoride it gave a green precipitate

2+) ra the structures of optically active isomers of Poen)3Q3H

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2) ra the geometrical and optical isomers of

i) Pol2en)2QH ii) Polen)23)Q2H

25) What is lin8age isomerism Explain ith an example

37) What are hydrate isomers Explain ith examples

31) Explain the structure of

i) upraammonium sulphate ii) Po3)Q3H

32) What are the limitations of valence ond theory

33) Explain the magnetic properties of coordination compounds

34) Write the salient features of crystal eld theory What are itslimitations

3$) Explain the octahedral geometry of complexes using crystal

eld theory

3) Write a note on colours in coordination compounds

3+) Explain the factors aecting the staility of coordination

compound3) Write rief the applications of coordination compounds

HALOGEN DERIVATIVES O ALANES AND ARENES

1) What are al8yl halides o are they classied

2) Write (- names of the folloing compounds

i)

ii) 2Al

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iii)

iv)

v)

vi) secutyl chloride

vii) neopentyl romide

viii) tutyl iodide

ix) isopropyl romide

3) o is ethyl romide prepared from

i) Ethyl alcohol ii) ethane iii) ethane

4)Write the preparation of isopropyl chloride using the folloing

reagents

i) -l3 ii) -l$ iii) l2 iv) l v) Dl2

$) o is group replaced y folloing functional rroups

i) OD ii) O iii) O iv) O2

) Write a note on

i) andmeyerBs reaction ii) Wurt= reaction iii) 6in8elstein reaction

iv) 6ittig reaction v) 6riedel raft reaction

+) (dentify and in the folloing

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) Give the structures of the folloing compounds

i) 3romo2methyl pentane ii) 2romo3ethyl hexane iii) 1

holo utane

iv) pichloroen=ene v) 1lt1lt10richloroethane

5) student has performed an experiment in the laoratory e

mixed ater ith hexane and found to layers separated econd

time he mixed chloroform ith ater and he again found to

layers in the test tue Explain hich ill e upper layer and

hich one ill e loer layer in oth the experiments

17) onvert 1hloroutane into the folloing compounds

i) utane1ol ii) 1(odoutane iii) 3222 iv)

11) 6or each pair of compoundslt state hich compound is etter

2 sustrate

i) 2romoutanelt isopropyl romide ii) 1(odo2lt2dimethyl

propane or isopropyl iodide

12) hoose the memer that ill react faster from the folloing

pairs y 1 mechanism

13) -redict the expected product of sustitution reaction

i) isoutyl chloride mH sodium ethoxide

ii) nutyl chloride H sodium

iii) 1hloro propane H aC potassium hydroxide

iv) aniline H aD2gt l

14) Write the products

i) $22A2 H r L

ii) $A2 H r

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iii)

iv)

v)

1$) (dentify the chiral and achiral molecules

i)

ii)

iii)

1) iscuss 2 mechanism of methyl romide using aCueous

FD ra energy prole diagram1+) Write the mechanism of the reaction hen tutyl chloride is

treated ith aCueous FD ith energy prole diagram

1) ierentiate eteen 1 and 2 mechanism

15) Explain the nature of ond in

i) 322 ii)

27) What are uses of

i) 0 ii) (odoform iii) hloroform iv) aron tetrachloride

21) l8yl halides are polar and miscile ith aterlt explain

22) Which one of the folloing is more easily hydrolysed y

aCueous FD

$l$ and $2l

23) rrange the folloing groups in descending order 2lt D3lt

D3lt DD and l

24) ssign or conguration to each of the folloing

structures

8112019 Chemistry Question 12sci (1)

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i)

ii)

iii)

iv)

DDlt -ED E0E

1) What are alcohols o are they classied

2) What are monohydric alcohols o are they classied

4) Write the structures of folloing alcohols

i) 1Ethylcyclohexanol ii) ex3en2ol iii)yclohex2en1ol

iv) -entane1lt4diol

v) 2lt4imethylhexane1lt3lt$triol

$) Explain the folloing

i) -ropan1ol has higher oiling point than nutane

ii) ampethanol is more solule in ater than -ropan1ol

) Write the mechanism of hydration of ethylene to ethyl alcohol

+) -ropan1ol can not e prepared y acid catalyst hydration of

propenelt then ho is propene converted into propan1ol

)5) o is propanone converted into

i) -ropan2ol ii) 2ampethyl propan2ol

17) o ill you otain utan2ol from

8112019 Chemistry Question 12sci (1)

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i) -ropanal ii) utan2one iii) ut2ene

11) o is propan1ol prepared from

i) -ropanal ii) -ropanoic acid

12) o is cyclopentanol prepared from

i) yclopentanone ii) yclopentene

14) Write the mechanism of acid catalysed dehydration of ethanol

to give ethane

1$) Write the structure of aldehyde lt caroxylic acid and ester

that yield folloing alcohol

1+) o ill you prepare

i) 2ampethylutane1ol from an al8ene

ii) cyclohexylmethanol from a Grignard reagent

iii) 1phenylethanol from acetaldehyde

1) o are folloing conversions rought aout

i) en=yl chloride to en=yl alcohol

ii) en=yl alcohol to en=oic acid

iii) 1Ethylcyclohexanol from yclohexanone

15) What are phenols o are they classied

27)21) Give the structures and (- names of isomeric phenols

represented y the molecular formula 17D

22) o is phenol prepared from

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i) hloroen=ene ii) (sopropyl en=ene iii) en=ene sulphonic

acid iv) aniline

23 ) Explain the folloing

i) -henol is more acidic than phenol

ii) onitrophenol is more acidic than ocresol

iii) pnitrophenol is less volatile than onitrophenol

24) Explain the folloing reactions of phenol

i) FoleBs reaction ii) iemer0iemann reaction

2$) ame the reagents used to convert phenol intoi) picric acid ii) 2lt4lt0riromophenol iii) en=ene iv) ophenol

sulphonic acid

2) What is the action of folloing reagents on phenol i)

romine in 2 at lo temperature

ii) ilute nitric acid at room temperature iii) oncentrated

sulphuric acid at room temperature

2+) Give distinguish test eteen phenol and ethanol

2) What are ethers o are ethers classied

25) What is metamerism Give the structure and (- name of

metamers of 2ampethoxypropane

37) Write the mechanism for acidic dehydration of ethanol

31) o is diethyl ether prepared y continuous ethericationprocess Why is the process so called

32) o ill you prepared methoxyethane from

i) l8yl halide ii) ia=omethane

33) tate the important uses of i) -henol ii) diethyl ether

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34) Write the mechanism of action of hydrogen romide on tert

utyl methyl ether

3$) Explain the folloing reactions of anisole

i) romination ii) itration iii) 6riedelrafts al8ylation iv)6riedelrafts acylation

3) Explainlt i) 0he OD group attached to aromatic ring in

phenols and ii) 0he al8oxy group in al8yl aryl ethers are ortholt

para directing and activate the aromatic ring toars electrophilic

sustitution

3+) Write the chemical eCuations for Williamson synthesis of 2

Ethoxy2methypentane starting from ethanol and 2ampethylpentan2ol

3) n organic compound ith the formula 417D3 shos

properties of ether and alcohol hen treated ith an excess of

r yields only one compound 1lt2 diromomethane Write

structural formula of ether and that of alcohol

ALDEHYDES ETONES AND CABO$YLIC

ACID

1) Write the structure and give (- names of the folloing

compounds

i) chloropropionaldehyde

ii) Rhydroxyutyraldehyde

iii) isoutyraldehyde

iv) Rmethylvaleraldehyde

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v) isopropyl methyl 8etone

vi) diisopropyl 8etone

vii) mromoen=aldehyde

viii) dien=yl 8etone

ix) divinyl 8etone

x) allyl methyl 8etone

xi) ethyl phenyl 8etone

xii) nutyrophenone

2) Write the structure of folloing compounds

i) 4ampethyl3nitroen=ophenone ii) 2ampethyl4oxopentanal iii)

3Dxopentanoic acid iv) 4chloropropiophenone v) 3

ampethoxyutanal vi) 4ydroxycyclohaxane caraldehyde

3) o ill you prepare i) propiophenone from propanenitrile ii)

4chloroen=aldehyde from 4chlorotoluene iii)

yclohaxanecaraldehyde from cyclohexylmethanol iv) 4

methoxyacetophenone from anisole v) 4methylen=aldehydefrom toluene

4) rrange the folloing compounds in the increasing order of

their oiling points

i) dimethyl etherlt ethyl alcohollt propanelt acetaldehyde

ii) acetonelt npropyl alcohollt ethyl methyl alcohol and nutane

$) What is the action of hydrogen cyanide in asic medium on i)utanone ii) 2lt4dichloroen=aldehyde

) What is the action of folloing compounds on cyclohexanone in

presence of dry hydrogen chloride

i) ethyl alcohol ii) ethylene glycol

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+) Write the structure of product in the folloing reactions

i) 322D3

ii) $2D3

) Write the structures of caronyl compounds and ammonia

derivatives that comine to give folloing imines

i)

ii)

iii)

iv)v)

vi)

5) Write the chemical eCuations for aldol condensation or

anni==aro reaction that folloing compounds undergo

i) -ropanal ii) 2ampethylpropanal iii) -entanal iv) 3

ampethylutanal v) cetophenonevi) pampethoxyen=aldehyde vii) 2ampethylcyclohaxanone viii)

chloral ix) yclopentanone

x) -henyl acetaldehyde xi) 1-henylpropan1one

17) Write the structure of the maKor product of the folloing

crossed aldol condensation

i) formaldehyde and propionaldehydeii) en=aldehyde ith acetone

11) (dentify the compounds SBlt SB and SB in the folloing

reactions and rerite the complete eCuations

i)

8112019 Chemistry Question 12sci (1)

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ii)

12)o ill you eect folloing tostep conversions

i) -ropanal into utanone ii) utanone into ut2ene iii)

en=ene into mromoacetophenone iv) ex3yne into exan

3one v) en=oic acid into mnitroen=ylalcohol

13) o ill you convert en=aldehyde into folloing compounds

ampore than one steps may e reCuired

i) en=ophenone ii) en=oic acid iii) 3-henylpropan1ol iv)hydroxyphenylacetic acid

14) Give a chemical test to distinguish eteen folloing pairs of

compounds

i) Ethanal and propanone ii) -rpopanal and propanone iii)

-entane2one and pentane3one

1$) Write the structure and (- names of folloing caroxylicacids

i) ltRdimethylutanoic acid ii) Rphenylutyric acid iii) 1038389

chloromethylvaleric acid

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14) Explain the pac8ing and voids in ionic solids

1$) Write note on radius ratio rule for ionic compounds

1) Explain ho to deduce coordination numer of cations

1+) What are point defects

1) Explain interstitial defect and impurity defect

15) Explain the origin of electrical properties in solids

27) What are semiconductors escrie the to main types of

semiconductors

21) Explain the origin of magnetic properties in solids22) Explain

() iamagnetism ii) -aramagnetism iii) ferromagnetism

23) lassify the folloing semiconductors into n or p type

i) doped ith i

ii) s doped ith i

iii) - doped ith i

iv) Ge doped ith (n

24) Explain and theory

2$) istinguish eteen conductorslt semiconductors and

insulators

2) Explain the termsi) chott8y defect iii) 6ren8el defect

PROBLEMS

8112019 Chemistry Question 12sci (1)

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() ioium is found to crystalli=es ith cc structure and found to

have density of $$ggtcm3 etermine the atomic radius of

nioium if its atomic mass is 532) opper crystalli=es into 6 structure and the unit cell has

length of edge 31 17 cm alculate the density of copper if

the molar mass of u is 3$ggtmol

3) ilver crystalli=es in 6 structure ith edge length of unit celllt

47+ 17 cm and if density of metallic silver is17$ggtcm3

alculate the molecular mass of silver

4) etermine the density of cesium chloride hich crystalli=es in type of structure ith the edge length 4121pm 0he atomic

masses of cesium and chloride are 133 and 3$$ respectively

$) nit cell of iron crystal has edge length of 2pm and density

of +ggtcm3etermine the type of crystal lattice 6eA$)

) n atom crystalli=es in 6 crystal lattice and a density of

17ggtcm3 ith unit cell edge length of 177pm alculate numer of

atoms present in 1g of crystal

+) n element and constitute type crystalline structure

Element occupies ody center position and is at the corners of

cue What is the formula of the compound What are the

coordination numers of and

) toms and form 6 crystalline structure tom is

present at the corners of the cue and atom is at the faces of

the cue What is the formula of the compound

8112019 Chemistry Question 12sci (1)

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SOLUTION AND COLLIGATIVE PROPERTY

THEORY

1) ene the terms solutionlt solutelt solvent and concentration

2) What are the dierent types of solution

3) Explain dierent ays in hich concentration of a solution can

e expressed

4)ene i) percentage y eightlt ii) mole fractionlt iii) ampolalitylt iv)

ampolarity

$)ene the term colligative property Give examples

) tate and explain enryBs la

+) Explain solid solution

) What is a vapour pressure of liCuid

5) Explain the eect of temperature on the vapour pressure of

liCuid

17) What are the factors hich aects vapour pressure

11) What is loering of vapour pressure of a solution

12) What is relative loering of vapour pressure

8112019 Chemistry Question 12sci (1)

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13) tate aoultBs la and otain expression for loering of

vapour pressure hen nonvolatile solute is dissolved

14) erive the relationship eteen relative loering of vapour

pressure and molar mass of solute1$) What is oiling point of liCuid

1) What is elevation of oiling point

1+) What is molal elevation constant oes it depend on the

nature of the solute

1) erive the relation eteen elevation of oiling point and

molar mass of the solute15) ene free=ing point of liCuid

27) What causes depression in free=ing point

21) ene molal depression constant

22) o molar mass of a nonvolatile solute is related to the

depression in free=ing point erive an eCuation

23) What is osmosis

24) ene semipermeale memrane and osmotic pressure

2$) ene the terms i) (sotonic solution ii) ypertonic solution

iii) ypotonic solution

2) tate i) vant ooyles la ii) vant oharles la

2+) erive vant o eCuation for osmotic pressure of a solution

2) o molar mass of a solute is determined from osmotic

pressure measurements

25) Explain anormal osmotic pressure

37) tate vant ovogadroBs la

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31) Explain

i) normal molecular masses

ii) vant o factor

32) erive the eCuations

i) A

ii) A

PROBLEMS

1) 342g of glucose is dissolved in 477g of ater alculate

percentage y mass of glucose solution

2) solution is prepared y dissolving certain amount of solute in

$77g of ater 0he percentage y mass of a solute in solution is

23 alculate mass of solute

3)4cm3 of methyl alcohol is dissolved in 2$2g of ater

alculatelt i) percentage y mass of methyl alcohol ii) ampole

fraction of methyl alcohol and ater Given density of methyl

alcohol A 7+5$2ggtcm3 and A12lt A1 and DA1)

4) 12cm3 of en=ene is dissolved in 1cm3 of xylene alculate

y volume of en=ene

$) alculate mole fraction of l in solution of l containing

24 of l y massA1lt lA3$$)

) alculate mole fraction of solute in its 2 molal aCueous

solution

8112019 Chemistry Question 12sci (1)

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+) alculate the mole fractionlt molality and molarity of D3 in a

solution containing 122 D3 Given density of

D3A173ggtcm3lt A1lt A14lt DA1

) ulphuric acid is 5$ y mass alculate mole fraction andmolarity of 2D4 of density 151ggtcm3

5) Cueous solution of aD is mar8ed 17gt) 0he density of

the solution is 17+7ggtcm3

alculatelt

i) molarity ii) molality and iii) mole fraction of aD and ater

aA23lt A1 and DA1

17) attery acid is 422amp aCueous 2D4 solutionlt and has density

of 121ggtcm3 What is the molality of 2D4 A1lt A32lt DA1

11) 0he vapour pressure of 21 solution of a nonelectrolyte in

ater at 177 is +$$mm g alculate the molar mass of the

solute

12) 0he vapour pressure of ater at 27 is 1+mm g alculate

the vapour pressure of a solution containing 2g of

urea2D2) in $7g of ater A14lt A12lt A1

13) (n an experimentlt 174g of mannitol ere dissolved in 177g

of ater 0he vapour pressure of ater as loered y 7375mm

g from 1+$3$mm g alculate the molar mass of mannitol

14) solution containing 7$12g of naphthalene molar mass A

121+ggtmol) in $7g of l4 gives a oiling point elevation of

7472F While a solution of 721g of un8non solute in the

same mass of the solvent gives a oiling point elevation of 74+F

6ind the molar mass of the un8non solute

F for l4A $73F 8g mol1 of solvent)

8112019 Chemistry Question 12sci (1)

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1$) alculate the mass in grams of an impurity of molar mass

177gmol1 hich ould e reCuired to raise the oiling point of

$7g of chloroform y737F

F for chloroformA 33F 8g mol

1

)1) oiling point of a solvent is 72 When 7415g of the solute

of molar mass 2$24g mol1 as dissolved in +$g of the solventlt

the oiling point of the solution as found to e 72$ 6ind

the molal elevation constant

1+) 7ml of glacial acetic acid ith density 17gm 1 is

dissolved in 18g ater and the solution fro=e at 7727$

alculate vant o factor and F f for ater is1F 8g mol1

1) enryBs la constant for soluility of methane in en=ene is

42+ 17$mm g at constant temperature alculate the

soluility of methane at +7mm g pressure at same

temperature

CHEMICAL THERMODYNAMICS AND ENERGIES

Theory

1)ene the terms systemlt surroundinglt open systemlt close

systemlt isolated systemlt exothermic reactionslt endothermic

reactionslt extensive properties and intensive properties

2) Explain the term state function Give to examples of state

functions and to example of path function

3) Explain thermodynamics eCuilirium

4) istinguish eteen isothermal and adiaatic process

$) What is a reversile process What are its features

) ho that pressure times volume is eCual to or8

8112019 Chemistry Question 12sci (1)

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+) erive the expression for or8 hen a gas expands against

constant external pressure

) lassify the folloing reactions according to or8 done y the

systemlt on the system and no or8 done if pressure is constanta) 2g) H l2g) 2lg)

) 3D2g) 2D3g)

c) 2D2g) D2g)H 2D3g)

d) ampgD3s) H ampgDs) D2g)

e) 4D3s) H 2Dg) 22Dg)

5) What is the dierence dierence eteen and What is

the sign of for exothermic and endothermic reactions nder

hat circumstances

17) What are the sign convention for C and W

11) Explain the concept of maximum or8

12) free expansion of a gas results into no or8 Explain

13) erive the expression for maximum or8

14) ene enthalpy t constant pressure sho that A

1$) (t is di9cult to calculate lt hoever can e easily

determined Why Explain giving examples

1) tate rst la of thermodynamics Iustify its mathematical

eCuation

1+) Dtain the relationship eteen and for a chemical

reaction

1) What is the expression for or8 done in a chemical reaction

Explain the meaning of each term

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a) dissolution of sugar in hot coee

) separation of r and Fr from their mixture

c) spreading of fragrance hen a ottle of perfume is opened

d) Jo of heat from cold oKect to hot oKect

e) heat transfer from ice to room at 2$

37) ene entropy Give its units What does entropy measures

31)Explain ho entropy changes in the folloing processes

a) free=ing of liCuid

) sulimation of solid

c) dissolving of ater in sugar

d) condensation of vapour

32) Which memer of the folloing pairs have larger entropy

Why

a) D2s) or D2g)

) 3Dl) or 2$D2$l)

c) Dg) or 2D4g)

d) eg) or Frg)

e) as) or als)

33) Why is it more convenience to predict spontaneity of reaction

in terms of Gsys rather than total34) ene Gis energy and change in Gis energy What are

the units of Gis energy

3$) tate second la of thermodynamics in terms of entropy and

express it mathematically

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3) tate third la of thermodynamics What is its usefulness

3+) Why is it impossile for any sustance to have an asolute

entropy =ero at temperature greater than 7F

3) (t is impossile for a reaction to e spontaneous yetexothermic Explain ith example

35) (s it possile for a reaction to e nonspontaneous yet

exothermic Explain ith example

47) -redict the sign of in the folloing process Give reasons

for your anser

a) 2D4g) 2D2g)) 6e2D3s) H 32g) 26es) H 32Dg)

c) 2g) H 32g) 23g)

d) ampgD3s) 23g)

e) D2g) D2s)

f) l2g) 2lg)

41) What can e said aout the spontaneity of reactions hen

a) and are oth positive

) and oth are negative

c) is positive and is negative

d) is negative and is positive

42) (dentify hich memer of the folloing pairs has largerentropy Why

a) eg) in a volume of 1 or eg) in a volume of $ oth at 2$

) D2g) at 1atm or D2g) at 17atm oth at the same temperature

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c) 2$Dl) or 2$Dg)

d) $ moles of e or 2 moles of e

43) What are the signs of for the folloing reaction

Explain ith reasons

2g) 2g)

44) erive the relationship eteen G and total

4$) Iustify the inclusion of Crev and 0 in the denition of entropylt

A Crevgt 0

4) 0he increase in entropy of a system alone does not guarantee

the spontaneity of a process Explain

4+) 0he criterion of spontaneity in terms of Gis energy is the

same as that laid don y second la of thermodynamic o

PROBLEMS

1) 0hree moles of an ideal gas are expanded isothermally from a

volume of 377cm3 to 2$ at 377F against a pressure of 15atm

alculate the or8 done in atm and Koules2) Dne mole of an ideal gas is compressed from $77cm3 against a

constant pressure of 121 17$-a 0he or8 involved in the

process is 3$7I alculate the nal volume

3) alculate the maximum or8 hen 24g of oxygen are

expanded isothermally and reversily from a pressure of 1

17$-a to 1778-a at 25F

4) 0hree moles of an ideal gas are compressed isothermally andreversily to a volume of 2 0he or8 done is 2538I at 22

alculate the initial volume of a gas

8112019 Chemistry Question 12sci (1)

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$) 2 172 8g of nitrogen is expanded isothermally and

reversily at 377F from 1$1$ 17$ m 2 hen the or8 done is

found to e 1+338 I 6ind the nal pressure

) sample of a gas asors 47778I of heata) if volume remains constantlt hat is

) uppose that in addition to asorption of heat y the samplelt

the surrounding does 27778I of or8 on the samplelt hat is

c) uppose that as the original sample asors heatlt it expands

against atmospheric pressure and does 778 I of or8 on its

surroundings What is

+) alculate the or8 done in each of the folloing reactions

tate hether or8 is done on or y the system

a) 0he oxidation of one mole of D2 at $7

2D2g) H D2g) 2D3g)

) decomposition of 2 moles of 4D3 at 177

4D3s) 2Dg) H 22Dg)

) 0he enthalpy change for the reaction

24g) H 2g) 2g) is 27I hen 177m of ethylene and

177m of 2 react at 1atm pressure alculate the pressure

volume or8 and

5) alculate standard enthalpy of the reaction

6e2D3s) H 3Dg) 26es) H 3D2g) from the folloing data

f 76e2D3)A2428Imol1ltf 7D)A117$8Imol1lt

f 7D2)A353$8Imol1

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8112019 Chemistry Question 12sci (1)

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Electro chemitry

Theory

1ene the terms resistivitylt conductivity and molar

conductivity Give its ( units

2Explain the terms conductivity and molar conductivity o are

they interrelated

3Why does conductivity of s solution decrease on dilution of a

solution

4o does molar conductivity of an electrolyte vary ith

concentration

$o does the variation in molar conductivity of an electrolyte

ith concentration diers for strong and ea8 electrolytes

Explain the dierent ehaviour of strong and ea8 electrolytes

toards the variation of conductivity ith concentration

+tate and explain Fohlrausch la of independent migration of

ions o it is useful to determine the molar conductivity of ea8

electrolytes at =ero concentration

o is the molar conductivity of strong electrolytes at =ero

concentration determined y graphical method Why is this

method not useful for ea8 electrolytes

5What is cell constant What is its unit o is it determined

17ene anode and cathode

11 Why is cathode in electrolytic cell considered to e negative

and anode positive

12 -redict the half cell reactions that occur hen fused Fl is

electroly=ed in a cell ith inert electrodes What is the overall cell

reaction

8112019 Chemistry Question 12sci (1)

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13 tate 6aradayBs las of electrolysis

14o ill you calculate the numer of moles of electrons

actually passed and mass of the sustance produced during

electrolysis of a salt solution using reaction stoichiometry1$o many electrons ill have a total charge of 1 coulom

1 o many faradayBs ould e reCuired to plate out 177 mole

of free metal from the folloing cations

a) ampg2H

) r3H

c) -2H

d) uH

1+ ene coulom and faraday

1 escrie the electrolysis of molten al using inert

electrodes

15 What is the dierence eteen electrolytic cell and voltaic

cell

27 Why is anode in galvanic cell considered to e negative and

cathode positive electrode

21 8etch the cell for the electrolysis of molten al (ndicate

cathodelt anode and their signs ho the Jo of electrons and

ions

22 What is salt ridge What are its functions in galvanic cell

23 What are the conventions used to rite cell diagramcell

formula)

24 escrie the construction of aniel cell Write electrode half

reactions and net cell reaction in aniel cell

8112019 Chemistry Question 12sci (1)

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2$ escrie the folloing types of electrodes giving one

examplelt ith reference to formulationlt electrode reaction and

ernst eCuation for electrode potential

a) metalsparingly salt electrode) gas electrode

2 What is redox electrode Give one example ith formulationlt

electrode reaction and ernst eCuation for electrode potential

2+ ene the terms oxidation potentiallt reduction potential and

cell potential

2 What conditions are reCuired for a cell potential to e calledstandard cell potential

25 6ormulate a cell for each of the folloing electrode reactions

a) n2H aC) H 2gl s) L n4H aC) H 2gs) H2l aC)

) ampg s) H r2l) L ampg2H aC) H 2r aC)

37 6ormulate a cell from the folloing electrode reactions

a) l2g) H 2e L 2l aC)

) 2( aC) L (2s) H 2e

31 What are standard electrode potential and standard emf of

the galvanic cell

32 Write ernst eCuation and explain the terms involved in it

What part of the eCuation represents the correction factor for

nonstandard state conditions

33 Write ernst eCuation for the folloing reactions

a) rs) H 36e3H aC) L r3H aC) H 36e2H aC)

) l3H aC) H 3e L l s)

8112019 Chemistry Question 12sci (1)

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34 onsider the folloing E7 values and half reactions

(2s) H 2e L 2( aC) E7A7$3$M

u2H aC) H 2e L u s) E7A733+M

d2H aC) H 2e L ds) E7A77473

a) Which of the metals or nonmetals or ions is the strongest

oxidi=ing agent and hich is the strongest reducing agent

) 0he half reactions can e used to construct three galvanic

cells Which ill have the highest cell potential

3$ -redict hether

a) gH can oxidi=e - to -2H under standard state condition

) E7gA7+55M and E7

-A712M

3 -redict hether the folloing reactions occur under standard

state conditions

a) Dxidation of gs) y l2g) E7gA7Mlt E7

l2A13M

) eduction of 6e

3H

to 6e

2H

y us) E

7

6e3Hlt 6e2H A 7++MltE7uA14M

3+ 8etch and descrie the operation of

a) dry cell

) 2D2 fuel cell

3 What are the advantages and disadvantages of fuel cells

35 8etch lead storage cell

47 Write electrode reaction and overall cell reaction during the

operation of lead storage cell

41 Write electrode reaction and overall cell reaction hen lead

accumulator ehaves as an electrolytic cell

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42 o can ernst eCuation e used to sho that electrode

potential is eCual to the standard electrode potential y putting

approximate values in ernst eCuation se u2HNd half cell for

illustration

43 o are G7lt E7cell and eCuilirium constant related for a

particular reaction

44 Why is eCuilirium constant related to E7cell and not Ecell

4$ G7 for a redox reaction depends on the numer of electrons

transferred Explain

4 o does the eCuiliriumlt G7An6E7 explain that an

electrical potential is an intensive property

4+ Write shorthand notation for the cell for each of the folloing

reactions

a) u2H aC) H 2gs) H 2r L u s) H 2gr s)

) n2H aC) is oxidi=ed y r2 l)

4 rrange the folloing reducing agents in order of increasing

strength under standard state conditions 0he standard potentialsfor the reduction half reactions are given

gH aC) 7M)lt l3H aC) 1M)lt 62g) 2+M)lt l2g) 13M)lt

(2s) 7$4M)lt d2H aC) 74M)

45 rrange the folloing oxidi=ing agents in order of increasing

strength under standard state conditions 0he standard potentials

for the reduction half reactions are given

ls) 1M)lt l aC) 13M)lt us) 734M)lt 6es)744M)lt r

aC) 175M)lt is) 72M)

$7 Which species in each of the folloing pairs is etter oxidi=ing

agent under standard state conditions standard potential are

given) Give reasons for your anser

8112019 Chemistry Question 12sci (1)

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a) r2l) 175M) or u3H 14M)

) H aC) or gH aC) 7M)

c) -2H aC) 713M) or o2H 72M)

d) l2 g) 13M) or r3H 7+4M)

$1 Which species in each of the folloing pairs is etter reducing

agent under standard conditions E7 values are given Give

reasons for your anser

a) Fs) 2353M) or ampgs) 23M)

) o2H aC) 11M) or (n s) 714M)

c) e3H aC) 11M) or 0i2H73+M)

d) gl) 7M) or is) 723M)

PROBLEMS

1 conductivity cell lled ith 771amp Fl given at 2$o the

resistance of 74ohms 0he conductivity of Fl at 2$

o

is 7777

CHEMISTRY

d f O DF EEampE0

1) What are dloc8 elements

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2) What are floc8 elements

3) Explain the meaning of

i) 0ransition series ii) (nner transition element

4) Explain the position of the folloing in periodic tale

i) dloc8 elements ii) anthanoids iii) ctinoids

$) Explain the oxidation state of 1st ro elements of transition

series

) Explain the oxidation states of lanthanoids and actinoids

+) Why do lanthanoids form coloured compounds ) Explainlt most of the transition metal compounds are

remar8aly coloured

5) Why chromium has electronic conguration 3d$ 4s1 and not 3d4

4s2

17) Why does copper sho anormal electronic conguration

11) Explainlt the trends in atomic and ionic si=es of lanthanoidsand also of 1st ro elements of transition series

12) What are actinoids

13) What are transuranic elements Write their name

14) Why transition elements sho tendency to form large numer

of complexes

1$) Explain the compounds of copper ((() are coloured ut thoseof =inc are colourless

1) o is potassium dichromate prepared from chrome ion

1+) Write the preparationlt properties and use of potassium

permanganate

8112019 Chemistry Question 12sci (1)

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1) Explainlt hy -t(M) complexes are generally octahedral hile

-t(() complexes are sCuare planar

15) ierentiate eteen lanthanoids and actinoids

27) What are chemical tins Give examples

21) Explain hy Gd3H is colourless

COORDINATION COMPOUNDS

1) What is the dierence eteen doule salt and coordinationcompounds

2) Explainlt hy 6e4)2 D4)22D) is a salt ut F 4P6e)Q is a

complex compound

3) Write the formula of the folloing complexes

i) alcium hexa cyano ferrate (()

ii) iammine dichloro platinum

iii) is ethylene diammine) dichloro iridium ((() ion

iv) -entamine caronato chromium ((() D(E

v) 0risethylene diammine ) coalt((() sulphate

vi) iamine ethylene diammine nic8el (() acetate

4) Write the rules hich are applied hile riting the formulas of

coordination compounds

$) ene the terms

i) entral metal atomgtion

ii) igand

8112019 Chemistry Question 12sci (1)

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iii) oordination compound

iv) oordination sphere

v) oordination numer

vi) oordination polyhedral

vii) omoleptic and heteroleptic complexes

viii) harge on the complexes

ix) oordination entity

) Write (- name of the folloing complexes

i) Pr2D)4 l2QD3

ii) P-ten)l4Q

iii) F 2Pi)4Q

iv) sP6el4Q

v) rl3-y)3

vi) F 3Po2D4)3Q

vii) Por2en)2Q

viii) P-tl4Q2

ix) Po2D))en)2Q2H

x) F 3Pl2D4)3Q

+) Explain the importance of principles of additive nomenclature

) (dentify the folloing ions y a simple test forming complex

compound

i) u2H ii) i2H iii) 6e3H iv) o2H

8112019 Chemistry Question 12sci (1)

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5) Dn the asis of WernerBs theory explainlt hy coalt amine

complexlt ol343 hen treated ith gD3 solution

precipitates only one ion even though there are three ions

17) alculate the eective atomic numer E) of the centralmetal atom in the folloing compounds

i) F 3P6e)Q ii) rD)

11) Write the postulates of WernerBs theory

12) Explain the onding in ol333 and ol3$3

13) Explain stereoisomerism in metal complexes ith coordination

numer 4 and 14) Why the tetrahedral complexes do not exhiit geometrical

isomerism

1$) ra cis and trans geometrical isomers of

i) dichlororomo iodo palladium (() ion

ii) P-t(()3)2l2Q

iii) Po((()3)l3Q

iv) Po((()3)42D)lQ2H

1) ra all possile geometrical isomers of P-t(M)

3)2-y)2l2Q2H ion

1+) Write oxidation statelt coordination numer and electronic

conguration of the metal atom in the folloing complexes

i) rl3-y)3 ii) F 4Pampn)Q

1) lassify the folloing ligands into monodentatelt polydentate

and amidentate

i) 3 ii) iii) iv) v) D2 vi) ethylene diammine

vii) oxalate

8112019 Chemistry Question 12sci (1)

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viii) triaminotriethylamine

15) ol3$32D is a pin8 solidlt the solution of this salt is also

pin8 and formed 3mol of gl ith silver nitrate solution Dn

heating pin8 solidlt it loses one ater molecule and forms purplesolid having same ratio of o3l as that of pin8 solid 0he

purple solid hen dissolved in ater and treated ith forms 1 mol

of gl ra the structure and name of the pin8 and purple

solids

27) ame the octahedral complex ions

i) Po2D4) en)2QH ii) transPr)4 3)2Q

21) ra the structures of the folloing complexes

i) Pol4Q2 ii) Pampn3)Q2H iii) P-tlQ iv) iD)4 v) Pi)4Q2

22) (n an octahedral crystal eldlt dra the gure to sho splitting

of dorital

23) What are ea8 eld and strong eld ligands What is spectro

chemical series

24) Pi)4Q2 is diamagnetic hile Pr3)Q3H is paramagnetltexplain

2$) Dn the asis of valence ond theory explain the nature of

onding in the folloing complexes

i) Po6Q3 ii) Po2D4)3Q3

2) lue coloured copper sulphate solution gave folloing

experimental results Explain the same

i) With aCueous potassium chloride it gave right green solution

ii) With aCueous potassium Juoride it gave a green precipitate

2+) ra the structures of optically active isomers of Poen)3Q3H

8112019 Chemistry Question 12sci (1)

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2) ra the geometrical and optical isomers of

i) Pol2en)2QH ii) Polen)23)Q2H

25) What is lin8age isomerism Explain ith an example

37) What are hydrate isomers Explain ith examples

31) Explain the structure of

i) upraammonium sulphate ii) Po3)Q3H

32) What are the limitations of valence ond theory

33) Explain the magnetic properties of coordination compounds

34) Write the salient features of crystal eld theory What are itslimitations

3$) Explain the octahedral geometry of complexes using crystal

eld theory

3) Write a note on colours in coordination compounds

3+) Explain the factors aecting the staility of coordination

compound3) Write rief the applications of coordination compounds

HALOGEN DERIVATIVES O ALANES AND ARENES

1) What are al8yl halides o are they classied

2) Write (- names of the folloing compounds

i)

ii) 2Al

8112019 Chemistry Question 12sci (1)

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iii)

iv)

v)

vi) secutyl chloride

vii) neopentyl romide

viii) tutyl iodide

ix) isopropyl romide

3) o is ethyl romide prepared from

i) Ethyl alcohol ii) ethane iii) ethane

4)Write the preparation of isopropyl chloride using the folloing

reagents

i) -l3 ii) -l$ iii) l2 iv) l v) Dl2

$) o is group replaced y folloing functional rroups

i) OD ii) O iii) O iv) O2

) Write a note on

i) andmeyerBs reaction ii) Wurt= reaction iii) 6in8elstein reaction

iv) 6ittig reaction v) 6riedel raft reaction

+) (dentify and in the folloing

8112019 Chemistry Question 12sci (1)

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) Give the structures of the folloing compounds

i) 3romo2methyl pentane ii) 2romo3ethyl hexane iii) 1

holo utane

iv) pichloroen=ene v) 1lt1lt10richloroethane

5) student has performed an experiment in the laoratory e

mixed ater ith hexane and found to layers separated econd

time he mixed chloroform ith ater and he again found to

layers in the test tue Explain hich ill e upper layer and

hich one ill e loer layer in oth the experiments

17) onvert 1hloroutane into the folloing compounds

i) utane1ol ii) 1(odoutane iii) 3222 iv)

11) 6or each pair of compoundslt state hich compound is etter

2 sustrate

i) 2romoutanelt isopropyl romide ii) 1(odo2lt2dimethyl

propane or isopropyl iodide

12) hoose the memer that ill react faster from the folloing

pairs y 1 mechanism

13) -redict the expected product of sustitution reaction

i) isoutyl chloride mH sodium ethoxide

ii) nutyl chloride H sodium

iii) 1hloro propane H aC potassium hydroxide

iv) aniline H aD2gt l

14) Write the products

i) $22A2 H r L

ii) $A2 H r

8112019 Chemistry Question 12sci (1)

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iii)

iv)

v)

1$) (dentify the chiral and achiral molecules

i)

ii)

iii)

1) iscuss 2 mechanism of methyl romide using aCueous

FD ra energy prole diagram1+) Write the mechanism of the reaction hen tutyl chloride is

treated ith aCueous FD ith energy prole diagram

1) ierentiate eteen 1 and 2 mechanism

15) Explain the nature of ond in

i) 322 ii)

27) What are uses of

i) 0 ii) (odoform iii) hloroform iv) aron tetrachloride

21) l8yl halides are polar and miscile ith aterlt explain

22) Which one of the folloing is more easily hydrolysed y

aCueous FD

$l$ and $2l

23) rrange the folloing groups in descending order 2lt D3lt

D3lt DD and l

24) ssign or conguration to each of the folloing

structures

8112019 Chemistry Question 12sci (1)

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i)

ii)

iii)

iv)

DDlt -ED E0E

1) What are alcohols o are they classied

2) What are monohydric alcohols o are they classied

4) Write the structures of folloing alcohols

i) 1Ethylcyclohexanol ii) ex3en2ol iii)yclohex2en1ol

iv) -entane1lt4diol

v) 2lt4imethylhexane1lt3lt$triol

$) Explain the folloing

i) -ropan1ol has higher oiling point than nutane

ii) ampethanol is more solule in ater than -ropan1ol

) Write the mechanism of hydration of ethylene to ethyl alcohol

+) -ropan1ol can not e prepared y acid catalyst hydration of

propenelt then ho is propene converted into propan1ol

)5) o is propanone converted into

i) -ropan2ol ii) 2ampethyl propan2ol

17) o ill you otain utan2ol from

8112019 Chemistry Question 12sci (1)

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i) -ropanal ii) utan2one iii) ut2ene

11) o is propan1ol prepared from

i) -ropanal ii) -ropanoic acid

12) o is cyclopentanol prepared from

i) yclopentanone ii) yclopentene

14) Write the mechanism of acid catalysed dehydration of ethanol

to give ethane

1$) Write the structure of aldehyde lt caroxylic acid and ester

that yield folloing alcohol

1+) o ill you prepare

i) 2ampethylutane1ol from an al8ene

ii) cyclohexylmethanol from a Grignard reagent

iii) 1phenylethanol from acetaldehyde

1) o are folloing conversions rought aout

i) en=yl chloride to en=yl alcohol

ii) en=yl alcohol to en=oic acid

iii) 1Ethylcyclohexanol from yclohexanone

15) What are phenols o are they classied

27)21) Give the structures and (- names of isomeric phenols

represented y the molecular formula 17D

22) o is phenol prepared from

8112019 Chemistry Question 12sci (1)

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i) hloroen=ene ii) (sopropyl en=ene iii) en=ene sulphonic

acid iv) aniline

23 ) Explain the folloing

i) -henol is more acidic than phenol

ii) onitrophenol is more acidic than ocresol

iii) pnitrophenol is less volatile than onitrophenol

24) Explain the folloing reactions of phenol

i) FoleBs reaction ii) iemer0iemann reaction

2$) ame the reagents used to convert phenol intoi) picric acid ii) 2lt4lt0riromophenol iii) en=ene iv) ophenol

sulphonic acid

2) What is the action of folloing reagents on phenol i)

romine in 2 at lo temperature

ii) ilute nitric acid at room temperature iii) oncentrated

sulphuric acid at room temperature

2+) Give distinguish test eteen phenol and ethanol

2) What are ethers o are ethers classied

25) What is metamerism Give the structure and (- name of

metamers of 2ampethoxypropane

37) Write the mechanism for acidic dehydration of ethanol

31) o is diethyl ether prepared y continuous ethericationprocess Why is the process so called

32) o ill you prepared methoxyethane from

i) l8yl halide ii) ia=omethane

33) tate the important uses of i) -henol ii) diethyl ether

8112019 Chemistry Question 12sci (1)

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34) Write the mechanism of action of hydrogen romide on tert

utyl methyl ether

3$) Explain the folloing reactions of anisole

i) romination ii) itration iii) 6riedelrafts al8ylation iv)6riedelrafts acylation

3) Explainlt i) 0he OD group attached to aromatic ring in

phenols and ii) 0he al8oxy group in al8yl aryl ethers are ortholt

para directing and activate the aromatic ring toars electrophilic

sustitution

3+) Write the chemical eCuations for Williamson synthesis of 2

Ethoxy2methypentane starting from ethanol and 2ampethylpentan2ol

3) n organic compound ith the formula 417D3 shos

properties of ether and alcohol hen treated ith an excess of

r yields only one compound 1lt2 diromomethane Write

structural formula of ether and that of alcohol

ALDEHYDES ETONES AND CABO$YLIC

ACID

1) Write the structure and give (- names of the folloing

compounds

i) chloropropionaldehyde

ii) Rhydroxyutyraldehyde

iii) isoutyraldehyde

iv) Rmethylvaleraldehyde

8112019 Chemistry Question 12sci (1)

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v) isopropyl methyl 8etone

vi) diisopropyl 8etone

vii) mromoen=aldehyde

viii) dien=yl 8etone

ix) divinyl 8etone

x) allyl methyl 8etone

xi) ethyl phenyl 8etone

xii) nutyrophenone

2) Write the structure of folloing compounds

i) 4ampethyl3nitroen=ophenone ii) 2ampethyl4oxopentanal iii)

3Dxopentanoic acid iv) 4chloropropiophenone v) 3

ampethoxyutanal vi) 4ydroxycyclohaxane caraldehyde

3) o ill you prepare i) propiophenone from propanenitrile ii)

4chloroen=aldehyde from 4chlorotoluene iii)

yclohaxanecaraldehyde from cyclohexylmethanol iv) 4

methoxyacetophenone from anisole v) 4methylen=aldehydefrom toluene

4) rrange the folloing compounds in the increasing order of

their oiling points

i) dimethyl etherlt ethyl alcohollt propanelt acetaldehyde

ii) acetonelt npropyl alcohollt ethyl methyl alcohol and nutane

$) What is the action of hydrogen cyanide in asic medium on i)utanone ii) 2lt4dichloroen=aldehyde

) What is the action of folloing compounds on cyclohexanone in

presence of dry hydrogen chloride

i) ethyl alcohol ii) ethylene glycol

8112019 Chemistry Question 12sci (1)

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+) Write the structure of product in the folloing reactions

i) 322D3

ii) $2D3

) Write the structures of caronyl compounds and ammonia

derivatives that comine to give folloing imines

i)

ii)

iii)

iv)v)

vi)

5) Write the chemical eCuations for aldol condensation or

anni==aro reaction that folloing compounds undergo

i) -ropanal ii) 2ampethylpropanal iii) -entanal iv) 3

ampethylutanal v) cetophenonevi) pampethoxyen=aldehyde vii) 2ampethylcyclohaxanone viii)

chloral ix) yclopentanone

x) -henyl acetaldehyde xi) 1-henylpropan1one

17) Write the structure of the maKor product of the folloing

crossed aldol condensation

i) formaldehyde and propionaldehydeii) en=aldehyde ith acetone

11) (dentify the compounds SBlt SB and SB in the folloing

reactions and rerite the complete eCuations

i)

8112019 Chemistry Question 12sci (1)

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ii)

12)o ill you eect folloing tostep conversions

i) -ropanal into utanone ii) utanone into ut2ene iii)

en=ene into mromoacetophenone iv) ex3yne into exan

3one v) en=oic acid into mnitroen=ylalcohol

13) o ill you convert en=aldehyde into folloing compounds

ampore than one steps may e reCuired

i) en=ophenone ii) en=oic acid iii) 3-henylpropan1ol iv)hydroxyphenylacetic acid

14) Give a chemical test to distinguish eteen folloing pairs of

compounds

i) Ethanal and propanone ii) -rpopanal and propanone iii)

-entane2one and pentane3one

1$) Write the structure and (- names of folloing caroxylicacids

i) ltRdimethylutanoic acid ii) Rphenylutyric acid iii) 1038389

chloromethylvaleric acid

Page 4: Chemistry Question 12sci (1)

8112019 Chemistry Question 12sci (1)

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() ioium is found to crystalli=es ith cc structure and found to

have density of $$ggtcm3 etermine the atomic radius of

nioium if its atomic mass is 532) opper crystalli=es into 6 structure and the unit cell has

length of edge 31 17 cm alculate the density of copper if

the molar mass of u is 3$ggtmol

3) ilver crystalli=es in 6 structure ith edge length of unit celllt

47+ 17 cm and if density of metallic silver is17$ggtcm3

alculate the molecular mass of silver

4) etermine the density of cesium chloride hich crystalli=es in type of structure ith the edge length 4121pm 0he atomic

masses of cesium and chloride are 133 and 3$$ respectively

$) nit cell of iron crystal has edge length of 2pm and density

of +ggtcm3etermine the type of crystal lattice 6eA$)

) n atom crystalli=es in 6 crystal lattice and a density of

17ggtcm3 ith unit cell edge length of 177pm alculate numer of

atoms present in 1g of crystal

+) n element and constitute type crystalline structure

Element occupies ody center position and is at the corners of

cue What is the formula of the compound What are the

coordination numers of and

) toms and form 6 crystalline structure tom is

present at the corners of the cue and atom is at the faces of

the cue What is the formula of the compound

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SOLUTION AND COLLIGATIVE PROPERTY

THEORY

1) ene the terms solutionlt solutelt solvent and concentration

2) What are the dierent types of solution

3) Explain dierent ays in hich concentration of a solution can

e expressed

4)ene i) percentage y eightlt ii) mole fractionlt iii) ampolalitylt iv)

ampolarity

$)ene the term colligative property Give examples

) tate and explain enryBs la

+) Explain solid solution

) What is a vapour pressure of liCuid

5) Explain the eect of temperature on the vapour pressure of

liCuid

17) What are the factors hich aects vapour pressure

11) What is loering of vapour pressure of a solution

12) What is relative loering of vapour pressure

8112019 Chemistry Question 12sci (1)

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13) tate aoultBs la and otain expression for loering of

vapour pressure hen nonvolatile solute is dissolved

14) erive the relationship eteen relative loering of vapour

pressure and molar mass of solute1$) What is oiling point of liCuid

1) What is elevation of oiling point

1+) What is molal elevation constant oes it depend on the

nature of the solute

1) erive the relation eteen elevation of oiling point and

molar mass of the solute15) ene free=ing point of liCuid

27) What causes depression in free=ing point

21) ene molal depression constant

22) o molar mass of a nonvolatile solute is related to the

depression in free=ing point erive an eCuation

23) What is osmosis

24) ene semipermeale memrane and osmotic pressure

2$) ene the terms i) (sotonic solution ii) ypertonic solution

iii) ypotonic solution

2) tate i) vant ooyles la ii) vant oharles la

2+) erive vant o eCuation for osmotic pressure of a solution

2) o molar mass of a solute is determined from osmotic

pressure measurements

25) Explain anormal osmotic pressure

37) tate vant ovogadroBs la

8112019 Chemistry Question 12sci (1)

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31) Explain

i) normal molecular masses

ii) vant o factor

32) erive the eCuations

i) A

ii) A

PROBLEMS

1) 342g of glucose is dissolved in 477g of ater alculate

percentage y mass of glucose solution

2) solution is prepared y dissolving certain amount of solute in

$77g of ater 0he percentage y mass of a solute in solution is

23 alculate mass of solute

3)4cm3 of methyl alcohol is dissolved in 2$2g of ater

alculatelt i) percentage y mass of methyl alcohol ii) ampole

fraction of methyl alcohol and ater Given density of methyl

alcohol A 7+5$2ggtcm3 and A12lt A1 and DA1)

4) 12cm3 of en=ene is dissolved in 1cm3 of xylene alculate

y volume of en=ene

$) alculate mole fraction of l in solution of l containing

24 of l y massA1lt lA3$$)

) alculate mole fraction of solute in its 2 molal aCueous

solution

8112019 Chemistry Question 12sci (1)

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+) alculate the mole fractionlt molality and molarity of D3 in a

solution containing 122 D3 Given density of

D3A173ggtcm3lt A1lt A14lt DA1

) ulphuric acid is 5$ y mass alculate mole fraction andmolarity of 2D4 of density 151ggtcm3

5) Cueous solution of aD is mar8ed 17gt) 0he density of

the solution is 17+7ggtcm3

alculatelt

i) molarity ii) molality and iii) mole fraction of aD and ater

aA23lt A1 and DA1

17) attery acid is 422amp aCueous 2D4 solutionlt and has density

of 121ggtcm3 What is the molality of 2D4 A1lt A32lt DA1

11) 0he vapour pressure of 21 solution of a nonelectrolyte in

ater at 177 is +$$mm g alculate the molar mass of the

solute

12) 0he vapour pressure of ater at 27 is 1+mm g alculate

the vapour pressure of a solution containing 2g of

urea2D2) in $7g of ater A14lt A12lt A1

13) (n an experimentlt 174g of mannitol ere dissolved in 177g

of ater 0he vapour pressure of ater as loered y 7375mm

g from 1+$3$mm g alculate the molar mass of mannitol

14) solution containing 7$12g of naphthalene molar mass A

121+ggtmol) in $7g of l4 gives a oiling point elevation of

7472F While a solution of 721g of un8non solute in the

same mass of the solvent gives a oiling point elevation of 74+F

6ind the molar mass of the un8non solute

F for l4A $73F 8g mol1 of solvent)

8112019 Chemistry Question 12sci (1)

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1$) alculate the mass in grams of an impurity of molar mass

177gmol1 hich ould e reCuired to raise the oiling point of

$7g of chloroform y737F

F for chloroformA 33F 8g mol

1

)1) oiling point of a solvent is 72 When 7415g of the solute

of molar mass 2$24g mol1 as dissolved in +$g of the solventlt

the oiling point of the solution as found to e 72$ 6ind

the molal elevation constant

1+) 7ml of glacial acetic acid ith density 17gm 1 is

dissolved in 18g ater and the solution fro=e at 7727$

alculate vant o factor and F f for ater is1F 8g mol1

1) enryBs la constant for soluility of methane in en=ene is

42+ 17$mm g at constant temperature alculate the

soluility of methane at +7mm g pressure at same

temperature

CHEMICAL THERMODYNAMICS AND ENERGIES

Theory

1)ene the terms systemlt surroundinglt open systemlt close

systemlt isolated systemlt exothermic reactionslt endothermic

reactionslt extensive properties and intensive properties

2) Explain the term state function Give to examples of state

functions and to example of path function

3) Explain thermodynamics eCuilirium

4) istinguish eteen isothermal and adiaatic process

$) What is a reversile process What are its features

) ho that pressure times volume is eCual to or8

8112019 Chemistry Question 12sci (1)

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+) erive the expression for or8 hen a gas expands against

constant external pressure

) lassify the folloing reactions according to or8 done y the

systemlt on the system and no or8 done if pressure is constanta) 2g) H l2g) 2lg)

) 3D2g) 2D3g)

c) 2D2g) D2g)H 2D3g)

d) ampgD3s) H ampgDs) D2g)

e) 4D3s) H 2Dg) 22Dg)

5) What is the dierence dierence eteen and What is

the sign of for exothermic and endothermic reactions nder

hat circumstances

17) What are the sign convention for C and W

11) Explain the concept of maximum or8

12) free expansion of a gas results into no or8 Explain

13) erive the expression for maximum or8

14) ene enthalpy t constant pressure sho that A

1$) (t is di9cult to calculate lt hoever can e easily

determined Why Explain giving examples

1) tate rst la of thermodynamics Iustify its mathematical

eCuation

1+) Dtain the relationship eteen and for a chemical

reaction

1) What is the expression for or8 done in a chemical reaction

Explain the meaning of each term

8112019 Chemistry Question 12sci (1)

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8112019 Chemistry Question 12sci (1)

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a) dissolution of sugar in hot coee

) separation of r and Fr from their mixture

c) spreading of fragrance hen a ottle of perfume is opened

d) Jo of heat from cold oKect to hot oKect

e) heat transfer from ice to room at 2$

37) ene entropy Give its units What does entropy measures

31)Explain ho entropy changes in the folloing processes

a) free=ing of liCuid

) sulimation of solid

c) dissolving of ater in sugar

d) condensation of vapour

32) Which memer of the folloing pairs have larger entropy

Why

a) D2s) or D2g)

) 3Dl) or 2$D2$l)

c) Dg) or 2D4g)

d) eg) or Frg)

e) as) or als)

33) Why is it more convenience to predict spontaneity of reaction

in terms of Gsys rather than total34) ene Gis energy and change in Gis energy What are

the units of Gis energy

3$) tate second la of thermodynamics in terms of entropy and

express it mathematically

8112019 Chemistry Question 12sci (1)

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3) tate third la of thermodynamics What is its usefulness

3+) Why is it impossile for any sustance to have an asolute

entropy =ero at temperature greater than 7F

3) (t is impossile for a reaction to e spontaneous yetexothermic Explain ith example

35) (s it possile for a reaction to e nonspontaneous yet

exothermic Explain ith example

47) -redict the sign of in the folloing process Give reasons

for your anser

a) 2D4g) 2D2g)) 6e2D3s) H 32g) 26es) H 32Dg)

c) 2g) H 32g) 23g)

d) ampgD3s) 23g)

e) D2g) D2s)

f) l2g) 2lg)

41) What can e said aout the spontaneity of reactions hen

a) and are oth positive

) and oth are negative

c) is positive and is negative

d) is negative and is positive

42) (dentify hich memer of the folloing pairs has largerentropy Why

a) eg) in a volume of 1 or eg) in a volume of $ oth at 2$

) D2g) at 1atm or D2g) at 17atm oth at the same temperature

8112019 Chemistry Question 12sci (1)

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c) 2$Dl) or 2$Dg)

d) $ moles of e or 2 moles of e

43) What are the signs of for the folloing reaction

Explain ith reasons

2g) 2g)

44) erive the relationship eteen G and total

4$) Iustify the inclusion of Crev and 0 in the denition of entropylt

A Crevgt 0

4) 0he increase in entropy of a system alone does not guarantee

the spontaneity of a process Explain

4+) 0he criterion of spontaneity in terms of Gis energy is the

same as that laid don y second la of thermodynamic o

PROBLEMS

1) 0hree moles of an ideal gas are expanded isothermally from a

volume of 377cm3 to 2$ at 377F against a pressure of 15atm

alculate the or8 done in atm and Koules2) Dne mole of an ideal gas is compressed from $77cm3 against a

constant pressure of 121 17$-a 0he or8 involved in the

process is 3$7I alculate the nal volume

3) alculate the maximum or8 hen 24g of oxygen are

expanded isothermally and reversily from a pressure of 1

17$-a to 1778-a at 25F

4) 0hree moles of an ideal gas are compressed isothermally andreversily to a volume of 2 0he or8 done is 2538I at 22

alculate the initial volume of a gas

8112019 Chemistry Question 12sci (1)

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$) 2 172 8g of nitrogen is expanded isothermally and

reversily at 377F from 1$1$ 17$ m 2 hen the or8 done is

found to e 1+338 I 6ind the nal pressure

) sample of a gas asors 47778I of heata) if volume remains constantlt hat is

) uppose that in addition to asorption of heat y the samplelt

the surrounding does 27778I of or8 on the samplelt hat is

c) uppose that as the original sample asors heatlt it expands

against atmospheric pressure and does 778 I of or8 on its

surroundings What is

+) alculate the or8 done in each of the folloing reactions

tate hether or8 is done on or y the system

a) 0he oxidation of one mole of D2 at $7

2D2g) H D2g) 2D3g)

) decomposition of 2 moles of 4D3 at 177

4D3s) 2Dg) H 22Dg)

) 0he enthalpy change for the reaction

24g) H 2g) 2g) is 27I hen 177m of ethylene and

177m of 2 react at 1atm pressure alculate the pressure

volume or8 and

5) alculate standard enthalpy of the reaction

6e2D3s) H 3Dg) 26es) H 3D2g) from the folloing data

f 76e2D3)A2428Imol1ltf 7D)A117$8Imol1lt

f 7D2)A353$8Imol1

8112019 Chemistry Question 12sci (1)

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8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 1738

Electro chemitry

Theory

1ene the terms resistivitylt conductivity and molar

conductivity Give its ( units

2Explain the terms conductivity and molar conductivity o are

they interrelated

3Why does conductivity of s solution decrease on dilution of a

solution

4o does molar conductivity of an electrolyte vary ith

concentration

$o does the variation in molar conductivity of an electrolyte

ith concentration diers for strong and ea8 electrolytes

Explain the dierent ehaviour of strong and ea8 electrolytes

toards the variation of conductivity ith concentration

+tate and explain Fohlrausch la of independent migration of

ions o it is useful to determine the molar conductivity of ea8

electrolytes at =ero concentration

o is the molar conductivity of strong electrolytes at =ero

concentration determined y graphical method Why is this

method not useful for ea8 electrolytes

5What is cell constant What is its unit o is it determined

17ene anode and cathode

11 Why is cathode in electrolytic cell considered to e negative

and anode positive

12 -redict the half cell reactions that occur hen fused Fl is

electroly=ed in a cell ith inert electrodes What is the overall cell

reaction

8112019 Chemistry Question 12sci (1)

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13 tate 6aradayBs las of electrolysis

14o ill you calculate the numer of moles of electrons

actually passed and mass of the sustance produced during

electrolysis of a salt solution using reaction stoichiometry1$o many electrons ill have a total charge of 1 coulom

1 o many faradayBs ould e reCuired to plate out 177 mole

of free metal from the folloing cations

a) ampg2H

) r3H

c) -2H

d) uH

1+ ene coulom and faraday

1 escrie the electrolysis of molten al using inert

electrodes

15 What is the dierence eteen electrolytic cell and voltaic

cell

27 Why is anode in galvanic cell considered to e negative and

cathode positive electrode

21 8etch the cell for the electrolysis of molten al (ndicate

cathodelt anode and their signs ho the Jo of electrons and

ions

22 What is salt ridge What are its functions in galvanic cell

23 What are the conventions used to rite cell diagramcell

formula)

24 escrie the construction of aniel cell Write electrode half

reactions and net cell reaction in aniel cell

8112019 Chemistry Question 12sci (1)

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2$ escrie the folloing types of electrodes giving one

examplelt ith reference to formulationlt electrode reaction and

ernst eCuation for electrode potential

a) metalsparingly salt electrode) gas electrode

2 What is redox electrode Give one example ith formulationlt

electrode reaction and ernst eCuation for electrode potential

2+ ene the terms oxidation potentiallt reduction potential and

cell potential

2 What conditions are reCuired for a cell potential to e calledstandard cell potential

25 6ormulate a cell for each of the folloing electrode reactions

a) n2H aC) H 2gl s) L n4H aC) H 2gs) H2l aC)

) ampg s) H r2l) L ampg2H aC) H 2r aC)

37 6ormulate a cell from the folloing electrode reactions

a) l2g) H 2e L 2l aC)

) 2( aC) L (2s) H 2e

31 What are standard electrode potential and standard emf of

the galvanic cell

32 Write ernst eCuation and explain the terms involved in it

What part of the eCuation represents the correction factor for

nonstandard state conditions

33 Write ernst eCuation for the folloing reactions

a) rs) H 36e3H aC) L r3H aC) H 36e2H aC)

) l3H aC) H 3e L l s)

8112019 Chemistry Question 12sci (1)

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34 onsider the folloing E7 values and half reactions

(2s) H 2e L 2( aC) E7A7$3$M

u2H aC) H 2e L u s) E7A733+M

d2H aC) H 2e L ds) E7A77473

a) Which of the metals or nonmetals or ions is the strongest

oxidi=ing agent and hich is the strongest reducing agent

) 0he half reactions can e used to construct three galvanic

cells Which ill have the highest cell potential

3$ -redict hether

a) gH can oxidi=e - to -2H under standard state condition

) E7gA7+55M and E7

-A712M

3 -redict hether the folloing reactions occur under standard

state conditions

a) Dxidation of gs) y l2g) E7gA7Mlt E7

l2A13M

) eduction of 6e

3H

to 6e

2H

y us) E

7

6e3Hlt 6e2H A 7++MltE7uA14M

3+ 8etch and descrie the operation of

a) dry cell

) 2D2 fuel cell

3 What are the advantages and disadvantages of fuel cells

35 8etch lead storage cell

47 Write electrode reaction and overall cell reaction during the

operation of lead storage cell

41 Write electrode reaction and overall cell reaction hen lead

accumulator ehaves as an electrolytic cell

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42 o can ernst eCuation e used to sho that electrode

potential is eCual to the standard electrode potential y putting

approximate values in ernst eCuation se u2HNd half cell for

illustration

43 o are G7lt E7cell and eCuilirium constant related for a

particular reaction

44 Why is eCuilirium constant related to E7cell and not Ecell

4$ G7 for a redox reaction depends on the numer of electrons

transferred Explain

4 o does the eCuiliriumlt G7An6E7 explain that an

electrical potential is an intensive property

4+ Write shorthand notation for the cell for each of the folloing

reactions

a) u2H aC) H 2gs) H 2r L u s) H 2gr s)

) n2H aC) is oxidi=ed y r2 l)

4 rrange the folloing reducing agents in order of increasing

strength under standard state conditions 0he standard potentialsfor the reduction half reactions are given

gH aC) 7M)lt l3H aC) 1M)lt 62g) 2+M)lt l2g) 13M)lt

(2s) 7$4M)lt d2H aC) 74M)

45 rrange the folloing oxidi=ing agents in order of increasing

strength under standard state conditions 0he standard potentials

for the reduction half reactions are given

ls) 1M)lt l aC) 13M)lt us) 734M)lt 6es)744M)lt r

aC) 175M)lt is) 72M)

$7 Which species in each of the folloing pairs is etter oxidi=ing

agent under standard state conditions standard potential are

given) Give reasons for your anser

8112019 Chemistry Question 12sci (1)

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a) r2l) 175M) or u3H 14M)

) H aC) or gH aC) 7M)

c) -2H aC) 713M) or o2H 72M)

d) l2 g) 13M) or r3H 7+4M)

$1 Which species in each of the folloing pairs is etter reducing

agent under standard conditions E7 values are given Give

reasons for your anser

a) Fs) 2353M) or ampgs) 23M)

) o2H aC) 11M) or (n s) 714M)

c) e3H aC) 11M) or 0i2H73+M)

d) gl) 7M) or is) 723M)

PROBLEMS

1 conductivity cell lled ith 771amp Fl given at 2$o the

resistance of 74ohms 0he conductivity of Fl at 2$

o

is 7777

CHEMISTRY

d f O DF EEampE0

1) What are dloc8 elements

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2) What are floc8 elements

3) Explain the meaning of

i) 0ransition series ii) (nner transition element

4) Explain the position of the folloing in periodic tale

i) dloc8 elements ii) anthanoids iii) ctinoids

$) Explain the oxidation state of 1st ro elements of transition

series

) Explain the oxidation states of lanthanoids and actinoids

+) Why do lanthanoids form coloured compounds ) Explainlt most of the transition metal compounds are

remar8aly coloured

5) Why chromium has electronic conguration 3d$ 4s1 and not 3d4

4s2

17) Why does copper sho anormal electronic conguration

11) Explainlt the trends in atomic and ionic si=es of lanthanoidsand also of 1st ro elements of transition series

12) What are actinoids

13) What are transuranic elements Write their name

14) Why transition elements sho tendency to form large numer

of complexes

1$) Explain the compounds of copper ((() are coloured ut thoseof =inc are colourless

1) o is potassium dichromate prepared from chrome ion

1+) Write the preparationlt properties and use of potassium

permanganate

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1) Explainlt hy -t(M) complexes are generally octahedral hile

-t(() complexes are sCuare planar

15) ierentiate eteen lanthanoids and actinoids

27) What are chemical tins Give examples

21) Explain hy Gd3H is colourless

COORDINATION COMPOUNDS

1) What is the dierence eteen doule salt and coordinationcompounds

2) Explainlt hy 6e4)2 D4)22D) is a salt ut F 4P6e)Q is a

complex compound

3) Write the formula of the folloing complexes

i) alcium hexa cyano ferrate (()

ii) iammine dichloro platinum

iii) is ethylene diammine) dichloro iridium ((() ion

iv) -entamine caronato chromium ((() D(E

v) 0risethylene diammine ) coalt((() sulphate

vi) iamine ethylene diammine nic8el (() acetate

4) Write the rules hich are applied hile riting the formulas of

coordination compounds

$) ene the terms

i) entral metal atomgtion

ii) igand

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iii) oordination compound

iv) oordination sphere

v) oordination numer

vi) oordination polyhedral

vii) omoleptic and heteroleptic complexes

viii) harge on the complexes

ix) oordination entity

) Write (- name of the folloing complexes

i) Pr2D)4 l2QD3

ii) P-ten)l4Q

iii) F 2Pi)4Q

iv) sP6el4Q

v) rl3-y)3

vi) F 3Po2D4)3Q

vii) Por2en)2Q

viii) P-tl4Q2

ix) Po2D))en)2Q2H

x) F 3Pl2D4)3Q

+) Explain the importance of principles of additive nomenclature

) (dentify the folloing ions y a simple test forming complex

compound

i) u2H ii) i2H iii) 6e3H iv) o2H

8112019 Chemistry Question 12sci (1)

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5) Dn the asis of WernerBs theory explainlt hy coalt amine

complexlt ol343 hen treated ith gD3 solution

precipitates only one ion even though there are three ions

17) alculate the eective atomic numer E) of the centralmetal atom in the folloing compounds

i) F 3P6e)Q ii) rD)

11) Write the postulates of WernerBs theory

12) Explain the onding in ol333 and ol3$3

13) Explain stereoisomerism in metal complexes ith coordination

numer 4 and 14) Why the tetrahedral complexes do not exhiit geometrical

isomerism

1$) ra cis and trans geometrical isomers of

i) dichlororomo iodo palladium (() ion

ii) P-t(()3)2l2Q

iii) Po((()3)l3Q

iv) Po((()3)42D)lQ2H

1) ra all possile geometrical isomers of P-t(M)

3)2-y)2l2Q2H ion

1+) Write oxidation statelt coordination numer and electronic

conguration of the metal atom in the folloing complexes

i) rl3-y)3 ii) F 4Pampn)Q

1) lassify the folloing ligands into monodentatelt polydentate

and amidentate

i) 3 ii) iii) iv) v) D2 vi) ethylene diammine

vii) oxalate

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viii) triaminotriethylamine

15) ol3$32D is a pin8 solidlt the solution of this salt is also

pin8 and formed 3mol of gl ith silver nitrate solution Dn

heating pin8 solidlt it loses one ater molecule and forms purplesolid having same ratio of o3l as that of pin8 solid 0he

purple solid hen dissolved in ater and treated ith forms 1 mol

of gl ra the structure and name of the pin8 and purple

solids

27) ame the octahedral complex ions

i) Po2D4) en)2QH ii) transPr)4 3)2Q

21) ra the structures of the folloing complexes

i) Pol4Q2 ii) Pampn3)Q2H iii) P-tlQ iv) iD)4 v) Pi)4Q2

22) (n an octahedral crystal eldlt dra the gure to sho splitting

of dorital

23) What are ea8 eld and strong eld ligands What is spectro

chemical series

24) Pi)4Q2 is diamagnetic hile Pr3)Q3H is paramagnetltexplain

2$) Dn the asis of valence ond theory explain the nature of

onding in the folloing complexes

i) Po6Q3 ii) Po2D4)3Q3

2) lue coloured copper sulphate solution gave folloing

experimental results Explain the same

i) With aCueous potassium chloride it gave right green solution

ii) With aCueous potassium Juoride it gave a green precipitate

2+) ra the structures of optically active isomers of Poen)3Q3H

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2) ra the geometrical and optical isomers of

i) Pol2en)2QH ii) Polen)23)Q2H

25) What is lin8age isomerism Explain ith an example

37) What are hydrate isomers Explain ith examples

31) Explain the structure of

i) upraammonium sulphate ii) Po3)Q3H

32) What are the limitations of valence ond theory

33) Explain the magnetic properties of coordination compounds

34) Write the salient features of crystal eld theory What are itslimitations

3$) Explain the octahedral geometry of complexes using crystal

eld theory

3) Write a note on colours in coordination compounds

3+) Explain the factors aecting the staility of coordination

compound3) Write rief the applications of coordination compounds

HALOGEN DERIVATIVES O ALANES AND ARENES

1) What are al8yl halides o are they classied

2) Write (- names of the folloing compounds

i)

ii) 2Al

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iii)

iv)

v)

vi) secutyl chloride

vii) neopentyl romide

viii) tutyl iodide

ix) isopropyl romide

3) o is ethyl romide prepared from

i) Ethyl alcohol ii) ethane iii) ethane

4)Write the preparation of isopropyl chloride using the folloing

reagents

i) -l3 ii) -l$ iii) l2 iv) l v) Dl2

$) o is group replaced y folloing functional rroups

i) OD ii) O iii) O iv) O2

) Write a note on

i) andmeyerBs reaction ii) Wurt= reaction iii) 6in8elstein reaction

iv) 6ittig reaction v) 6riedel raft reaction

+) (dentify and in the folloing

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) Give the structures of the folloing compounds

i) 3romo2methyl pentane ii) 2romo3ethyl hexane iii) 1

holo utane

iv) pichloroen=ene v) 1lt1lt10richloroethane

5) student has performed an experiment in the laoratory e

mixed ater ith hexane and found to layers separated econd

time he mixed chloroform ith ater and he again found to

layers in the test tue Explain hich ill e upper layer and

hich one ill e loer layer in oth the experiments

17) onvert 1hloroutane into the folloing compounds

i) utane1ol ii) 1(odoutane iii) 3222 iv)

11) 6or each pair of compoundslt state hich compound is etter

2 sustrate

i) 2romoutanelt isopropyl romide ii) 1(odo2lt2dimethyl

propane or isopropyl iodide

12) hoose the memer that ill react faster from the folloing

pairs y 1 mechanism

13) -redict the expected product of sustitution reaction

i) isoutyl chloride mH sodium ethoxide

ii) nutyl chloride H sodium

iii) 1hloro propane H aC potassium hydroxide

iv) aniline H aD2gt l

14) Write the products

i) $22A2 H r L

ii) $A2 H r

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iii)

iv)

v)

1$) (dentify the chiral and achiral molecules

i)

ii)

iii)

1) iscuss 2 mechanism of methyl romide using aCueous

FD ra energy prole diagram1+) Write the mechanism of the reaction hen tutyl chloride is

treated ith aCueous FD ith energy prole diagram

1) ierentiate eteen 1 and 2 mechanism

15) Explain the nature of ond in

i) 322 ii)

27) What are uses of

i) 0 ii) (odoform iii) hloroform iv) aron tetrachloride

21) l8yl halides are polar and miscile ith aterlt explain

22) Which one of the folloing is more easily hydrolysed y

aCueous FD

$l$ and $2l

23) rrange the folloing groups in descending order 2lt D3lt

D3lt DD and l

24) ssign or conguration to each of the folloing

structures

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i)

ii)

iii)

iv)

DDlt -ED E0E

1) What are alcohols o are they classied

2) What are monohydric alcohols o are they classied

4) Write the structures of folloing alcohols

i) 1Ethylcyclohexanol ii) ex3en2ol iii)yclohex2en1ol

iv) -entane1lt4diol

v) 2lt4imethylhexane1lt3lt$triol

$) Explain the folloing

i) -ropan1ol has higher oiling point than nutane

ii) ampethanol is more solule in ater than -ropan1ol

) Write the mechanism of hydration of ethylene to ethyl alcohol

+) -ropan1ol can not e prepared y acid catalyst hydration of

propenelt then ho is propene converted into propan1ol

)5) o is propanone converted into

i) -ropan2ol ii) 2ampethyl propan2ol

17) o ill you otain utan2ol from

8112019 Chemistry Question 12sci (1)

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i) -ropanal ii) utan2one iii) ut2ene

11) o is propan1ol prepared from

i) -ropanal ii) -ropanoic acid

12) o is cyclopentanol prepared from

i) yclopentanone ii) yclopentene

14) Write the mechanism of acid catalysed dehydration of ethanol

to give ethane

1$) Write the structure of aldehyde lt caroxylic acid and ester

that yield folloing alcohol

1+) o ill you prepare

i) 2ampethylutane1ol from an al8ene

ii) cyclohexylmethanol from a Grignard reagent

iii) 1phenylethanol from acetaldehyde

1) o are folloing conversions rought aout

i) en=yl chloride to en=yl alcohol

ii) en=yl alcohol to en=oic acid

iii) 1Ethylcyclohexanol from yclohexanone

15) What are phenols o are they classied

27)21) Give the structures and (- names of isomeric phenols

represented y the molecular formula 17D

22) o is phenol prepared from

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i) hloroen=ene ii) (sopropyl en=ene iii) en=ene sulphonic

acid iv) aniline

23 ) Explain the folloing

i) -henol is more acidic than phenol

ii) onitrophenol is more acidic than ocresol

iii) pnitrophenol is less volatile than onitrophenol

24) Explain the folloing reactions of phenol

i) FoleBs reaction ii) iemer0iemann reaction

2$) ame the reagents used to convert phenol intoi) picric acid ii) 2lt4lt0riromophenol iii) en=ene iv) ophenol

sulphonic acid

2) What is the action of folloing reagents on phenol i)

romine in 2 at lo temperature

ii) ilute nitric acid at room temperature iii) oncentrated

sulphuric acid at room temperature

2+) Give distinguish test eteen phenol and ethanol

2) What are ethers o are ethers classied

25) What is metamerism Give the structure and (- name of

metamers of 2ampethoxypropane

37) Write the mechanism for acidic dehydration of ethanol

31) o is diethyl ether prepared y continuous ethericationprocess Why is the process so called

32) o ill you prepared methoxyethane from

i) l8yl halide ii) ia=omethane

33) tate the important uses of i) -henol ii) diethyl ether

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34) Write the mechanism of action of hydrogen romide on tert

utyl methyl ether

3$) Explain the folloing reactions of anisole

i) romination ii) itration iii) 6riedelrafts al8ylation iv)6riedelrafts acylation

3) Explainlt i) 0he OD group attached to aromatic ring in

phenols and ii) 0he al8oxy group in al8yl aryl ethers are ortholt

para directing and activate the aromatic ring toars electrophilic

sustitution

3+) Write the chemical eCuations for Williamson synthesis of 2

Ethoxy2methypentane starting from ethanol and 2ampethylpentan2ol

3) n organic compound ith the formula 417D3 shos

properties of ether and alcohol hen treated ith an excess of

r yields only one compound 1lt2 diromomethane Write

structural formula of ether and that of alcohol

ALDEHYDES ETONES AND CABO$YLIC

ACID

1) Write the structure and give (- names of the folloing

compounds

i) chloropropionaldehyde

ii) Rhydroxyutyraldehyde

iii) isoutyraldehyde

iv) Rmethylvaleraldehyde

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v) isopropyl methyl 8etone

vi) diisopropyl 8etone

vii) mromoen=aldehyde

viii) dien=yl 8etone

ix) divinyl 8etone

x) allyl methyl 8etone

xi) ethyl phenyl 8etone

xii) nutyrophenone

2) Write the structure of folloing compounds

i) 4ampethyl3nitroen=ophenone ii) 2ampethyl4oxopentanal iii)

3Dxopentanoic acid iv) 4chloropropiophenone v) 3

ampethoxyutanal vi) 4ydroxycyclohaxane caraldehyde

3) o ill you prepare i) propiophenone from propanenitrile ii)

4chloroen=aldehyde from 4chlorotoluene iii)

yclohaxanecaraldehyde from cyclohexylmethanol iv) 4

methoxyacetophenone from anisole v) 4methylen=aldehydefrom toluene

4) rrange the folloing compounds in the increasing order of

their oiling points

i) dimethyl etherlt ethyl alcohollt propanelt acetaldehyde

ii) acetonelt npropyl alcohollt ethyl methyl alcohol and nutane

$) What is the action of hydrogen cyanide in asic medium on i)utanone ii) 2lt4dichloroen=aldehyde

) What is the action of folloing compounds on cyclohexanone in

presence of dry hydrogen chloride

i) ethyl alcohol ii) ethylene glycol

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+) Write the structure of product in the folloing reactions

i) 322D3

ii) $2D3

) Write the structures of caronyl compounds and ammonia

derivatives that comine to give folloing imines

i)

ii)

iii)

iv)v)

vi)

5) Write the chemical eCuations for aldol condensation or

anni==aro reaction that folloing compounds undergo

i) -ropanal ii) 2ampethylpropanal iii) -entanal iv) 3

ampethylutanal v) cetophenonevi) pampethoxyen=aldehyde vii) 2ampethylcyclohaxanone viii)

chloral ix) yclopentanone

x) -henyl acetaldehyde xi) 1-henylpropan1one

17) Write the structure of the maKor product of the folloing

crossed aldol condensation

i) formaldehyde and propionaldehydeii) en=aldehyde ith acetone

11) (dentify the compounds SBlt SB and SB in the folloing

reactions and rerite the complete eCuations

i)

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ii)

12)o ill you eect folloing tostep conversions

i) -ropanal into utanone ii) utanone into ut2ene iii)

en=ene into mromoacetophenone iv) ex3yne into exan

3one v) en=oic acid into mnitroen=ylalcohol

13) o ill you convert en=aldehyde into folloing compounds

ampore than one steps may e reCuired

i) en=ophenone ii) en=oic acid iii) 3-henylpropan1ol iv)hydroxyphenylacetic acid

14) Give a chemical test to distinguish eteen folloing pairs of

compounds

i) Ethanal and propanone ii) -rpopanal and propanone iii)

-entane2one and pentane3one

1$) Write the structure and (- names of folloing caroxylicacids

i) ltRdimethylutanoic acid ii) Rphenylutyric acid iii) 1038389

chloromethylvaleric acid

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SOLUTION AND COLLIGATIVE PROPERTY

THEORY

1) ene the terms solutionlt solutelt solvent and concentration

2) What are the dierent types of solution

3) Explain dierent ays in hich concentration of a solution can

e expressed

4)ene i) percentage y eightlt ii) mole fractionlt iii) ampolalitylt iv)

ampolarity

$)ene the term colligative property Give examples

) tate and explain enryBs la

+) Explain solid solution

) What is a vapour pressure of liCuid

5) Explain the eect of temperature on the vapour pressure of

liCuid

17) What are the factors hich aects vapour pressure

11) What is loering of vapour pressure of a solution

12) What is relative loering of vapour pressure

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13) tate aoultBs la and otain expression for loering of

vapour pressure hen nonvolatile solute is dissolved

14) erive the relationship eteen relative loering of vapour

pressure and molar mass of solute1$) What is oiling point of liCuid

1) What is elevation of oiling point

1+) What is molal elevation constant oes it depend on the

nature of the solute

1) erive the relation eteen elevation of oiling point and

molar mass of the solute15) ene free=ing point of liCuid

27) What causes depression in free=ing point

21) ene molal depression constant

22) o molar mass of a nonvolatile solute is related to the

depression in free=ing point erive an eCuation

23) What is osmosis

24) ene semipermeale memrane and osmotic pressure

2$) ene the terms i) (sotonic solution ii) ypertonic solution

iii) ypotonic solution

2) tate i) vant ooyles la ii) vant oharles la

2+) erive vant o eCuation for osmotic pressure of a solution

2) o molar mass of a solute is determined from osmotic

pressure measurements

25) Explain anormal osmotic pressure

37) tate vant ovogadroBs la

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31) Explain

i) normal molecular masses

ii) vant o factor

32) erive the eCuations

i) A

ii) A

PROBLEMS

1) 342g of glucose is dissolved in 477g of ater alculate

percentage y mass of glucose solution

2) solution is prepared y dissolving certain amount of solute in

$77g of ater 0he percentage y mass of a solute in solution is

23 alculate mass of solute

3)4cm3 of methyl alcohol is dissolved in 2$2g of ater

alculatelt i) percentage y mass of methyl alcohol ii) ampole

fraction of methyl alcohol and ater Given density of methyl

alcohol A 7+5$2ggtcm3 and A12lt A1 and DA1)

4) 12cm3 of en=ene is dissolved in 1cm3 of xylene alculate

y volume of en=ene

$) alculate mole fraction of l in solution of l containing

24 of l y massA1lt lA3$$)

) alculate mole fraction of solute in its 2 molal aCueous

solution

8112019 Chemistry Question 12sci (1)

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+) alculate the mole fractionlt molality and molarity of D3 in a

solution containing 122 D3 Given density of

D3A173ggtcm3lt A1lt A14lt DA1

) ulphuric acid is 5$ y mass alculate mole fraction andmolarity of 2D4 of density 151ggtcm3

5) Cueous solution of aD is mar8ed 17gt) 0he density of

the solution is 17+7ggtcm3

alculatelt

i) molarity ii) molality and iii) mole fraction of aD and ater

aA23lt A1 and DA1

17) attery acid is 422amp aCueous 2D4 solutionlt and has density

of 121ggtcm3 What is the molality of 2D4 A1lt A32lt DA1

11) 0he vapour pressure of 21 solution of a nonelectrolyte in

ater at 177 is +$$mm g alculate the molar mass of the

solute

12) 0he vapour pressure of ater at 27 is 1+mm g alculate

the vapour pressure of a solution containing 2g of

urea2D2) in $7g of ater A14lt A12lt A1

13) (n an experimentlt 174g of mannitol ere dissolved in 177g

of ater 0he vapour pressure of ater as loered y 7375mm

g from 1+$3$mm g alculate the molar mass of mannitol

14) solution containing 7$12g of naphthalene molar mass A

121+ggtmol) in $7g of l4 gives a oiling point elevation of

7472F While a solution of 721g of un8non solute in the

same mass of the solvent gives a oiling point elevation of 74+F

6ind the molar mass of the un8non solute

F for l4A $73F 8g mol1 of solvent)

8112019 Chemistry Question 12sci (1)

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1$) alculate the mass in grams of an impurity of molar mass

177gmol1 hich ould e reCuired to raise the oiling point of

$7g of chloroform y737F

F for chloroformA 33F 8g mol

1

)1) oiling point of a solvent is 72 When 7415g of the solute

of molar mass 2$24g mol1 as dissolved in +$g of the solventlt

the oiling point of the solution as found to e 72$ 6ind

the molal elevation constant

1+) 7ml of glacial acetic acid ith density 17gm 1 is

dissolved in 18g ater and the solution fro=e at 7727$

alculate vant o factor and F f for ater is1F 8g mol1

1) enryBs la constant for soluility of methane in en=ene is

42+ 17$mm g at constant temperature alculate the

soluility of methane at +7mm g pressure at same

temperature

CHEMICAL THERMODYNAMICS AND ENERGIES

Theory

1)ene the terms systemlt surroundinglt open systemlt close

systemlt isolated systemlt exothermic reactionslt endothermic

reactionslt extensive properties and intensive properties

2) Explain the term state function Give to examples of state

functions and to example of path function

3) Explain thermodynamics eCuilirium

4) istinguish eteen isothermal and adiaatic process

$) What is a reversile process What are its features

) ho that pressure times volume is eCual to or8

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+) erive the expression for or8 hen a gas expands against

constant external pressure

) lassify the folloing reactions according to or8 done y the

systemlt on the system and no or8 done if pressure is constanta) 2g) H l2g) 2lg)

) 3D2g) 2D3g)

c) 2D2g) D2g)H 2D3g)

d) ampgD3s) H ampgDs) D2g)

e) 4D3s) H 2Dg) 22Dg)

5) What is the dierence dierence eteen and What is

the sign of for exothermic and endothermic reactions nder

hat circumstances

17) What are the sign convention for C and W

11) Explain the concept of maximum or8

12) free expansion of a gas results into no or8 Explain

13) erive the expression for maximum or8

14) ene enthalpy t constant pressure sho that A

1$) (t is di9cult to calculate lt hoever can e easily

determined Why Explain giving examples

1) tate rst la of thermodynamics Iustify its mathematical

eCuation

1+) Dtain the relationship eteen and for a chemical

reaction

1) What is the expression for or8 done in a chemical reaction

Explain the meaning of each term

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a) dissolution of sugar in hot coee

) separation of r and Fr from their mixture

c) spreading of fragrance hen a ottle of perfume is opened

d) Jo of heat from cold oKect to hot oKect

e) heat transfer from ice to room at 2$

37) ene entropy Give its units What does entropy measures

31)Explain ho entropy changes in the folloing processes

a) free=ing of liCuid

) sulimation of solid

c) dissolving of ater in sugar

d) condensation of vapour

32) Which memer of the folloing pairs have larger entropy

Why

a) D2s) or D2g)

) 3Dl) or 2$D2$l)

c) Dg) or 2D4g)

d) eg) or Frg)

e) as) or als)

33) Why is it more convenience to predict spontaneity of reaction

in terms of Gsys rather than total34) ene Gis energy and change in Gis energy What are

the units of Gis energy

3$) tate second la of thermodynamics in terms of entropy and

express it mathematically

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3) tate third la of thermodynamics What is its usefulness

3+) Why is it impossile for any sustance to have an asolute

entropy =ero at temperature greater than 7F

3) (t is impossile for a reaction to e spontaneous yetexothermic Explain ith example

35) (s it possile for a reaction to e nonspontaneous yet

exothermic Explain ith example

47) -redict the sign of in the folloing process Give reasons

for your anser

a) 2D4g) 2D2g)) 6e2D3s) H 32g) 26es) H 32Dg)

c) 2g) H 32g) 23g)

d) ampgD3s) 23g)

e) D2g) D2s)

f) l2g) 2lg)

41) What can e said aout the spontaneity of reactions hen

a) and are oth positive

) and oth are negative

c) is positive and is negative

d) is negative and is positive

42) (dentify hich memer of the folloing pairs has largerentropy Why

a) eg) in a volume of 1 or eg) in a volume of $ oth at 2$

) D2g) at 1atm or D2g) at 17atm oth at the same temperature

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c) 2$Dl) or 2$Dg)

d) $ moles of e or 2 moles of e

43) What are the signs of for the folloing reaction

Explain ith reasons

2g) 2g)

44) erive the relationship eteen G and total

4$) Iustify the inclusion of Crev and 0 in the denition of entropylt

A Crevgt 0

4) 0he increase in entropy of a system alone does not guarantee

the spontaneity of a process Explain

4+) 0he criterion of spontaneity in terms of Gis energy is the

same as that laid don y second la of thermodynamic o

PROBLEMS

1) 0hree moles of an ideal gas are expanded isothermally from a

volume of 377cm3 to 2$ at 377F against a pressure of 15atm

alculate the or8 done in atm and Koules2) Dne mole of an ideal gas is compressed from $77cm3 against a

constant pressure of 121 17$-a 0he or8 involved in the

process is 3$7I alculate the nal volume

3) alculate the maximum or8 hen 24g of oxygen are

expanded isothermally and reversily from a pressure of 1

17$-a to 1778-a at 25F

4) 0hree moles of an ideal gas are compressed isothermally andreversily to a volume of 2 0he or8 done is 2538I at 22

alculate the initial volume of a gas

8112019 Chemistry Question 12sci (1)

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$) 2 172 8g of nitrogen is expanded isothermally and

reversily at 377F from 1$1$ 17$ m 2 hen the or8 done is

found to e 1+338 I 6ind the nal pressure

) sample of a gas asors 47778I of heata) if volume remains constantlt hat is

) uppose that in addition to asorption of heat y the samplelt

the surrounding does 27778I of or8 on the samplelt hat is

c) uppose that as the original sample asors heatlt it expands

against atmospheric pressure and does 778 I of or8 on its

surroundings What is

+) alculate the or8 done in each of the folloing reactions

tate hether or8 is done on or y the system

a) 0he oxidation of one mole of D2 at $7

2D2g) H D2g) 2D3g)

) decomposition of 2 moles of 4D3 at 177

4D3s) 2Dg) H 22Dg)

) 0he enthalpy change for the reaction

24g) H 2g) 2g) is 27I hen 177m of ethylene and

177m of 2 react at 1atm pressure alculate the pressure

volume or8 and

5) alculate standard enthalpy of the reaction

6e2D3s) H 3Dg) 26es) H 3D2g) from the folloing data

f 76e2D3)A2428Imol1ltf 7D)A117$8Imol1lt

f 7D2)A353$8Imol1

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8112019 Chemistry Question 12sci (1)

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Electro chemitry

Theory

1ene the terms resistivitylt conductivity and molar

conductivity Give its ( units

2Explain the terms conductivity and molar conductivity o are

they interrelated

3Why does conductivity of s solution decrease on dilution of a

solution

4o does molar conductivity of an electrolyte vary ith

concentration

$o does the variation in molar conductivity of an electrolyte

ith concentration diers for strong and ea8 electrolytes

Explain the dierent ehaviour of strong and ea8 electrolytes

toards the variation of conductivity ith concentration

+tate and explain Fohlrausch la of independent migration of

ions o it is useful to determine the molar conductivity of ea8

electrolytes at =ero concentration

o is the molar conductivity of strong electrolytes at =ero

concentration determined y graphical method Why is this

method not useful for ea8 electrolytes

5What is cell constant What is its unit o is it determined

17ene anode and cathode

11 Why is cathode in electrolytic cell considered to e negative

and anode positive

12 -redict the half cell reactions that occur hen fused Fl is

electroly=ed in a cell ith inert electrodes What is the overall cell

reaction

8112019 Chemistry Question 12sci (1)

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13 tate 6aradayBs las of electrolysis

14o ill you calculate the numer of moles of electrons

actually passed and mass of the sustance produced during

electrolysis of a salt solution using reaction stoichiometry1$o many electrons ill have a total charge of 1 coulom

1 o many faradayBs ould e reCuired to plate out 177 mole

of free metal from the folloing cations

a) ampg2H

) r3H

c) -2H

d) uH

1+ ene coulom and faraday

1 escrie the electrolysis of molten al using inert

electrodes

15 What is the dierence eteen electrolytic cell and voltaic

cell

27 Why is anode in galvanic cell considered to e negative and

cathode positive electrode

21 8etch the cell for the electrolysis of molten al (ndicate

cathodelt anode and their signs ho the Jo of electrons and

ions

22 What is salt ridge What are its functions in galvanic cell

23 What are the conventions used to rite cell diagramcell

formula)

24 escrie the construction of aniel cell Write electrode half

reactions and net cell reaction in aniel cell

8112019 Chemistry Question 12sci (1)

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2$ escrie the folloing types of electrodes giving one

examplelt ith reference to formulationlt electrode reaction and

ernst eCuation for electrode potential

a) metalsparingly salt electrode) gas electrode

2 What is redox electrode Give one example ith formulationlt

electrode reaction and ernst eCuation for electrode potential

2+ ene the terms oxidation potentiallt reduction potential and

cell potential

2 What conditions are reCuired for a cell potential to e calledstandard cell potential

25 6ormulate a cell for each of the folloing electrode reactions

a) n2H aC) H 2gl s) L n4H aC) H 2gs) H2l aC)

) ampg s) H r2l) L ampg2H aC) H 2r aC)

37 6ormulate a cell from the folloing electrode reactions

a) l2g) H 2e L 2l aC)

) 2( aC) L (2s) H 2e

31 What are standard electrode potential and standard emf of

the galvanic cell

32 Write ernst eCuation and explain the terms involved in it

What part of the eCuation represents the correction factor for

nonstandard state conditions

33 Write ernst eCuation for the folloing reactions

a) rs) H 36e3H aC) L r3H aC) H 36e2H aC)

) l3H aC) H 3e L l s)

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34 onsider the folloing E7 values and half reactions

(2s) H 2e L 2( aC) E7A7$3$M

u2H aC) H 2e L u s) E7A733+M

d2H aC) H 2e L ds) E7A77473

a) Which of the metals or nonmetals or ions is the strongest

oxidi=ing agent and hich is the strongest reducing agent

) 0he half reactions can e used to construct three galvanic

cells Which ill have the highest cell potential

3$ -redict hether

a) gH can oxidi=e - to -2H under standard state condition

) E7gA7+55M and E7

-A712M

3 -redict hether the folloing reactions occur under standard

state conditions

a) Dxidation of gs) y l2g) E7gA7Mlt E7

l2A13M

) eduction of 6e

3H

to 6e

2H

y us) E

7

6e3Hlt 6e2H A 7++MltE7uA14M

3+ 8etch and descrie the operation of

a) dry cell

) 2D2 fuel cell

3 What are the advantages and disadvantages of fuel cells

35 8etch lead storage cell

47 Write electrode reaction and overall cell reaction during the

operation of lead storage cell

41 Write electrode reaction and overall cell reaction hen lead

accumulator ehaves as an electrolytic cell

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42 o can ernst eCuation e used to sho that electrode

potential is eCual to the standard electrode potential y putting

approximate values in ernst eCuation se u2HNd half cell for

illustration

43 o are G7lt E7cell and eCuilirium constant related for a

particular reaction

44 Why is eCuilirium constant related to E7cell and not Ecell

4$ G7 for a redox reaction depends on the numer of electrons

transferred Explain

4 o does the eCuiliriumlt G7An6E7 explain that an

electrical potential is an intensive property

4+ Write shorthand notation for the cell for each of the folloing

reactions

a) u2H aC) H 2gs) H 2r L u s) H 2gr s)

) n2H aC) is oxidi=ed y r2 l)

4 rrange the folloing reducing agents in order of increasing

strength under standard state conditions 0he standard potentialsfor the reduction half reactions are given

gH aC) 7M)lt l3H aC) 1M)lt 62g) 2+M)lt l2g) 13M)lt

(2s) 7$4M)lt d2H aC) 74M)

45 rrange the folloing oxidi=ing agents in order of increasing

strength under standard state conditions 0he standard potentials

for the reduction half reactions are given

ls) 1M)lt l aC) 13M)lt us) 734M)lt 6es)744M)lt r

aC) 175M)lt is) 72M)

$7 Which species in each of the folloing pairs is etter oxidi=ing

agent under standard state conditions standard potential are

given) Give reasons for your anser

8112019 Chemistry Question 12sci (1)

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a) r2l) 175M) or u3H 14M)

) H aC) or gH aC) 7M)

c) -2H aC) 713M) or o2H 72M)

d) l2 g) 13M) or r3H 7+4M)

$1 Which species in each of the folloing pairs is etter reducing

agent under standard conditions E7 values are given Give

reasons for your anser

a) Fs) 2353M) or ampgs) 23M)

) o2H aC) 11M) or (n s) 714M)

c) e3H aC) 11M) or 0i2H73+M)

d) gl) 7M) or is) 723M)

PROBLEMS

1 conductivity cell lled ith 771amp Fl given at 2$o the

resistance of 74ohms 0he conductivity of Fl at 2$

o

is 7777

CHEMISTRY

d f O DF EEampE0

1) What are dloc8 elements

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2) What are floc8 elements

3) Explain the meaning of

i) 0ransition series ii) (nner transition element

4) Explain the position of the folloing in periodic tale

i) dloc8 elements ii) anthanoids iii) ctinoids

$) Explain the oxidation state of 1st ro elements of transition

series

) Explain the oxidation states of lanthanoids and actinoids

+) Why do lanthanoids form coloured compounds ) Explainlt most of the transition metal compounds are

remar8aly coloured

5) Why chromium has electronic conguration 3d$ 4s1 and not 3d4

4s2

17) Why does copper sho anormal electronic conguration

11) Explainlt the trends in atomic and ionic si=es of lanthanoidsand also of 1st ro elements of transition series

12) What are actinoids

13) What are transuranic elements Write their name

14) Why transition elements sho tendency to form large numer

of complexes

1$) Explain the compounds of copper ((() are coloured ut thoseof =inc are colourless

1) o is potassium dichromate prepared from chrome ion

1+) Write the preparationlt properties and use of potassium

permanganate

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1) Explainlt hy -t(M) complexes are generally octahedral hile

-t(() complexes are sCuare planar

15) ierentiate eteen lanthanoids and actinoids

27) What are chemical tins Give examples

21) Explain hy Gd3H is colourless

COORDINATION COMPOUNDS

1) What is the dierence eteen doule salt and coordinationcompounds

2) Explainlt hy 6e4)2 D4)22D) is a salt ut F 4P6e)Q is a

complex compound

3) Write the formula of the folloing complexes

i) alcium hexa cyano ferrate (()

ii) iammine dichloro platinum

iii) is ethylene diammine) dichloro iridium ((() ion

iv) -entamine caronato chromium ((() D(E

v) 0risethylene diammine ) coalt((() sulphate

vi) iamine ethylene diammine nic8el (() acetate

4) Write the rules hich are applied hile riting the formulas of

coordination compounds

$) ene the terms

i) entral metal atomgtion

ii) igand

8112019 Chemistry Question 12sci (1)

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iii) oordination compound

iv) oordination sphere

v) oordination numer

vi) oordination polyhedral

vii) omoleptic and heteroleptic complexes

viii) harge on the complexes

ix) oordination entity

) Write (- name of the folloing complexes

i) Pr2D)4 l2QD3

ii) P-ten)l4Q

iii) F 2Pi)4Q

iv) sP6el4Q

v) rl3-y)3

vi) F 3Po2D4)3Q

vii) Por2en)2Q

viii) P-tl4Q2

ix) Po2D))en)2Q2H

x) F 3Pl2D4)3Q

+) Explain the importance of principles of additive nomenclature

) (dentify the folloing ions y a simple test forming complex

compound

i) u2H ii) i2H iii) 6e3H iv) o2H

8112019 Chemistry Question 12sci (1)

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5) Dn the asis of WernerBs theory explainlt hy coalt amine

complexlt ol343 hen treated ith gD3 solution

precipitates only one ion even though there are three ions

17) alculate the eective atomic numer E) of the centralmetal atom in the folloing compounds

i) F 3P6e)Q ii) rD)

11) Write the postulates of WernerBs theory

12) Explain the onding in ol333 and ol3$3

13) Explain stereoisomerism in metal complexes ith coordination

numer 4 and 14) Why the tetrahedral complexes do not exhiit geometrical

isomerism

1$) ra cis and trans geometrical isomers of

i) dichlororomo iodo palladium (() ion

ii) P-t(()3)2l2Q

iii) Po((()3)l3Q

iv) Po((()3)42D)lQ2H

1) ra all possile geometrical isomers of P-t(M)

3)2-y)2l2Q2H ion

1+) Write oxidation statelt coordination numer and electronic

conguration of the metal atom in the folloing complexes

i) rl3-y)3 ii) F 4Pampn)Q

1) lassify the folloing ligands into monodentatelt polydentate

and amidentate

i) 3 ii) iii) iv) v) D2 vi) ethylene diammine

vii) oxalate

8112019 Chemistry Question 12sci (1)

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viii) triaminotriethylamine

15) ol3$32D is a pin8 solidlt the solution of this salt is also

pin8 and formed 3mol of gl ith silver nitrate solution Dn

heating pin8 solidlt it loses one ater molecule and forms purplesolid having same ratio of o3l as that of pin8 solid 0he

purple solid hen dissolved in ater and treated ith forms 1 mol

of gl ra the structure and name of the pin8 and purple

solids

27) ame the octahedral complex ions

i) Po2D4) en)2QH ii) transPr)4 3)2Q

21) ra the structures of the folloing complexes

i) Pol4Q2 ii) Pampn3)Q2H iii) P-tlQ iv) iD)4 v) Pi)4Q2

22) (n an octahedral crystal eldlt dra the gure to sho splitting

of dorital

23) What are ea8 eld and strong eld ligands What is spectro

chemical series

24) Pi)4Q2 is diamagnetic hile Pr3)Q3H is paramagnetltexplain

2$) Dn the asis of valence ond theory explain the nature of

onding in the folloing complexes

i) Po6Q3 ii) Po2D4)3Q3

2) lue coloured copper sulphate solution gave folloing

experimental results Explain the same

i) With aCueous potassium chloride it gave right green solution

ii) With aCueous potassium Juoride it gave a green precipitate

2+) ra the structures of optically active isomers of Poen)3Q3H

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2) ra the geometrical and optical isomers of

i) Pol2en)2QH ii) Polen)23)Q2H

25) What is lin8age isomerism Explain ith an example

37) What are hydrate isomers Explain ith examples

31) Explain the structure of

i) upraammonium sulphate ii) Po3)Q3H

32) What are the limitations of valence ond theory

33) Explain the magnetic properties of coordination compounds

34) Write the salient features of crystal eld theory What are itslimitations

3$) Explain the octahedral geometry of complexes using crystal

eld theory

3) Write a note on colours in coordination compounds

3+) Explain the factors aecting the staility of coordination

compound3) Write rief the applications of coordination compounds

HALOGEN DERIVATIVES O ALANES AND ARENES

1) What are al8yl halides o are they classied

2) Write (- names of the folloing compounds

i)

ii) 2Al

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iii)

iv)

v)

vi) secutyl chloride

vii) neopentyl romide

viii) tutyl iodide

ix) isopropyl romide

3) o is ethyl romide prepared from

i) Ethyl alcohol ii) ethane iii) ethane

4)Write the preparation of isopropyl chloride using the folloing

reagents

i) -l3 ii) -l$ iii) l2 iv) l v) Dl2

$) o is group replaced y folloing functional rroups

i) OD ii) O iii) O iv) O2

) Write a note on

i) andmeyerBs reaction ii) Wurt= reaction iii) 6in8elstein reaction

iv) 6ittig reaction v) 6riedel raft reaction

+) (dentify and in the folloing

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) Give the structures of the folloing compounds

i) 3romo2methyl pentane ii) 2romo3ethyl hexane iii) 1

holo utane

iv) pichloroen=ene v) 1lt1lt10richloroethane

5) student has performed an experiment in the laoratory e

mixed ater ith hexane and found to layers separated econd

time he mixed chloroform ith ater and he again found to

layers in the test tue Explain hich ill e upper layer and

hich one ill e loer layer in oth the experiments

17) onvert 1hloroutane into the folloing compounds

i) utane1ol ii) 1(odoutane iii) 3222 iv)

11) 6or each pair of compoundslt state hich compound is etter

2 sustrate

i) 2romoutanelt isopropyl romide ii) 1(odo2lt2dimethyl

propane or isopropyl iodide

12) hoose the memer that ill react faster from the folloing

pairs y 1 mechanism

13) -redict the expected product of sustitution reaction

i) isoutyl chloride mH sodium ethoxide

ii) nutyl chloride H sodium

iii) 1hloro propane H aC potassium hydroxide

iv) aniline H aD2gt l

14) Write the products

i) $22A2 H r L

ii) $A2 H r

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iii)

iv)

v)

1$) (dentify the chiral and achiral molecules

i)

ii)

iii)

1) iscuss 2 mechanism of methyl romide using aCueous

FD ra energy prole diagram1+) Write the mechanism of the reaction hen tutyl chloride is

treated ith aCueous FD ith energy prole diagram

1) ierentiate eteen 1 and 2 mechanism

15) Explain the nature of ond in

i) 322 ii)

27) What are uses of

i) 0 ii) (odoform iii) hloroform iv) aron tetrachloride

21) l8yl halides are polar and miscile ith aterlt explain

22) Which one of the folloing is more easily hydrolysed y

aCueous FD

$l$ and $2l

23) rrange the folloing groups in descending order 2lt D3lt

D3lt DD and l

24) ssign or conguration to each of the folloing

structures

8112019 Chemistry Question 12sci (1)

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i)

ii)

iii)

iv)

DDlt -ED E0E

1) What are alcohols o are they classied

2) What are monohydric alcohols o are they classied

4) Write the structures of folloing alcohols

i) 1Ethylcyclohexanol ii) ex3en2ol iii)yclohex2en1ol

iv) -entane1lt4diol

v) 2lt4imethylhexane1lt3lt$triol

$) Explain the folloing

i) -ropan1ol has higher oiling point than nutane

ii) ampethanol is more solule in ater than -ropan1ol

) Write the mechanism of hydration of ethylene to ethyl alcohol

+) -ropan1ol can not e prepared y acid catalyst hydration of

propenelt then ho is propene converted into propan1ol

)5) o is propanone converted into

i) -ropan2ol ii) 2ampethyl propan2ol

17) o ill you otain utan2ol from

8112019 Chemistry Question 12sci (1)

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i) -ropanal ii) utan2one iii) ut2ene

11) o is propan1ol prepared from

i) -ropanal ii) -ropanoic acid

12) o is cyclopentanol prepared from

i) yclopentanone ii) yclopentene

14) Write the mechanism of acid catalysed dehydration of ethanol

to give ethane

1$) Write the structure of aldehyde lt caroxylic acid and ester

that yield folloing alcohol

1+) o ill you prepare

i) 2ampethylutane1ol from an al8ene

ii) cyclohexylmethanol from a Grignard reagent

iii) 1phenylethanol from acetaldehyde

1) o are folloing conversions rought aout

i) en=yl chloride to en=yl alcohol

ii) en=yl alcohol to en=oic acid

iii) 1Ethylcyclohexanol from yclohexanone

15) What are phenols o are they classied

27)21) Give the structures and (- names of isomeric phenols

represented y the molecular formula 17D

22) o is phenol prepared from

8112019 Chemistry Question 12sci (1)

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i) hloroen=ene ii) (sopropyl en=ene iii) en=ene sulphonic

acid iv) aniline

23 ) Explain the folloing

i) -henol is more acidic than phenol

ii) onitrophenol is more acidic than ocresol

iii) pnitrophenol is less volatile than onitrophenol

24) Explain the folloing reactions of phenol

i) FoleBs reaction ii) iemer0iemann reaction

2$) ame the reagents used to convert phenol intoi) picric acid ii) 2lt4lt0riromophenol iii) en=ene iv) ophenol

sulphonic acid

2) What is the action of folloing reagents on phenol i)

romine in 2 at lo temperature

ii) ilute nitric acid at room temperature iii) oncentrated

sulphuric acid at room temperature

2+) Give distinguish test eteen phenol and ethanol

2) What are ethers o are ethers classied

25) What is metamerism Give the structure and (- name of

metamers of 2ampethoxypropane

37) Write the mechanism for acidic dehydration of ethanol

31) o is diethyl ether prepared y continuous ethericationprocess Why is the process so called

32) o ill you prepared methoxyethane from

i) l8yl halide ii) ia=omethane

33) tate the important uses of i) -henol ii) diethyl ether

8112019 Chemistry Question 12sci (1)

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34) Write the mechanism of action of hydrogen romide on tert

utyl methyl ether

3$) Explain the folloing reactions of anisole

i) romination ii) itration iii) 6riedelrafts al8ylation iv)6riedelrafts acylation

3) Explainlt i) 0he OD group attached to aromatic ring in

phenols and ii) 0he al8oxy group in al8yl aryl ethers are ortholt

para directing and activate the aromatic ring toars electrophilic

sustitution

3+) Write the chemical eCuations for Williamson synthesis of 2

Ethoxy2methypentane starting from ethanol and 2ampethylpentan2ol

3) n organic compound ith the formula 417D3 shos

properties of ether and alcohol hen treated ith an excess of

r yields only one compound 1lt2 diromomethane Write

structural formula of ether and that of alcohol

ALDEHYDES ETONES AND CABO$YLIC

ACID

1) Write the structure and give (- names of the folloing

compounds

i) chloropropionaldehyde

ii) Rhydroxyutyraldehyde

iii) isoutyraldehyde

iv) Rmethylvaleraldehyde

8112019 Chemistry Question 12sci (1)

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v) isopropyl methyl 8etone

vi) diisopropyl 8etone

vii) mromoen=aldehyde

viii) dien=yl 8etone

ix) divinyl 8etone

x) allyl methyl 8etone

xi) ethyl phenyl 8etone

xii) nutyrophenone

2) Write the structure of folloing compounds

i) 4ampethyl3nitroen=ophenone ii) 2ampethyl4oxopentanal iii)

3Dxopentanoic acid iv) 4chloropropiophenone v) 3

ampethoxyutanal vi) 4ydroxycyclohaxane caraldehyde

3) o ill you prepare i) propiophenone from propanenitrile ii)

4chloroen=aldehyde from 4chlorotoluene iii)

yclohaxanecaraldehyde from cyclohexylmethanol iv) 4

methoxyacetophenone from anisole v) 4methylen=aldehydefrom toluene

4) rrange the folloing compounds in the increasing order of

their oiling points

i) dimethyl etherlt ethyl alcohollt propanelt acetaldehyde

ii) acetonelt npropyl alcohollt ethyl methyl alcohol and nutane

$) What is the action of hydrogen cyanide in asic medium on i)utanone ii) 2lt4dichloroen=aldehyde

) What is the action of folloing compounds on cyclohexanone in

presence of dry hydrogen chloride

i) ethyl alcohol ii) ethylene glycol

8112019 Chemistry Question 12sci (1)

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+) Write the structure of product in the folloing reactions

i) 322D3

ii) $2D3

) Write the structures of caronyl compounds and ammonia

derivatives that comine to give folloing imines

i)

ii)

iii)

iv)v)

vi)

5) Write the chemical eCuations for aldol condensation or

anni==aro reaction that folloing compounds undergo

i) -ropanal ii) 2ampethylpropanal iii) -entanal iv) 3

ampethylutanal v) cetophenonevi) pampethoxyen=aldehyde vii) 2ampethylcyclohaxanone viii)

chloral ix) yclopentanone

x) -henyl acetaldehyde xi) 1-henylpropan1one

17) Write the structure of the maKor product of the folloing

crossed aldol condensation

i) formaldehyde and propionaldehydeii) en=aldehyde ith acetone

11) (dentify the compounds SBlt SB and SB in the folloing

reactions and rerite the complete eCuations

i)

8112019 Chemistry Question 12sci (1)

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ii)

12)o ill you eect folloing tostep conversions

i) -ropanal into utanone ii) utanone into ut2ene iii)

en=ene into mromoacetophenone iv) ex3yne into exan

3one v) en=oic acid into mnitroen=ylalcohol

13) o ill you convert en=aldehyde into folloing compounds

ampore than one steps may e reCuired

i) en=ophenone ii) en=oic acid iii) 3-henylpropan1ol iv)hydroxyphenylacetic acid

14) Give a chemical test to distinguish eteen folloing pairs of

compounds

i) Ethanal and propanone ii) -rpopanal and propanone iii)

-entane2one and pentane3one

1$) Write the structure and (- names of folloing caroxylicacids

i) ltRdimethylutanoic acid ii) Rphenylutyric acid iii) 1038389

chloromethylvaleric acid

Page 6: Chemistry Question 12sci (1)

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13) tate aoultBs la and otain expression for loering of

vapour pressure hen nonvolatile solute is dissolved

14) erive the relationship eteen relative loering of vapour

pressure and molar mass of solute1$) What is oiling point of liCuid

1) What is elevation of oiling point

1+) What is molal elevation constant oes it depend on the

nature of the solute

1) erive the relation eteen elevation of oiling point and

molar mass of the solute15) ene free=ing point of liCuid

27) What causes depression in free=ing point

21) ene molal depression constant

22) o molar mass of a nonvolatile solute is related to the

depression in free=ing point erive an eCuation

23) What is osmosis

24) ene semipermeale memrane and osmotic pressure

2$) ene the terms i) (sotonic solution ii) ypertonic solution

iii) ypotonic solution

2) tate i) vant ooyles la ii) vant oharles la

2+) erive vant o eCuation for osmotic pressure of a solution

2) o molar mass of a solute is determined from osmotic

pressure measurements

25) Explain anormal osmotic pressure

37) tate vant ovogadroBs la

8112019 Chemistry Question 12sci (1)

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31) Explain

i) normal molecular masses

ii) vant o factor

32) erive the eCuations

i) A

ii) A

PROBLEMS

1) 342g of glucose is dissolved in 477g of ater alculate

percentage y mass of glucose solution

2) solution is prepared y dissolving certain amount of solute in

$77g of ater 0he percentage y mass of a solute in solution is

23 alculate mass of solute

3)4cm3 of methyl alcohol is dissolved in 2$2g of ater

alculatelt i) percentage y mass of methyl alcohol ii) ampole

fraction of methyl alcohol and ater Given density of methyl

alcohol A 7+5$2ggtcm3 and A12lt A1 and DA1)

4) 12cm3 of en=ene is dissolved in 1cm3 of xylene alculate

y volume of en=ene

$) alculate mole fraction of l in solution of l containing

24 of l y massA1lt lA3$$)

) alculate mole fraction of solute in its 2 molal aCueous

solution

8112019 Chemistry Question 12sci (1)

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+) alculate the mole fractionlt molality and molarity of D3 in a

solution containing 122 D3 Given density of

D3A173ggtcm3lt A1lt A14lt DA1

) ulphuric acid is 5$ y mass alculate mole fraction andmolarity of 2D4 of density 151ggtcm3

5) Cueous solution of aD is mar8ed 17gt) 0he density of

the solution is 17+7ggtcm3

alculatelt

i) molarity ii) molality and iii) mole fraction of aD and ater

aA23lt A1 and DA1

17) attery acid is 422amp aCueous 2D4 solutionlt and has density

of 121ggtcm3 What is the molality of 2D4 A1lt A32lt DA1

11) 0he vapour pressure of 21 solution of a nonelectrolyte in

ater at 177 is +$$mm g alculate the molar mass of the

solute

12) 0he vapour pressure of ater at 27 is 1+mm g alculate

the vapour pressure of a solution containing 2g of

urea2D2) in $7g of ater A14lt A12lt A1

13) (n an experimentlt 174g of mannitol ere dissolved in 177g

of ater 0he vapour pressure of ater as loered y 7375mm

g from 1+$3$mm g alculate the molar mass of mannitol

14) solution containing 7$12g of naphthalene molar mass A

121+ggtmol) in $7g of l4 gives a oiling point elevation of

7472F While a solution of 721g of un8non solute in the

same mass of the solvent gives a oiling point elevation of 74+F

6ind the molar mass of the un8non solute

F for l4A $73F 8g mol1 of solvent)

8112019 Chemistry Question 12sci (1)

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1$) alculate the mass in grams of an impurity of molar mass

177gmol1 hich ould e reCuired to raise the oiling point of

$7g of chloroform y737F

F for chloroformA 33F 8g mol

1

)1) oiling point of a solvent is 72 When 7415g of the solute

of molar mass 2$24g mol1 as dissolved in +$g of the solventlt

the oiling point of the solution as found to e 72$ 6ind

the molal elevation constant

1+) 7ml of glacial acetic acid ith density 17gm 1 is

dissolved in 18g ater and the solution fro=e at 7727$

alculate vant o factor and F f for ater is1F 8g mol1

1) enryBs la constant for soluility of methane in en=ene is

42+ 17$mm g at constant temperature alculate the

soluility of methane at +7mm g pressure at same

temperature

CHEMICAL THERMODYNAMICS AND ENERGIES

Theory

1)ene the terms systemlt surroundinglt open systemlt close

systemlt isolated systemlt exothermic reactionslt endothermic

reactionslt extensive properties and intensive properties

2) Explain the term state function Give to examples of state

functions and to example of path function

3) Explain thermodynamics eCuilirium

4) istinguish eteen isothermal and adiaatic process

$) What is a reversile process What are its features

) ho that pressure times volume is eCual to or8

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 1038

+) erive the expression for or8 hen a gas expands against

constant external pressure

) lassify the folloing reactions according to or8 done y the

systemlt on the system and no or8 done if pressure is constanta) 2g) H l2g) 2lg)

) 3D2g) 2D3g)

c) 2D2g) D2g)H 2D3g)

d) ampgD3s) H ampgDs) D2g)

e) 4D3s) H 2Dg) 22Dg)

5) What is the dierence dierence eteen and What is

the sign of for exothermic and endothermic reactions nder

hat circumstances

17) What are the sign convention for C and W

11) Explain the concept of maximum or8

12) free expansion of a gas results into no or8 Explain

13) erive the expression for maximum or8

14) ene enthalpy t constant pressure sho that A

1$) (t is di9cult to calculate lt hoever can e easily

determined Why Explain giving examples

1) tate rst la of thermodynamics Iustify its mathematical

eCuation

1+) Dtain the relationship eteen and for a chemical

reaction

1) What is the expression for or8 done in a chemical reaction

Explain the meaning of each term

8112019 Chemistry Question 12sci (1)

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8112019 Chemistry Question 12sci (1)

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a) dissolution of sugar in hot coee

) separation of r and Fr from their mixture

c) spreading of fragrance hen a ottle of perfume is opened

d) Jo of heat from cold oKect to hot oKect

e) heat transfer from ice to room at 2$

37) ene entropy Give its units What does entropy measures

31)Explain ho entropy changes in the folloing processes

a) free=ing of liCuid

) sulimation of solid

c) dissolving of ater in sugar

d) condensation of vapour

32) Which memer of the folloing pairs have larger entropy

Why

a) D2s) or D2g)

) 3Dl) or 2$D2$l)

c) Dg) or 2D4g)

d) eg) or Frg)

e) as) or als)

33) Why is it more convenience to predict spontaneity of reaction

in terms of Gsys rather than total34) ene Gis energy and change in Gis energy What are

the units of Gis energy

3$) tate second la of thermodynamics in terms of entropy and

express it mathematically

8112019 Chemistry Question 12sci (1)

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3) tate third la of thermodynamics What is its usefulness

3+) Why is it impossile for any sustance to have an asolute

entropy =ero at temperature greater than 7F

3) (t is impossile for a reaction to e spontaneous yetexothermic Explain ith example

35) (s it possile for a reaction to e nonspontaneous yet

exothermic Explain ith example

47) -redict the sign of in the folloing process Give reasons

for your anser

a) 2D4g) 2D2g)) 6e2D3s) H 32g) 26es) H 32Dg)

c) 2g) H 32g) 23g)

d) ampgD3s) 23g)

e) D2g) D2s)

f) l2g) 2lg)

41) What can e said aout the spontaneity of reactions hen

a) and are oth positive

) and oth are negative

c) is positive and is negative

d) is negative and is positive

42) (dentify hich memer of the folloing pairs has largerentropy Why

a) eg) in a volume of 1 or eg) in a volume of $ oth at 2$

) D2g) at 1atm or D2g) at 17atm oth at the same temperature

8112019 Chemistry Question 12sci (1)

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c) 2$Dl) or 2$Dg)

d) $ moles of e or 2 moles of e

43) What are the signs of for the folloing reaction

Explain ith reasons

2g) 2g)

44) erive the relationship eteen G and total

4$) Iustify the inclusion of Crev and 0 in the denition of entropylt

A Crevgt 0

4) 0he increase in entropy of a system alone does not guarantee

the spontaneity of a process Explain

4+) 0he criterion of spontaneity in terms of Gis energy is the

same as that laid don y second la of thermodynamic o

PROBLEMS

1) 0hree moles of an ideal gas are expanded isothermally from a

volume of 377cm3 to 2$ at 377F against a pressure of 15atm

alculate the or8 done in atm and Koules2) Dne mole of an ideal gas is compressed from $77cm3 against a

constant pressure of 121 17$-a 0he or8 involved in the

process is 3$7I alculate the nal volume

3) alculate the maximum or8 hen 24g of oxygen are

expanded isothermally and reversily from a pressure of 1

17$-a to 1778-a at 25F

4) 0hree moles of an ideal gas are compressed isothermally andreversily to a volume of 2 0he or8 done is 2538I at 22

alculate the initial volume of a gas

8112019 Chemistry Question 12sci (1)

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$) 2 172 8g of nitrogen is expanded isothermally and

reversily at 377F from 1$1$ 17$ m 2 hen the or8 done is

found to e 1+338 I 6ind the nal pressure

) sample of a gas asors 47778I of heata) if volume remains constantlt hat is

) uppose that in addition to asorption of heat y the samplelt

the surrounding does 27778I of or8 on the samplelt hat is

c) uppose that as the original sample asors heatlt it expands

against atmospheric pressure and does 778 I of or8 on its

surroundings What is

+) alculate the or8 done in each of the folloing reactions

tate hether or8 is done on or y the system

a) 0he oxidation of one mole of D2 at $7

2D2g) H D2g) 2D3g)

) decomposition of 2 moles of 4D3 at 177

4D3s) 2Dg) H 22Dg)

) 0he enthalpy change for the reaction

24g) H 2g) 2g) is 27I hen 177m of ethylene and

177m of 2 react at 1atm pressure alculate the pressure

volume or8 and

5) alculate standard enthalpy of the reaction

6e2D3s) H 3Dg) 26es) H 3D2g) from the folloing data

f 76e2D3)A2428Imol1ltf 7D)A117$8Imol1lt

f 7D2)A353$8Imol1

8112019 Chemistry Question 12sci (1)

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8112019 Chemistry Question 12sci (1)

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Electro chemitry

Theory

1ene the terms resistivitylt conductivity and molar

conductivity Give its ( units

2Explain the terms conductivity and molar conductivity o are

they interrelated

3Why does conductivity of s solution decrease on dilution of a

solution

4o does molar conductivity of an electrolyte vary ith

concentration

$o does the variation in molar conductivity of an electrolyte

ith concentration diers for strong and ea8 electrolytes

Explain the dierent ehaviour of strong and ea8 electrolytes

toards the variation of conductivity ith concentration

+tate and explain Fohlrausch la of independent migration of

ions o it is useful to determine the molar conductivity of ea8

electrolytes at =ero concentration

o is the molar conductivity of strong electrolytes at =ero

concentration determined y graphical method Why is this

method not useful for ea8 electrolytes

5What is cell constant What is its unit o is it determined

17ene anode and cathode

11 Why is cathode in electrolytic cell considered to e negative

and anode positive

12 -redict the half cell reactions that occur hen fused Fl is

electroly=ed in a cell ith inert electrodes What is the overall cell

reaction

8112019 Chemistry Question 12sci (1)

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13 tate 6aradayBs las of electrolysis

14o ill you calculate the numer of moles of electrons

actually passed and mass of the sustance produced during

electrolysis of a salt solution using reaction stoichiometry1$o many electrons ill have a total charge of 1 coulom

1 o many faradayBs ould e reCuired to plate out 177 mole

of free metal from the folloing cations

a) ampg2H

) r3H

c) -2H

d) uH

1+ ene coulom and faraday

1 escrie the electrolysis of molten al using inert

electrodes

15 What is the dierence eteen electrolytic cell and voltaic

cell

27 Why is anode in galvanic cell considered to e negative and

cathode positive electrode

21 8etch the cell for the electrolysis of molten al (ndicate

cathodelt anode and their signs ho the Jo of electrons and

ions

22 What is salt ridge What are its functions in galvanic cell

23 What are the conventions used to rite cell diagramcell

formula)

24 escrie the construction of aniel cell Write electrode half

reactions and net cell reaction in aniel cell

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 1938

2$ escrie the folloing types of electrodes giving one

examplelt ith reference to formulationlt electrode reaction and

ernst eCuation for electrode potential

a) metalsparingly salt electrode) gas electrode

2 What is redox electrode Give one example ith formulationlt

electrode reaction and ernst eCuation for electrode potential

2+ ene the terms oxidation potentiallt reduction potential and

cell potential

2 What conditions are reCuired for a cell potential to e calledstandard cell potential

25 6ormulate a cell for each of the folloing electrode reactions

a) n2H aC) H 2gl s) L n4H aC) H 2gs) H2l aC)

) ampg s) H r2l) L ampg2H aC) H 2r aC)

37 6ormulate a cell from the folloing electrode reactions

a) l2g) H 2e L 2l aC)

) 2( aC) L (2s) H 2e

31 What are standard electrode potential and standard emf of

the galvanic cell

32 Write ernst eCuation and explain the terms involved in it

What part of the eCuation represents the correction factor for

nonstandard state conditions

33 Write ernst eCuation for the folloing reactions

a) rs) H 36e3H aC) L r3H aC) H 36e2H aC)

) l3H aC) H 3e L l s)

8112019 Chemistry Question 12sci (1)

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34 onsider the folloing E7 values and half reactions

(2s) H 2e L 2( aC) E7A7$3$M

u2H aC) H 2e L u s) E7A733+M

d2H aC) H 2e L ds) E7A77473

a) Which of the metals or nonmetals or ions is the strongest

oxidi=ing agent and hich is the strongest reducing agent

) 0he half reactions can e used to construct three galvanic

cells Which ill have the highest cell potential

3$ -redict hether

a) gH can oxidi=e - to -2H under standard state condition

) E7gA7+55M and E7

-A712M

3 -redict hether the folloing reactions occur under standard

state conditions

a) Dxidation of gs) y l2g) E7gA7Mlt E7

l2A13M

) eduction of 6e

3H

to 6e

2H

y us) E

7

6e3Hlt 6e2H A 7++MltE7uA14M

3+ 8etch and descrie the operation of

a) dry cell

) 2D2 fuel cell

3 What are the advantages and disadvantages of fuel cells

35 8etch lead storage cell

47 Write electrode reaction and overall cell reaction during the

operation of lead storage cell

41 Write electrode reaction and overall cell reaction hen lead

accumulator ehaves as an electrolytic cell

8112019 Chemistry Question 12sci (1)

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42 o can ernst eCuation e used to sho that electrode

potential is eCual to the standard electrode potential y putting

approximate values in ernst eCuation se u2HNd half cell for

illustration

43 o are G7lt E7cell and eCuilirium constant related for a

particular reaction

44 Why is eCuilirium constant related to E7cell and not Ecell

4$ G7 for a redox reaction depends on the numer of electrons

transferred Explain

4 o does the eCuiliriumlt G7An6E7 explain that an

electrical potential is an intensive property

4+ Write shorthand notation for the cell for each of the folloing

reactions

a) u2H aC) H 2gs) H 2r L u s) H 2gr s)

) n2H aC) is oxidi=ed y r2 l)

4 rrange the folloing reducing agents in order of increasing

strength under standard state conditions 0he standard potentialsfor the reduction half reactions are given

gH aC) 7M)lt l3H aC) 1M)lt 62g) 2+M)lt l2g) 13M)lt

(2s) 7$4M)lt d2H aC) 74M)

45 rrange the folloing oxidi=ing agents in order of increasing

strength under standard state conditions 0he standard potentials

for the reduction half reactions are given

ls) 1M)lt l aC) 13M)lt us) 734M)lt 6es)744M)lt r

aC) 175M)lt is) 72M)

$7 Which species in each of the folloing pairs is etter oxidi=ing

agent under standard state conditions standard potential are

given) Give reasons for your anser

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 2238

a) r2l) 175M) or u3H 14M)

) H aC) or gH aC) 7M)

c) -2H aC) 713M) or o2H 72M)

d) l2 g) 13M) or r3H 7+4M)

$1 Which species in each of the folloing pairs is etter reducing

agent under standard conditions E7 values are given Give

reasons for your anser

a) Fs) 2353M) or ampgs) 23M)

) o2H aC) 11M) or (n s) 714M)

c) e3H aC) 11M) or 0i2H73+M)

d) gl) 7M) or is) 723M)

PROBLEMS

1 conductivity cell lled ith 771amp Fl given at 2$o the

resistance of 74ohms 0he conductivity of Fl at 2$

o

is 7777

CHEMISTRY

d f O DF EEampE0

1) What are dloc8 elements

8112019 Chemistry Question 12sci (1)

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2) What are floc8 elements

3) Explain the meaning of

i) 0ransition series ii) (nner transition element

4) Explain the position of the folloing in periodic tale

i) dloc8 elements ii) anthanoids iii) ctinoids

$) Explain the oxidation state of 1st ro elements of transition

series

) Explain the oxidation states of lanthanoids and actinoids

+) Why do lanthanoids form coloured compounds ) Explainlt most of the transition metal compounds are

remar8aly coloured

5) Why chromium has electronic conguration 3d$ 4s1 and not 3d4

4s2

17) Why does copper sho anormal electronic conguration

11) Explainlt the trends in atomic and ionic si=es of lanthanoidsand also of 1st ro elements of transition series

12) What are actinoids

13) What are transuranic elements Write their name

14) Why transition elements sho tendency to form large numer

of complexes

1$) Explain the compounds of copper ((() are coloured ut thoseof =inc are colourless

1) o is potassium dichromate prepared from chrome ion

1+) Write the preparationlt properties and use of potassium

permanganate

8112019 Chemistry Question 12sci (1)

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1) Explainlt hy -t(M) complexes are generally octahedral hile

-t(() complexes are sCuare planar

15) ierentiate eteen lanthanoids and actinoids

27) What are chemical tins Give examples

21) Explain hy Gd3H is colourless

COORDINATION COMPOUNDS

1) What is the dierence eteen doule salt and coordinationcompounds

2) Explainlt hy 6e4)2 D4)22D) is a salt ut F 4P6e)Q is a

complex compound

3) Write the formula of the folloing complexes

i) alcium hexa cyano ferrate (()

ii) iammine dichloro platinum

iii) is ethylene diammine) dichloro iridium ((() ion

iv) -entamine caronato chromium ((() D(E

v) 0risethylene diammine ) coalt((() sulphate

vi) iamine ethylene diammine nic8el (() acetate

4) Write the rules hich are applied hile riting the formulas of

coordination compounds

$) ene the terms

i) entral metal atomgtion

ii) igand

8112019 Chemistry Question 12sci (1)

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iii) oordination compound

iv) oordination sphere

v) oordination numer

vi) oordination polyhedral

vii) omoleptic and heteroleptic complexes

viii) harge on the complexes

ix) oordination entity

) Write (- name of the folloing complexes

i) Pr2D)4 l2QD3

ii) P-ten)l4Q

iii) F 2Pi)4Q

iv) sP6el4Q

v) rl3-y)3

vi) F 3Po2D4)3Q

vii) Por2en)2Q

viii) P-tl4Q2

ix) Po2D))en)2Q2H

x) F 3Pl2D4)3Q

+) Explain the importance of principles of additive nomenclature

) (dentify the folloing ions y a simple test forming complex

compound

i) u2H ii) i2H iii) 6e3H iv) o2H

8112019 Chemistry Question 12sci (1)

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5) Dn the asis of WernerBs theory explainlt hy coalt amine

complexlt ol343 hen treated ith gD3 solution

precipitates only one ion even though there are three ions

17) alculate the eective atomic numer E) of the centralmetal atom in the folloing compounds

i) F 3P6e)Q ii) rD)

11) Write the postulates of WernerBs theory

12) Explain the onding in ol333 and ol3$3

13) Explain stereoisomerism in metal complexes ith coordination

numer 4 and 14) Why the tetrahedral complexes do not exhiit geometrical

isomerism

1$) ra cis and trans geometrical isomers of

i) dichlororomo iodo palladium (() ion

ii) P-t(()3)2l2Q

iii) Po((()3)l3Q

iv) Po((()3)42D)lQ2H

1) ra all possile geometrical isomers of P-t(M)

3)2-y)2l2Q2H ion

1+) Write oxidation statelt coordination numer and electronic

conguration of the metal atom in the folloing complexes

i) rl3-y)3 ii) F 4Pampn)Q

1) lassify the folloing ligands into monodentatelt polydentate

and amidentate

i) 3 ii) iii) iv) v) D2 vi) ethylene diammine

vii) oxalate

8112019 Chemistry Question 12sci (1)

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viii) triaminotriethylamine

15) ol3$32D is a pin8 solidlt the solution of this salt is also

pin8 and formed 3mol of gl ith silver nitrate solution Dn

heating pin8 solidlt it loses one ater molecule and forms purplesolid having same ratio of o3l as that of pin8 solid 0he

purple solid hen dissolved in ater and treated ith forms 1 mol

of gl ra the structure and name of the pin8 and purple

solids

27) ame the octahedral complex ions

i) Po2D4) en)2QH ii) transPr)4 3)2Q

21) ra the structures of the folloing complexes

i) Pol4Q2 ii) Pampn3)Q2H iii) P-tlQ iv) iD)4 v) Pi)4Q2

22) (n an octahedral crystal eldlt dra the gure to sho splitting

of dorital

23) What are ea8 eld and strong eld ligands What is spectro

chemical series

24) Pi)4Q2 is diamagnetic hile Pr3)Q3H is paramagnetltexplain

2$) Dn the asis of valence ond theory explain the nature of

onding in the folloing complexes

i) Po6Q3 ii) Po2D4)3Q3

2) lue coloured copper sulphate solution gave folloing

experimental results Explain the same

i) With aCueous potassium chloride it gave right green solution

ii) With aCueous potassium Juoride it gave a green precipitate

2+) ra the structures of optically active isomers of Poen)3Q3H

8112019 Chemistry Question 12sci (1)

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2) ra the geometrical and optical isomers of

i) Pol2en)2QH ii) Polen)23)Q2H

25) What is lin8age isomerism Explain ith an example

37) What are hydrate isomers Explain ith examples

31) Explain the structure of

i) upraammonium sulphate ii) Po3)Q3H

32) What are the limitations of valence ond theory

33) Explain the magnetic properties of coordination compounds

34) Write the salient features of crystal eld theory What are itslimitations

3$) Explain the octahedral geometry of complexes using crystal

eld theory

3) Write a note on colours in coordination compounds

3+) Explain the factors aecting the staility of coordination

compound3) Write rief the applications of coordination compounds

HALOGEN DERIVATIVES O ALANES AND ARENES

1) What are al8yl halides o are they classied

2) Write (- names of the folloing compounds

i)

ii) 2Al

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iii)

iv)

v)

vi) secutyl chloride

vii) neopentyl romide

viii) tutyl iodide

ix) isopropyl romide

3) o is ethyl romide prepared from

i) Ethyl alcohol ii) ethane iii) ethane

4)Write the preparation of isopropyl chloride using the folloing

reagents

i) -l3 ii) -l$ iii) l2 iv) l v) Dl2

$) o is group replaced y folloing functional rroups

i) OD ii) O iii) O iv) O2

) Write a note on

i) andmeyerBs reaction ii) Wurt= reaction iii) 6in8elstein reaction

iv) 6ittig reaction v) 6riedel raft reaction

+) (dentify and in the folloing

8112019 Chemistry Question 12sci (1)

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) Give the structures of the folloing compounds

i) 3romo2methyl pentane ii) 2romo3ethyl hexane iii) 1

holo utane

iv) pichloroen=ene v) 1lt1lt10richloroethane

5) student has performed an experiment in the laoratory e

mixed ater ith hexane and found to layers separated econd

time he mixed chloroform ith ater and he again found to

layers in the test tue Explain hich ill e upper layer and

hich one ill e loer layer in oth the experiments

17) onvert 1hloroutane into the folloing compounds

i) utane1ol ii) 1(odoutane iii) 3222 iv)

11) 6or each pair of compoundslt state hich compound is etter

2 sustrate

i) 2romoutanelt isopropyl romide ii) 1(odo2lt2dimethyl

propane or isopropyl iodide

12) hoose the memer that ill react faster from the folloing

pairs y 1 mechanism

13) -redict the expected product of sustitution reaction

i) isoutyl chloride mH sodium ethoxide

ii) nutyl chloride H sodium

iii) 1hloro propane H aC potassium hydroxide

iv) aniline H aD2gt l

14) Write the products

i) $22A2 H r L

ii) $A2 H r

8112019 Chemistry Question 12sci (1)

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iii)

iv)

v)

1$) (dentify the chiral and achiral molecules

i)

ii)

iii)

1) iscuss 2 mechanism of methyl romide using aCueous

FD ra energy prole diagram1+) Write the mechanism of the reaction hen tutyl chloride is

treated ith aCueous FD ith energy prole diagram

1) ierentiate eteen 1 and 2 mechanism

15) Explain the nature of ond in

i) 322 ii)

27) What are uses of

i) 0 ii) (odoform iii) hloroform iv) aron tetrachloride

21) l8yl halides are polar and miscile ith aterlt explain

22) Which one of the folloing is more easily hydrolysed y

aCueous FD

$l$ and $2l

23) rrange the folloing groups in descending order 2lt D3lt

D3lt DD and l

24) ssign or conguration to each of the folloing

structures

8112019 Chemistry Question 12sci (1)

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i)

ii)

iii)

iv)

DDlt -ED E0E

1) What are alcohols o are they classied

2) What are monohydric alcohols o are they classied

4) Write the structures of folloing alcohols

i) 1Ethylcyclohexanol ii) ex3en2ol iii)yclohex2en1ol

iv) -entane1lt4diol

v) 2lt4imethylhexane1lt3lt$triol

$) Explain the folloing

i) -ropan1ol has higher oiling point than nutane

ii) ampethanol is more solule in ater than -ropan1ol

) Write the mechanism of hydration of ethylene to ethyl alcohol

+) -ropan1ol can not e prepared y acid catalyst hydration of

propenelt then ho is propene converted into propan1ol

)5) o is propanone converted into

i) -ropan2ol ii) 2ampethyl propan2ol

17) o ill you otain utan2ol from

8112019 Chemistry Question 12sci (1)

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i) -ropanal ii) utan2one iii) ut2ene

11) o is propan1ol prepared from

i) -ropanal ii) -ropanoic acid

12) o is cyclopentanol prepared from

i) yclopentanone ii) yclopentene

14) Write the mechanism of acid catalysed dehydration of ethanol

to give ethane

1$) Write the structure of aldehyde lt caroxylic acid and ester

that yield folloing alcohol

1+) o ill you prepare

i) 2ampethylutane1ol from an al8ene

ii) cyclohexylmethanol from a Grignard reagent

iii) 1phenylethanol from acetaldehyde

1) o are folloing conversions rought aout

i) en=yl chloride to en=yl alcohol

ii) en=yl alcohol to en=oic acid

iii) 1Ethylcyclohexanol from yclohexanone

15) What are phenols o are they classied

27)21) Give the structures and (- names of isomeric phenols

represented y the molecular formula 17D

22) o is phenol prepared from

8112019 Chemistry Question 12sci (1)

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i) hloroen=ene ii) (sopropyl en=ene iii) en=ene sulphonic

acid iv) aniline

23 ) Explain the folloing

i) -henol is more acidic than phenol

ii) onitrophenol is more acidic than ocresol

iii) pnitrophenol is less volatile than onitrophenol

24) Explain the folloing reactions of phenol

i) FoleBs reaction ii) iemer0iemann reaction

2$) ame the reagents used to convert phenol intoi) picric acid ii) 2lt4lt0riromophenol iii) en=ene iv) ophenol

sulphonic acid

2) What is the action of folloing reagents on phenol i)

romine in 2 at lo temperature

ii) ilute nitric acid at room temperature iii) oncentrated

sulphuric acid at room temperature

2+) Give distinguish test eteen phenol and ethanol

2) What are ethers o are ethers classied

25) What is metamerism Give the structure and (- name of

metamers of 2ampethoxypropane

37) Write the mechanism for acidic dehydration of ethanol

31) o is diethyl ether prepared y continuous ethericationprocess Why is the process so called

32) o ill you prepared methoxyethane from

i) l8yl halide ii) ia=omethane

33) tate the important uses of i) -henol ii) diethyl ether

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34) Write the mechanism of action of hydrogen romide on tert

utyl methyl ether

3$) Explain the folloing reactions of anisole

i) romination ii) itration iii) 6riedelrafts al8ylation iv)6riedelrafts acylation

3) Explainlt i) 0he OD group attached to aromatic ring in

phenols and ii) 0he al8oxy group in al8yl aryl ethers are ortholt

para directing and activate the aromatic ring toars electrophilic

sustitution

3+) Write the chemical eCuations for Williamson synthesis of 2

Ethoxy2methypentane starting from ethanol and 2ampethylpentan2ol

3) n organic compound ith the formula 417D3 shos

properties of ether and alcohol hen treated ith an excess of

r yields only one compound 1lt2 diromomethane Write

structural formula of ether and that of alcohol

ALDEHYDES ETONES AND CABO$YLIC

ACID

1) Write the structure and give (- names of the folloing

compounds

i) chloropropionaldehyde

ii) Rhydroxyutyraldehyde

iii) isoutyraldehyde

iv) Rmethylvaleraldehyde

8112019 Chemistry Question 12sci (1)

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v) isopropyl methyl 8etone

vi) diisopropyl 8etone

vii) mromoen=aldehyde

viii) dien=yl 8etone

ix) divinyl 8etone

x) allyl methyl 8etone

xi) ethyl phenyl 8etone

xii) nutyrophenone

2) Write the structure of folloing compounds

i) 4ampethyl3nitroen=ophenone ii) 2ampethyl4oxopentanal iii)

3Dxopentanoic acid iv) 4chloropropiophenone v) 3

ampethoxyutanal vi) 4ydroxycyclohaxane caraldehyde

3) o ill you prepare i) propiophenone from propanenitrile ii)

4chloroen=aldehyde from 4chlorotoluene iii)

yclohaxanecaraldehyde from cyclohexylmethanol iv) 4

methoxyacetophenone from anisole v) 4methylen=aldehydefrom toluene

4) rrange the folloing compounds in the increasing order of

their oiling points

i) dimethyl etherlt ethyl alcohollt propanelt acetaldehyde

ii) acetonelt npropyl alcohollt ethyl methyl alcohol and nutane

$) What is the action of hydrogen cyanide in asic medium on i)utanone ii) 2lt4dichloroen=aldehyde

) What is the action of folloing compounds on cyclohexanone in

presence of dry hydrogen chloride

i) ethyl alcohol ii) ethylene glycol

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+) Write the structure of product in the folloing reactions

i) 322D3

ii) $2D3

) Write the structures of caronyl compounds and ammonia

derivatives that comine to give folloing imines

i)

ii)

iii)

iv)v)

vi)

5) Write the chemical eCuations for aldol condensation or

anni==aro reaction that folloing compounds undergo

i) -ropanal ii) 2ampethylpropanal iii) -entanal iv) 3

ampethylutanal v) cetophenonevi) pampethoxyen=aldehyde vii) 2ampethylcyclohaxanone viii)

chloral ix) yclopentanone

x) -henyl acetaldehyde xi) 1-henylpropan1one

17) Write the structure of the maKor product of the folloing

crossed aldol condensation

i) formaldehyde and propionaldehydeii) en=aldehyde ith acetone

11) (dentify the compounds SBlt SB and SB in the folloing

reactions and rerite the complete eCuations

i)

8112019 Chemistry Question 12sci (1)

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ii)

12)o ill you eect folloing tostep conversions

i) -ropanal into utanone ii) utanone into ut2ene iii)

en=ene into mromoacetophenone iv) ex3yne into exan

3one v) en=oic acid into mnitroen=ylalcohol

13) o ill you convert en=aldehyde into folloing compounds

ampore than one steps may e reCuired

i) en=ophenone ii) en=oic acid iii) 3-henylpropan1ol iv)hydroxyphenylacetic acid

14) Give a chemical test to distinguish eteen folloing pairs of

compounds

i) Ethanal and propanone ii) -rpopanal and propanone iii)

-entane2one and pentane3one

1$) Write the structure and (- names of folloing caroxylicacids

i) ltRdimethylutanoic acid ii) Rphenylutyric acid iii) 1038389

chloromethylvaleric acid

Page 7: Chemistry Question 12sci (1)

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31) Explain

i) normal molecular masses

ii) vant o factor

32) erive the eCuations

i) A

ii) A

PROBLEMS

1) 342g of glucose is dissolved in 477g of ater alculate

percentage y mass of glucose solution

2) solution is prepared y dissolving certain amount of solute in

$77g of ater 0he percentage y mass of a solute in solution is

23 alculate mass of solute

3)4cm3 of methyl alcohol is dissolved in 2$2g of ater

alculatelt i) percentage y mass of methyl alcohol ii) ampole

fraction of methyl alcohol and ater Given density of methyl

alcohol A 7+5$2ggtcm3 and A12lt A1 and DA1)

4) 12cm3 of en=ene is dissolved in 1cm3 of xylene alculate

y volume of en=ene

$) alculate mole fraction of l in solution of l containing

24 of l y massA1lt lA3$$)

) alculate mole fraction of solute in its 2 molal aCueous

solution

8112019 Chemistry Question 12sci (1)

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+) alculate the mole fractionlt molality and molarity of D3 in a

solution containing 122 D3 Given density of

D3A173ggtcm3lt A1lt A14lt DA1

) ulphuric acid is 5$ y mass alculate mole fraction andmolarity of 2D4 of density 151ggtcm3

5) Cueous solution of aD is mar8ed 17gt) 0he density of

the solution is 17+7ggtcm3

alculatelt

i) molarity ii) molality and iii) mole fraction of aD and ater

aA23lt A1 and DA1

17) attery acid is 422amp aCueous 2D4 solutionlt and has density

of 121ggtcm3 What is the molality of 2D4 A1lt A32lt DA1

11) 0he vapour pressure of 21 solution of a nonelectrolyte in

ater at 177 is +$$mm g alculate the molar mass of the

solute

12) 0he vapour pressure of ater at 27 is 1+mm g alculate

the vapour pressure of a solution containing 2g of

urea2D2) in $7g of ater A14lt A12lt A1

13) (n an experimentlt 174g of mannitol ere dissolved in 177g

of ater 0he vapour pressure of ater as loered y 7375mm

g from 1+$3$mm g alculate the molar mass of mannitol

14) solution containing 7$12g of naphthalene molar mass A

121+ggtmol) in $7g of l4 gives a oiling point elevation of

7472F While a solution of 721g of un8non solute in the

same mass of the solvent gives a oiling point elevation of 74+F

6ind the molar mass of the un8non solute

F for l4A $73F 8g mol1 of solvent)

8112019 Chemistry Question 12sci (1)

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1$) alculate the mass in grams of an impurity of molar mass

177gmol1 hich ould e reCuired to raise the oiling point of

$7g of chloroform y737F

F for chloroformA 33F 8g mol

1

)1) oiling point of a solvent is 72 When 7415g of the solute

of molar mass 2$24g mol1 as dissolved in +$g of the solventlt

the oiling point of the solution as found to e 72$ 6ind

the molal elevation constant

1+) 7ml of glacial acetic acid ith density 17gm 1 is

dissolved in 18g ater and the solution fro=e at 7727$

alculate vant o factor and F f for ater is1F 8g mol1

1) enryBs la constant for soluility of methane in en=ene is

42+ 17$mm g at constant temperature alculate the

soluility of methane at +7mm g pressure at same

temperature

CHEMICAL THERMODYNAMICS AND ENERGIES

Theory

1)ene the terms systemlt surroundinglt open systemlt close

systemlt isolated systemlt exothermic reactionslt endothermic

reactionslt extensive properties and intensive properties

2) Explain the term state function Give to examples of state

functions and to example of path function

3) Explain thermodynamics eCuilirium

4) istinguish eteen isothermal and adiaatic process

$) What is a reversile process What are its features

) ho that pressure times volume is eCual to or8

8112019 Chemistry Question 12sci (1)

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+) erive the expression for or8 hen a gas expands against

constant external pressure

) lassify the folloing reactions according to or8 done y the

systemlt on the system and no or8 done if pressure is constanta) 2g) H l2g) 2lg)

) 3D2g) 2D3g)

c) 2D2g) D2g)H 2D3g)

d) ampgD3s) H ampgDs) D2g)

e) 4D3s) H 2Dg) 22Dg)

5) What is the dierence dierence eteen and What is

the sign of for exothermic and endothermic reactions nder

hat circumstances

17) What are the sign convention for C and W

11) Explain the concept of maximum or8

12) free expansion of a gas results into no or8 Explain

13) erive the expression for maximum or8

14) ene enthalpy t constant pressure sho that A

1$) (t is di9cult to calculate lt hoever can e easily

determined Why Explain giving examples

1) tate rst la of thermodynamics Iustify its mathematical

eCuation

1+) Dtain the relationship eteen and for a chemical

reaction

1) What is the expression for or8 done in a chemical reaction

Explain the meaning of each term

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8112019 Chemistry Question 12sci (1)

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a) dissolution of sugar in hot coee

) separation of r and Fr from their mixture

c) spreading of fragrance hen a ottle of perfume is opened

d) Jo of heat from cold oKect to hot oKect

e) heat transfer from ice to room at 2$

37) ene entropy Give its units What does entropy measures

31)Explain ho entropy changes in the folloing processes

a) free=ing of liCuid

) sulimation of solid

c) dissolving of ater in sugar

d) condensation of vapour

32) Which memer of the folloing pairs have larger entropy

Why

a) D2s) or D2g)

) 3Dl) or 2$D2$l)

c) Dg) or 2D4g)

d) eg) or Frg)

e) as) or als)

33) Why is it more convenience to predict spontaneity of reaction

in terms of Gsys rather than total34) ene Gis energy and change in Gis energy What are

the units of Gis energy

3$) tate second la of thermodynamics in terms of entropy and

express it mathematically

8112019 Chemistry Question 12sci (1)

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3) tate third la of thermodynamics What is its usefulness

3+) Why is it impossile for any sustance to have an asolute

entropy =ero at temperature greater than 7F

3) (t is impossile for a reaction to e spontaneous yetexothermic Explain ith example

35) (s it possile for a reaction to e nonspontaneous yet

exothermic Explain ith example

47) -redict the sign of in the folloing process Give reasons

for your anser

a) 2D4g) 2D2g)) 6e2D3s) H 32g) 26es) H 32Dg)

c) 2g) H 32g) 23g)

d) ampgD3s) 23g)

e) D2g) D2s)

f) l2g) 2lg)

41) What can e said aout the spontaneity of reactions hen

a) and are oth positive

) and oth are negative

c) is positive and is negative

d) is negative and is positive

42) (dentify hich memer of the folloing pairs has largerentropy Why

a) eg) in a volume of 1 or eg) in a volume of $ oth at 2$

) D2g) at 1atm or D2g) at 17atm oth at the same temperature

8112019 Chemistry Question 12sci (1)

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c) 2$Dl) or 2$Dg)

d) $ moles of e or 2 moles of e

43) What are the signs of for the folloing reaction

Explain ith reasons

2g) 2g)

44) erive the relationship eteen G and total

4$) Iustify the inclusion of Crev and 0 in the denition of entropylt

A Crevgt 0

4) 0he increase in entropy of a system alone does not guarantee

the spontaneity of a process Explain

4+) 0he criterion of spontaneity in terms of Gis energy is the

same as that laid don y second la of thermodynamic o

PROBLEMS

1) 0hree moles of an ideal gas are expanded isothermally from a

volume of 377cm3 to 2$ at 377F against a pressure of 15atm

alculate the or8 done in atm and Koules2) Dne mole of an ideal gas is compressed from $77cm3 against a

constant pressure of 121 17$-a 0he or8 involved in the

process is 3$7I alculate the nal volume

3) alculate the maximum or8 hen 24g of oxygen are

expanded isothermally and reversily from a pressure of 1

17$-a to 1778-a at 25F

4) 0hree moles of an ideal gas are compressed isothermally andreversily to a volume of 2 0he or8 done is 2538I at 22

alculate the initial volume of a gas

8112019 Chemistry Question 12sci (1)

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$) 2 172 8g of nitrogen is expanded isothermally and

reversily at 377F from 1$1$ 17$ m 2 hen the or8 done is

found to e 1+338 I 6ind the nal pressure

) sample of a gas asors 47778I of heata) if volume remains constantlt hat is

) uppose that in addition to asorption of heat y the samplelt

the surrounding does 27778I of or8 on the samplelt hat is

c) uppose that as the original sample asors heatlt it expands

against atmospheric pressure and does 778 I of or8 on its

surroundings What is

+) alculate the or8 done in each of the folloing reactions

tate hether or8 is done on or y the system

a) 0he oxidation of one mole of D2 at $7

2D2g) H D2g) 2D3g)

) decomposition of 2 moles of 4D3 at 177

4D3s) 2Dg) H 22Dg)

) 0he enthalpy change for the reaction

24g) H 2g) 2g) is 27I hen 177m of ethylene and

177m of 2 react at 1atm pressure alculate the pressure

volume or8 and

5) alculate standard enthalpy of the reaction

6e2D3s) H 3Dg) 26es) H 3D2g) from the folloing data

f 76e2D3)A2428Imol1ltf 7D)A117$8Imol1lt

f 7D2)A353$8Imol1

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8112019 Chemistry Question 12sci (1)

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Electro chemitry

Theory

1ene the terms resistivitylt conductivity and molar

conductivity Give its ( units

2Explain the terms conductivity and molar conductivity o are

they interrelated

3Why does conductivity of s solution decrease on dilution of a

solution

4o does molar conductivity of an electrolyte vary ith

concentration

$o does the variation in molar conductivity of an electrolyte

ith concentration diers for strong and ea8 electrolytes

Explain the dierent ehaviour of strong and ea8 electrolytes

toards the variation of conductivity ith concentration

+tate and explain Fohlrausch la of independent migration of

ions o it is useful to determine the molar conductivity of ea8

electrolytes at =ero concentration

o is the molar conductivity of strong electrolytes at =ero

concentration determined y graphical method Why is this

method not useful for ea8 electrolytes

5What is cell constant What is its unit o is it determined

17ene anode and cathode

11 Why is cathode in electrolytic cell considered to e negative

and anode positive

12 -redict the half cell reactions that occur hen fused Fl is

electroly=ed in a cell ith inert electrodes What is the overall cell

reaction

8112019 Chemistry Question 12sci (1)

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13 tate 6aradayBs las of electrolysis

14o ill you calculate the numer of moles of electrons

actually passed and mass of the sustance produced during

electrolysis of a salt solution using reaction stoichiometry1$o many electrons ill have a total charge of 1 coulom

1 o many faradayBs ould e reCuired to plate out 177 mole

of free metal from the folloing cations

a) ampg2H

) r3H

c) -2H

d) uH

1+ ene coulom and faraday

1 escrie the electrolysis of molten al using inert

electrodes

15 What is the dierence eteen electrolytic cell and voltaic

cell

27 Why is anode in galvanic cell considered to e negative and

cathode positive electrode

21 8etch the cell for the electrolysis of molten al (ndicate

cathodelt anode and their signs ho the Jo of electrons and

ions

22 What is salt ridge What are its functions in galvanic cell

23 What are the conventions used to rite cell diagramcell

formula)

24 escrie the construction of aniel cell Write electrode half

reactions and net cell reaction in aniel cell

8112019 Chemistry Question 12sci (1)

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2$ escrie the folloing types of electrodes giving one

examplelt ith reference to formulationlt electrode reaction and

ernst eCuation for electrode potential

a) metalsparingly salt electrode) gas electrode

2 What is redox electrode Give one example ith formulationlt

electrode reaction and ernst eCuation for electrode potential

2+ ene the terms oxidation potentiallt reduction potential and

cell potential

2 What conditions are reCuired for a cell potential to e calledstandard cell potential

25 6ormulate a cell for each of the folloing electrode reactions

a) n2H aC) H 2gl s) L n4H aC) H 2gs) H2l aC)

) ampg s) H r2l) L ampg2H aC) H 2r aC)

37 6ormulate a cell from the folloing electrode reactions

a) l2g) H 2e L 2l aC)

) 2( aC) L (2s) H 2e

31 What are standard electrode potential and standard emf of

the galvanic cell

32 Write ernst eCuation and explain the terms involved in it

What part of the eCuation represents the correction factor for

nonstandard state conditions

33 Write ernst eCuation for the folloing reactions

a) rs) H 36e3H aC) L r3H aC) H 36e2H aC)

) l3H aC) H 3e L l s)

8112019 Chemistry Question 12sci (1)

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34 onsider the folloing E7 values and half reactions

(2s) H 2e L 2( aC) E7A7$3$M

u2H aC) H 2e L u s) E7A733+M

d2H aC) H 2e L ds) E7A77473

a) Which of the metals or nonmetals or ions is the strongest

oxidi=ing agent and hich is the strongest reducing agent

) 0he half reactions can e used to construct three galvanic

cells Which ill have the highest cell potential

3$ -redict hether

a) gH can oxidi=e - to -2H under standard state condition

) E7gA7+55M and E7

-A712M

3 -redict hether the folloing reactions occur under standard

state conditions

a) Dxidation of gs) y l2g) E7gA7Mlt E7

l2A13M

) eduction of 6e

3H

to 6e

2H

y us) E

7

6e3Hlt 6e2H A 7++MltE7uA14M

3+ 8etch and descrie the operation of

a) dry cell

) 2D2 fuel cell

3 What are the advantages and disadvantages of fuel cells

35 8etch lead storage cell

47 Write electrode reaction and overall cell reaction during the

operation of lead storage cell

41 Write electrode reaction and overall cell reaction hen lead

accumulator ehaves as an electrolytic cell

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42 o can ernst eCuation e used to sho that electrode

potential is eCual to the standard electrode potential y putting

approximate values in ernst eCuation se u2HNd half cell for

illustration

43 o are G7lt E7cell and eCuilirium constant related for a

particular reaction

44 Why is eCuilirium constant related to E7cell and not Ecell

4$ G7 for a redox reaction depends on the numer of electrons

transferred Explain

4 o does the eCuiliriumlt G7An6E7 explain that an

electrical potential is an intensive property

4+ Write shorthand notation for the cell for each of the folloing

reactions

a) u2H aC) H 2gs) H 2r L u s) H 2gr s)

) n2H aC) is oxidi=ed y r2 l)

4 rrange the folloing reducing agents in order of increasing

strength under standard state conditions 0he standard potentialsfor the reduction half reactions are given

gH aC) 7M)lt l3H aC) 1M)lt 62g) 2+M)lt l2g) 13M)lt

(2s) 7$4M)lt d2H aC) 74M)

45 rrange the folloing oxidi=ing agents in order of increasing

strength under standard state conditions 0he standard potentials

for the reduction half reactions are given

ls) 1M)lt l aC) 13M)lt us) 734M)lt 6es)744M)lt r

aC) 175M)lt is) 72M)

$7 Which species in each of the folloing pairs is etter oxidi=ing

agent under standard state conditions standard potential are

given) Give reasons for your anser

8112019 Chemistry Question 12sci (1)

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a) r2l) 175M) or u3H 14M)

) H aC) or gH aC) 7M)

c) -2H aC) 713M) or o2H 72M)

d) l2 g) 13M) or r3H 7+4M)

$1 Which species in each of the folloing pairs is etter reducing

agent under standard conditions E7 values are given Give

reasons for your anser

a) Fs) 2353M) or ampgs) 23M)

) o2H aC) 11M) or (n s) 714M)

c) e3H aC) 11M) or 0i2H73+M)

d) gl) 7M) or is) 723M)

PROBLEMS

1 conductivity cell lled ith 771amp Fl given at 2$o the

resistance of 74ohms 0he conductivity of Fl at 2$

o

is 7777

CHEMISTRY

d f O DF EEampE0

1) What are dloc8 elements

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2) What are floc8 elements

3) Explain the meaning of

i) 0ransition series ii) (nner transition element

4) Explain the position of the folloing in periodic tale

i) dloc8 elements ii) anthanoids iii) ctinoids

$) Explain the oxidation state of 1st ro elements of transition

series

) Explain the oxidation states of lanthanoids and actinoids

+) Why do lanthanoids form coloured compounds ) Explainlt most of the transition metal compounds are

remar8aly coloured

5) Why chromium has electronic conguration 3d$ 4s1 and not 3d4

4s2

17) Why does copper sho anormal electronic conguration

11) Explainlt the trends in atomic and ionic si=es of lanthanoidsand also of 1st ro elements of transition series

12) What are actinoids

13) What are transuranic elements Write their name

14) Why transition elements sho tendency to form large numer

of complexes

1$) Explain the compounds of copper ((() are coloured ut thoseof =inc are colourless

1) o is potassium dichromate prepared from chrome ion

1+) Write the preparationlt properties and use of potassium

permanganate

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1) Explainlt hy -t(M) complexes are generally octahedral hile

-t(() complexes are sCuare planar

15) ierentiate eteen lanthanoids and actinoids

27) What are chemical tins Give examples

21) Explain hy Gd3H is colourless

COORDINATION COMPOUNDS

1) What is the dierence eteen doule salt and coordinationcompounds

2) Explainlt hy 6e4)2 D4)22D) is a salt ut F 4P6e)Q is a

complex compound

3) Write the formula of the folloing complexes

i) alcium hexa cyano ferrate (()

ii) iammine dichloro platinum

iii) is ethylene diammine) dichloro iridium ((() ion

iv) -entamine caronato chromium ((() D(E

v) 0risethylene diammine ) coalt((() sulphate

vi) iamine ethylene diammine nic8el (() acetate

4) Write the rules hich are applied hile riting the formulas of

coordination compounds

$) ene the terms

i) entral metal atomgtion

ii) igand

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iii) oordination compound

iv) oordination sphere

v) oordination numer

vi) oordination polyhedral

vii) omoleptic and heteroleptic complexes

viii) harge on the complexes

ix) oordination entity

) Write (- name of the folloing complexes

i) Pr2D)4 l2QD3

ii) P-ten)l4Q

iii) F 2Pi)4Q

iv) sP6el4Q

v) rl3-y)3

vi) F 3Po2D4)3Q

vii) Por2en)2Q

viii) P-tl4Q2

ix) Po2D))en)2Q2H

x) F 3Pl2D4)3Q

+) Explain the importance of principles of additive nomenclature

) (dentify the folloing ions y a simple test forming complex

compound

i) u2H ii) i2H iii) 6e3H iv) o2H

8112019 Chemistry Question 12sci (1)

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5) Dn the asis of WernerBs theory explainlt hy coalt amine

complexlt ol343 hen treated ith gD3 solution

precipitates only one ion even though there are three ions

17) alculate the eective atomic numer E) of the centralmetal atom in the folloing compounds

i) F 3P6e)Q ii) rD)

11) Write the postulates of WernerBs theory

12) Explain the onding in ol333 and ol3$3

13) Explain stereoisomerism in metal complexes ith coordination

numer 4 and 14) Why the tetrahedral complexes do not exhiit geometrical

isomerism

1$) ra cis and trans geometrical isomers of

i) dichlororomo iodo palladium (() ion

ii) P-t(()3)2l2Q

iii) Po((()3)l3Q

iv) Po((()3)42D)lQ2H

1) ra all possile geometrical isomers of P-t(M)

3)2-y)2l2Q2H ion

1+) Write oxidation statelt coordination numer and electronic

conguration of the metal atom in the folloing complexes

i) rl3-y)3 ii) F 4Pampn)Q

1) lassify the folloing ligands into monodentatelt polydentate

and amidentate

i) 3 ii) iii) iv) v) D2 vi) ethylene diammine

vii) oxalate

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viii) triaminotriethylamine

15) ol3$32D is a pin8 solidlt the solution of this salt is also

pin8 and formed 3mol of gl ith silver nitrate solution Dn

heating pin8 solidlt it loses one ater molecule and forms purplesolid having same ratio of o3l as that of pin8 solid 0he

purple solid hen dissolved in ater and treated ith forms 1 mol

of gl ra the structure and name of the pin8 and purple

solids

27) ame the octahedral complex ions

i) Po2D4) en)2QH ii) transPr)4 3)2Q

21) ra the structures of the folloing complexes

i) Pol4Q2 ii) Pampn3)Q2H iii) P-tlQ iv) iD)4 v) Pi)4Q2

22) (n an octahedral crystal eldlt dra the gure to sho splitting

of dorital

23) What are ea8 eld and strong eld ligands What is spectro

chemical series

24) Pi)4Q2 is diamagnetic hile Pr3)Q3H is paramagnetltexplain

2$) Dn the asis of valence ond theory explain the nature of

onding in the folloing complexes

i) Po6Q3 ii) Po2D4)3Q3

2) lue coloured copper sulphate solution gave folloing

experimental results Explain the same

i) With aCueous potassium chloride it gave right green solution

ii) With aCueous potassium Juoride it gave a green precipitate

2+) ra the structures of optically active isomers of Poen)3Q3H

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2) ra the geometrical and optical isomers of

i) Pol2en)2QH ii) Polen)23)Q2H

25) What is lin8age isomerism Explain ith an example

37) What are hydrate isomers Explain ith examples

31) Explain the structure of

i) upraammonium sulphate ii) Po3)Q3H

32) What are the limitations of valence ond theory

33) Explain the magnetic properties of coordination compounds

34) Write the salient features of crystal eld theory What are itslimitations

3$) Explain the octahedral geometry of complexes using crystal

eld theory

3) Write a note on colours in coordination compounds

3+) Explain the factors aecting the staility of coordination

compound3) Write rief the applications of coordination compounds

HALOGEN DERIVATIVES O ALANES AND ARENES

1) What are al8yl halides o are they classied

2) Write (- names of the folloing compounds

i)

ii) 2Al

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iii)

iv)

v)

vi) secutyl chloride

vii) neopentyl romide

viii) tutyl iodide

ix) isopropyl romide

3) o is ethyl romide prepared from

i) Ethyl alcohol ii) ethane iii) ethane

4)Write the preparation of isopropyl chloride using the folloing

reagents

i) -l3 ii) -l$ iii) l2 iv) l v) Dl2

$) o is group replaced y folloing functional rroups

i) OD ii) O iii) O iv) O2

) Write a note on

i) andmeyerBs reaction ii) Wurt= reaction iii) 6in8elstein reaction

iv) 6ittig reaction v) 6riedel raft reaction

+) (dentify and in the folloing

8112019 Chemistry Question 12sci (1)

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) Give the structures of the folloing compounds

i) 3romo2methyl pentane ii) 2romo3ethyl hexane iii) 1

holo utane

iv) pichloroen=ene v) 1lt1lt10richloroethane

5) student has performed an experiment in the laoratory e

mixed ater ith hexane and found to layers separated econd

time he mixed chloroform ith ater and he again found to

layers in the test tue Explain hich ill e upper layer and

hich one ill e loer layer in oth the experiments

17) onvert 1hloroutane into the folloing compounds

i) utane1ol ii) 1(odoutane iii) 3222 iv)

11) 6or each pair of compoundslt state hich compound is etter

2 sustrate

i) 2romoutanelt isopropyl romide ii) 1(odo2lt2dimethyl

propane or isopropyl iodide

12) hoose the memer that ill react faster from the folloing

pairs y 1 mechanism

13) -redict the expected product of sustitution reaction

i) isoutyl chloride mH sodium ethoxide

ii) nutyl chloride H sodium

iii) 1hloro propane H aC potassium hydroxide

iv) aniline H aD2gt l

14) Write the products

i) $22A2 H r L

ii) $A2 H r

8112019 Chemistry Question 12sci (1)

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iii)

iv)

v)

1$) (dentify the chiral and achiral molecules

i)

ii)

iii)

1) iscuss 2 mechanism of methyl romide using aCueous

FD ra energy prole diagram1+) Write the mechanism of the reaction hen tutyl chloride is

treated ith aCueous FD ith energy prole diagram

1) ierentiate eteen 1 and 2 mechanism

15) Explain the nature of ond in

i) 322 ii)

27) What are uses of

i) 0 ii) (odoform iii) hloroform iv) aron tetrachloride

21) l8yl halides are polar and miscile ith aterlt explain

22) Which one of the folloing is more easily hydrolysed y

aCueous FD

$l$ and $2l

23) rrange the folloing groups in descending order 2lt D3lt

D3lt DD and l

24) ssign or conguration to each of the folloing

structures

8112019 Chemistry Question 12sci (1)

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i)

ii)

iii)

iv)

DDlt -ED E0E

1) What are alcohols o are they classied

2) What are monohydric alcohols o are they classied

4) Write the structures of folloing alcohols

i) 1Ethylcyclohexanol ii) ex3en2ol iii)yclohex2en1ol

iv) -entane1lt4diol

v) 2lt4imethylhexane1lt3lt$triol

$) Explain the folloing

i) -ropan1ol has higher oiling point than nutane

ii) ampethanol is more solule in ater than -ropan1ol

) Write the mechanism of hydration of ethylene to ethyl alcohol

+) -ropan1ol can not e prepared y acid catalyst hydration of

propenelt then ho is propene converted into propan1ol

)5) o is propanone converted into

i) -ropan2ol ii) 2ampethyl propan2ol

17) o ill you otain utan2ol from

8112019 Chemistry Question 12sci (1)

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i) -ropanal ii) utan2one iii) ut2ene

11) o is propan1ol prepared from

i) -ropanal ii) -ropanoic acid

12) o is cyclopentanol prepared from

i) yclopentanone ii) yclopentene

14) Write the mechanism of acid catalysed dehydration of ethanol

to give ethane

1$) Write the structure of aldehyde lt caroxylic acid and ester

that yield folloing alcohol

1+) o ill you prepare

i) 2ampethylutane1ol from an al8ene

ii) cyclohexylmethanol from a Grignard reagent

iii) 1phenylethanol from acetaldehyde

1) o are folloing conversions rought aout

i) en=yl chloride to en=yl alcohol

ii) en=yl alcohol to en=oic acid

iii) 1Ethylcyclohexanol from yclohexanone

15) What are phenols o are they classied

27)21) Give the structures and (- names of isomeric phenols

represented y the molecular formula 17D

22) o is phenol prepared from

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i) hloroen=ene ii) (sopropyl en=ene iii) en=ene sulphonic

acid iv) aniline

23 ) Explain the folloing

i) -henol is more acidic than phenol

ii) onitrophenol is more acidic than ocresol

iii) pnitrophenol is less volatile than onitrophenol

24) Explain the folloing reactions of phenol

i) FoleBs reaction ii) iemer0iemann reaction

2$) ame the reagents used to convert phenol intoi) picric acid ii) 2lt4lt0riromophenol iii) en=ene iv) ophenol

sulphonic acid

2) What is the action of folloing reagents on phenol i)

romine in 2 at lo temperature

ii) ilute nitric acid at room temperature iii) oncentrated

sulphuric acid at room temperature

2+) Give distinguish test eteen phenol and ethanol

2) What are ethers o are ethers classied

25) What is metamerism Give the structure and (- name of

metamers of 2ampethoxypropane

37) Write the mechanism for acidic dehydration of ethanol

31) o is diethyl ether prepared y continuous ethericationprocess Why is the process so called

32) o ill you prepared methoxyethane from

i) l8yl halide ii) ia=omethane

33) tate the important uses of i) -henol ii) diethyl ether

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34) Write the mechanism of action of hydrogen romide on tert

utyl methyl ether

3$) Explain the folloing reactions of anisole

i) romination ii) itration iii) 6riedelrafts al8ylation iv)6riedelrafts acylation

3) Explainlt i) 0he OD group attached to aromatic ring in

phenols and ii) 0he al8oxy group in al8yl aryl ethers are ortholt

para directing and activate the aromatic ring toars electrophilic

sustitution

3+) Write the chemical eCuations for Williamson synthesis of 2

Ethoxy2methypentane starting from ethanol and 2ampethylpentan2ol

3) n organic compound ith the formula 417D3 shos

properties of ether and alcohol hen treated ith an excess of

r yields only one compound 1lt2 diromomethane Write

structural formula of ether and that of alcohol

ALDEHYDES ETONES AND CABO$YLIC

ACID

1) Write the structure and give (- names of the folloing

compounds

i) chloropropionaldehyde

ii) Rhydroxyutyraldehyde

iii) isoutyraldehyde

iv) Rmethylvaleraldehyde

8112019 Chemistry Question 12sci (1)

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v) isopropyl methyl 8etone

vi) diisopropyl 8etone

vii) mromoen=aldehyde

viii) dien=yl 8etone

ix) divinyl 8etone

x) allyl methyl 8etone

xi) ethyl phenyl 8etone

xii) nutyrophenone

2) Write the structure of folloing compounds

i) 4ampethyl3nitroen=ophenone ii) 2ampethyl4oxopentanal iii)

3Dxopentanoic acid iv) 4chloropropiophenone v) 3

ampethoxyutanal vi) 4ydroxycyclohaxane caraldehyde

3) o ill you prepare i) propiophenone from propanenitrile ii)

4chloroen=aldehyde from 4chlorotoluene iii)

yclohaxanecaraldehyde from cyclohexylmethanol iv) 4

methoxyacetophenone from anisole v) 4methylen=aldehydefrom toluene

4) rrange the folloing compounds in the increasing order of

their oiling points

i) dimethyl etherlt ethyl alcohollt propanelt acetaldehyde

ii) acetonelt npropyl alcohollt ethyl methyl alcohol and nutane

$) What is the action of hydrogen cyanide in asic medium on i)utanone ii) 2lt4dichloroen=aldehyde

) What is the action of folloing compounds on cyclohexanone in

presence of dry hydrogen chloride

i) ethyl alcohol ii) ethylene glycol

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+) Write the structure of product in the folloing reactions

i) 322D3

ii) $2D3

) Write the structures of caronyl compounds and ammonia

derivatives that comine to give folloing imines

i)

ii)

iii)

iv)v)

vi)

5) Write the chemical eCuations for aldol condensation or

anni==aro reaction that folloing compounds undergo

i) -ropanal ii) 2ampethylpropanal iii) -entanal iv) 3

ampethylutanal v) cetophenonevi) pampethoxyen=aldehyde vii) 2ampethylcyclohaxanone viii)

chloral ix) yclopentanone

x) -henyl acetaldehyde xi) 1-henylpropan1one

17) Write the structure of the maKor product of the folloing

crossed aldol condensation

i) formaldehyde and propionaldehydeii) en=aldehyde ith acetone

11) (dentify the compounds SBlt SB and SB in the folloing

reactions and rerite the complete eCuations

i)

8112019 Chemistry Question 12sci (1)

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ii)

12)o ill you eect folloing tostep conversions

i) -ropanal into utanone ii) utanone into ut2ene iii)

en=ene into mromoacetophenone iv) ex3yne into exan

3one v) en=oic acid into mnitroen=ylalcohol

13) o ill you convert en=aldehyde into folloing compounds

ampore than one steps may e reCuired

i) en=ophenone ii) en=oic acid iii) 3-henylpropan1ol iv)hydroxyphenylacetic acid

14) Give a chemical test to distinguish eteen folloing pairs of

compounds

i) Ethanal and propanone ii) -rpopanal and propanone iii)

-entane2one and pentane3one

1$) Write the structure and (- names of folloing caroxylicacids

i) ltRdimethylutanoic acid ii) Rphenylutyric acid iii) 1038389

chloromethylvaleric acid

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+) alculate the mole fractionlt molality and molarity of D3 in a

solution containing 122 D3 Given density of

D3A173ggtcm3lt A1lt A14lt DA1

) ulphuric acid is 5$ y mass alculate mole fraction andmolarity of 2D4 of density 151ggtcm3

5) Cueous solution of aD is mar8ed 17gt) 0he density of

the solution is 17+7ggtcm3

alculatelt

i) molarity ii) molality and iii) mole fraction of aD and ater

aA23lt A1 and DA1

17) attery acid is 422amp aCueous 2D4 solutionlt and has density

of 121ggtcm3 What is the molality of 2D4 A1lt A32lt DA1

11) 0he vapour pressure of 21 solution of a nonelectrolyte in

ater at 177 is +$$mm g alculate the molar mass of the

solute

12) 0he vapour pressure of ater at 27 is 1+mm g alculate

the vapour pressure of a solution containing 2g of

urea2D2) in $7g of ater A14lt A12lt A1

13) (n an experimentlt 174g of mannitol ere dissolved in 177g

of ater 0he vapour pressure of ater as loered y 7375mm

g from 1+$3$mm g alculate the molar mass of mannitol

14) solution containing 7$12g of naphthalene molar mass A

121+ggtmol) in $7g of l4 gives a oiling point elevation of

7472F While a solution of 721g of un8non solute in the

same mass of the solvent gives a oiling point elevation of 74+F

6ind the molar mass of the un8non solute

F for l4A $73F 8g mol1 of solvent)

8112019 Chemistry Question 12sci (1)

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1$) alculate the mass in grams of an impurity of molar mass

177gmol1 hich ould e reCuired to raise the oiling point of

$7g of chloroform y737F

F for chloroformA 33F 8g mol

1

)1) oiling point of a solvent is 72 When 7415g of the solute

of molar mass 2$24g mol1 as dissolved in +$g of the solventlt

the oiling point of the solution as found to e 72$ 6ind

the molal elevation constant

1+) 7ml of glacial acetic acid ith density 17gm 1 is

dissolved in 18g ater and the solution fro=e at 7727$

alculate vant o factor and F f for ater is1F 8g mol1

1) enryBs la constant for soluility of methane in en=ene is

42+ 17$mm g at constant temperature alculate the

soluility of methane at +7mm g pressure at same

temperature

CHEMICAL THERMODYNAMICS AND ENERGIES

Theory

1)ene the terms systemlt surroundinglt open systemlt close

systemlt isolated systemlt exothermic reactionslt endothermic

reactionslt extensive properties and intensive properties

2) Explain the term state function Give to examples of state

functions and to example of path function

3) Explain thermodynamics eCuilirium

4) istinguish eteen isothermal and adiaatic process

$) What is a reversile process What are its features

) ho that pressure times volume is eCual to or8

8112019 Chemistry Question 12sci (1)

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+) erive the expression for or8 hen a gas expands against

constant external pressure

) lassify the folloing reactions according to or8 done y the

systemlt on the system and no or8 done if pressure is constanta) 2g) H l2g) 2lg)

) 3D2g) 2D3g)

c) 2D2g) D2g)H 2D3g)

d) ampgD3s) H ampgDs) D2g)

e) 4D3s) H 2Dg) 22Dg)

5) What is the dierence dierence eteen and What is

the sign of for exothermic and endothermic reactions nder

hat circumstances

17) What are the sign convention for C and W

11) Explain the concept of maximum or8

12) free expansion of a gas results into no or8 Explain

13) erive the expression for maximum or8

14) ene enthalpy t constant pressure sho that A

1$) (t is di9cult to calculate lt hoever can e easily

determined Why Explain giving examples

1) tate rst la of thermodynamics Iustify its mathematical

eCuation

1+) Dtain the relationship eteen and for a chemical

reaction

1) What is the expression for or8 done in a chemical reaction

Explain the meaning of each term

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a) dissolution of sugar in hot coee

) separation of r and Fr from their mixture

c) spreading of fragrance hen a ottle of perfume is opened

d) Jo of heat from cold oKect to hot oKect

e) heat transfer from ice to room at 2$

37) ene entropy Give its units What does entropy measures

31)Explain ho entropy changes in the folloing processes

a) free=ing of liCuid

) sulimation of solid

c) dissolving of ater in sugar

d) condensation of vapour

32) Which memer of the folloing pairs have larger entropy

Why

a) D2s) or D2g)

) 3Dl) or 2$D2$l)

c) Dg) or 2D4g)

d) eg) or Frg)

e) as) or als)

33) Why is it more convenience to predict spontaneity of reaction

in terms of Gsys rather than total34) ene Gis energy and change in Gis energy What are

the units of Gis energy

3$) tate second la of thermodynamics in terms of entropy and

express it mathematically

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3) tate third la of thermodynamics What is its usefulness

3+) Why is it impossile for any sustance to have an asolute

entropy =ero at temperature greater than 7F

3) (t is impossile for a reaction to e spontaneous yetexothermic Explain ith example

35) (s it possile for a reaction to e nonspontaneous yet

exothermic Explain ith example

47) -redict the sign of in the folloing process Give reasons

for your anser

a) 2D4g) 2D2g)) 6e2D3s) H 32g) 26es) H 32Dg)

c) 2g) H 32g) 23g)

d) ampgD3s) 23g)

e) D2g) D2s)

f) l2g) 2lg)

41) What can e said aout the spontaneity of reactions hen

a) and are oth positive

) and oth are negative

c) is positive and is negative

d) is negative and is positive

42) (dentify hich memer of the folloing pairs has largerentropy Why

a) eg) in a volume of 1 or eg) in a volume of $ oth at 2$

) D2g) at 1atm or D2g) at 17atm oth at the same temperature

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c) 2$Dl) or 2$Dg)

d) $ moles of e or 2 moles of e

43) What are the signs of for the folloing reaction

Explain ith reasons

2g) 2g)

44) erive the relationship eteen G and total

4$) Iustify the inclusion of Crev and 0 in the denition of entropylt

A Crevgt 0

4) 0he increase in entropy of a system alone does not guarantee

the spontaneity of a process Explain

4+) 0he criterion of spontaneity in terms of Gis energy is the

same as that laid don y second la of thermodynamic o

PROBLEMS

1) 0hree moles of an ideal gas are expanded isothermally from a

volume of 377cm3 to 2$ at 377F against a pressure of 15atm

alculate the or8 done in atm and Koules2) Dne mole of an ideal gas is compressed from $77cm3 against a

constant pressure of 121 17$-a 0he or8 involved in the

process is 3$7I alculate the nal volume

3) alculate the maximum or8 hen 24g of oxygen are

expanded isothermally and reversily from a pressure of 1

17$-a to 1778-a at 25F

4) 0hree moles of an ideal gas are compressed isothermally andreversily to a volume of 2 0he or8 done is 2538I at 22

alculate the initial volume of a gas

8112019 Chemistry Question 12sci (1)

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$) 2 172 8g of nitrogen is expanded isothermally and

reversily at 377F from 1$1$ 17$ m 2 hen the or8 done is

found to e 1+338 I 6ind the nal pressure

) sample of a gas asors 47778I of heata) if volume remains constantlt hat is

) uppose that in addition to asorption of heat y the samplelt

the surrounding does 27778I of or8 on the samplelt hat is

c) uppose that as the original sample asors heatlt it expands

against atmospheric pressure and does 778 I of or8 on its

surroundings What is

+) alculate the or8 done in each of the folloing reactions

tate hether or8 is done on or y the system

a) 0he oxidation of one mole of D2 at $7

2D2g) H D2g) 2D3g)

) decomposition of 2 moles of 4D3 at 177

4D3s) 2Dg) H 22Dg)

) 0he enthalpy change for the reaction

24g) H 2g) 2g) is 27I hen 177m of ethylene and

177m of 2 react at 1atm pressure alculate the pressure

volume or8 and

5) alculate standard enthalpy of the reaction

6e2D3s) H 3Dg) 26es) H 3D2g) from the folloing data

f 76e2D3)A2428Imol1ltf 7D)A117$8Imol1lt

f 7D2)A353$8Imol1

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8112019 Chemistry Question 12sci (1)

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Electro chemitry

Theory

1ene the terms resistivitylt conductivity and molar

conductivity Give its ( units

2Explain the terms conductivity and molar conductivity o are

they interrelated

3Why does conductivity of s solution decrease on dilution of a

solution

4o does molar conductivity of an electrolyte vary ith

concentration

$o does the variation in molar conductivity of an electrolyte

ith concentration diers for strong and ea8 electrolytes

Explain the dierent ehaviour of strong and ea8 electrolytes

toards the variation of conductivity ith concentration

+tate and explain Fohlrausch la of independent migration of

ions o it is useful to determine the molar conductivity of ea8

electrolytes at =ero concentration

o is the molar conductivity of strong electrolytes at =ero

concentration determined y graphical method Why is this

method not useful for ea8 electrolytes

5What is cell constant What is its unit o is it determined

17ene anode and cathode

11 Why is cathode in electrolytic cell considered to e negative

and anode positive

12 -redict the half cell reactions that occur hen fused Fl is

electroly=ed in a cell ith inert electrodes What is the overall cell

reaction

8112019 Chemistry Question 12sci (1)

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13 tate 6aradayBs las of electrolysis

14o ill you calculate the numer of moles of electrons

actually passed and mass of the sustance produced during

electrolysis of a salt solution using reaction stoichiometry1$o many electrons ill have a total charge of 1 coulom

1 o many faradayBs ould e reCuired to plate out 177 mole

of free metal from the folloing cations

a) ampg2H

) r3H

c) -2H

d) uH

1+ ene coulom and faraday

1 escrie the electrolysis of molten al using inert

electrodes

15 What is the dierence eteen electrolytic cell and voltaic

cell

27 Why is anode in galvanic cell considered to e negative and

cathode positive electrode

21 8etch the cell for the electrolysis of molten al (ndicate

cathodelt anode and their signs ho the Jo of electrons and

ions

22 What is salt ridge What are its functions in galvanic cell

23 What are the conventions used to rite cell diagramcell

formula)

24 escrie the construction of aniel cell Write electrode half

reactions and net cell reaction in aniel cell

8112019 Chemistry Question 12sci (1)

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2$ escrie the folloing types of electrodes giving one

examplelt ith reference to formulationlt electrode reaction and

ernst eCuation for electrode potential

a) metalsparingly salt electrode) gas electrode

2 What is redox electrode Give one example ith formulationlt

electrode reaction and ernst eCuation for electrode potential

2+ ene the terms oxidation potentiallt reduction potential and

cell potential

2 What conditions are reCuired for a cell potential to e calledstandard cell potential

25 6ormulate a cell for each of the folloing electrode reactions

a) n2H aC) H 2gl s) L n4H aC) H 2gs) H2l aC)

) ampg s) H r2l) L ampg2H aC) H 2r aC)

37 6ormulate a cell from the folloing electrode reactions

a) l2g) H 2e L 2l aC)

) 2( aC) L (2s) H 2e

31 What are standard electrode potential and standard emf of

the galvanic cell

32 Write ernst eCuation and explain the terms involved in it

What part of the eCuation represents the correction factor for

nonstandard state conditions

33 Write ernst eCuation for the folloing reactions

a) rs) H 36e3H aC) L r3H aC) H 36e2H aC)

) l3H aC) H 3e L l s)

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34 onsider the folloing E7 values and half reactions

(2s) H 2e L 2( aC) E7A7$3$M

u2H aC) H 2e L u s) E7A733+M

d2H aC) H 2e L ds) E7A77473

a) Which of the metals or nonmetals or ions is the strongest

oxidi=ing agent and hich is the strongest reducing agent

) 0he half reactions can e used to construct three galvanic

cells Which ill have the highest cell potential

3$ -redict hether

a) gH can oxidi=e - to -2H under standard state condition

) E7gA7+55M and E7

-A712M

3 -redict hether the folloing reactions occur under standard

state conditions

a) Dxidation of gs) y l2g) E7gA7Mlt E7

l2A13M

) eduction of 6e

3H

to 6e

2H

y us) E

7

6e3Hlt 6e2H A 7++MltE7uA14M

3+ 8etch and descrie the operation of

a) dry cell

) 2D2 fuel cell

3 What are the advantages and disadvantages of fuel cells

35 8etch lead storage cell

47 Write electrode reaction and overall cell reaction during the

operation of lead storage cell

41 Write electrode reaction and overall cell reaction hen lead

accumulator ehaves as an electrolytic cell

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42 o can ernst eCuation e used to sho that electrode

potential is eCual to the standard electrode potential y putting

approximate values in ernst eCuation se u2HNd half cell for

illustration

43 o are G7lt E7cell and eCuilirium constant related for a

particular reaction

44 Why is eCuilirium constant related to E7cell and not Ecell

4$ G7 for a redox reaction depends on the numer of electrons

transferred Explain

4 o does the eCuiliriumlt G7An6E7 explain that an

electrical potential is an intensive property

4+ Write shorthand notation for the cell for each of the folloing

reactions

a) u2H aC) H 2gs) H 2r L u s) H 2gr s)

) n2H aC) is oxidi=ed y r2 l)

4 rrange the folloing reducing agents in order of increasing

strength under standard state conditions 0he standard potentialsfor the reduction half reactions are given

gH aC) 7M)lt l3H aC) 1M)lt 62g) 2+M)lt l2g) 13M)lt

(2s) 7$4M)lt d2H aC) 74M)

45 rrange the folloing oxidi=ing agents in order of increasing

strength under standard state conditions 0he standard potentials

for the reduction half reactions are given

ls) 1M)lt l aC) 13M)lt us) 734M)lt 6es)744M)lt r

aC) 175M)lt is) 72M)

$7 Which species in each of the folloing pairs is etter oxidi=ing

agent under standard state conditions standard potential are

given) Give reasons for your anser

8112019 Chemistry Question 12sci (1)

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a) r2l) 175M) or u3H 14M)

) H aC) or gH aC) 7M)

c) -2H aC) 713M) or o2H 72M)

d) l2 g) 13M) or r3H 7+4M)

$1 Which species in each of the folloing pairs is etter reducing

agent under standard conditions E7 values are given Give

reasons for your anser

a) Fs) 2353M) or ampgs) 23M)

) o2H aC) 11M) or (n s) 714M)

c) e3H aC) 11M) or 0i2H73+M)

d) gl) 7M) or is) 723M)

PROBLEMS

1 conductivity cell lled ith 771amp Fl given at 2$o the

resistance of 74ohms 0he conductivity of Fl at 2$

o

is 7777

CHEMISTRY

d f O DF EEampE0

1) What are dloc8 elements

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2) What are floc8 elements

3) Explain the meaning of

i) 0ransition series ii) (nner transition element

4) Explain the position of the folloing in periodic tale

i) dloc8 elements ii) anthanoids iii) ctinoids

$) Explain the oxidation state of 1st ro elements of transition

series

) Explain the oxidation states of lanthanoids and actinoids

+) Why do lanthanoids form coloured compounds ) Explainlt most of the transition metal compounds are

remar8aly coloured

5) Why chromium has electronic conguration 3d$ 4s1 and not 3d4

4s2

17) Why does copper sho anormal electronic conguration

11) Explainlt the trends in atomic and ionic si=es of lanthanoidsand also of 1st ro elements of transition series

12) What are actinoids

13) What are transuranic elements Write their name

14) Why transition elements sho tendency to form large numer

of complexes

1$) Explain the compounds of copper ((() are coloured ut thoseof =inc are colourless

1) o is potassium dichromate prepared from chrome ion

1+) Write the preparationlt properties and use of potassium

permanganate

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1) Explainlt hy -t(M) complexes are generally octahedral hile

-t(() complexes are sCuare planar

15) ierentiate eteen lanthanoids and actinoids

27) What are chemical tins Give examples

21) Explain hy Gd3H is colourless

COORDINATION COMPOUNDS

1) What is the dierence eteen doule salt and coordinationcompounds

2) Explainlt hy 6e4)2 D4)22D) is a salt ut F 4P6e)Q is a

complex compound

3) Write the formula of the folloing complexes

i) alcium hexa cyano ferrate (()

ii) iammine dichloro platinum

iii) is ethylene diammine) dichloro iridium ((() ion

iv) -entamine caronato chromium ((() D(E

v) 0risethylene diammine ) coalt((() sulphate

vi) iamine ethylene diammine nic8el (() acetate

4) Write the rules hich are applied hile riting the formulas of

coordination compounds

$) ene the terms

i) entral metal atomgtion

ii) igand

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iii) oordination compound

iv) oordination sphere

v) oordination numer

vi) oordination polyhedral

vii) omoleptic and heteroleptic complexes

viii) harge on the complexes

ix) oordination entity

) Write (- name of the folloing complexes

i) Pr2D)4 l2QD3

ii) P-ten)l4Q

iii) F 2Pi)4Q

iv) sP6el4Q

v) rl3-y)3

vi) F 3Po2D4)3Q

vii) Por2en)2Q

viii) P-tl4Q2

ix) Po2D))en)2Q2H

x) F 3Pl2D4)3Q

+) Explain the importance of principles of additive nomenclature

) (dentify the folloing ions y a simple test forming complex

compound

i) u2H ii) i2H iii) 6e3H iv) o2H

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5) Dn the asis of WernerBs theory explainlt hy coalt amine

complexlt ol343 hen treated ith gD3 solution

precipitates only one ion even though there are three ions

17) alculate the eective atomic numer E) of the centralmetal atom in the folloing compounds

i) F 3P6e)Q ii) rD)

11) Write the postulates of WernerBs theory

12) Explain the onding in ol333 and ol3$3

13) Explain stereoisomerism in metal complexes ith coordination

numer 4 and 14) Why the tetrahedral complexes do not exhiit geometrical

isomerism

1$) ra cis and trans geometrical isomers of

i) dichlororomo iodo palladium (() ion

ii) P-t(()3)2l2Q

iii) Po((()3)l3Q

iv) Po((()3)42D)lQ2H

1) ra all possile geometrical isomers of P-t(M)

3)2-y)2l2Q2H ion

1+) Write oxidation statelt coordination numer and electronic

conguration of the metal atom in the folloing complexes

i) rl3-y)3 ii) F 4Pampn)Q

1) lassify the folloing ligands into monodentatelt polydentate

and amidentate

i) 3 ii) iii) iv) v) D2 vi) ethylene diammine

vii) oxalate

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viii) triaminotriethylamine

15) ol3$32D is a pin8 solidlt the solution of this salt is also

pin8 and formed 3mol of gl ith silver nitrate solution Dn

heating pin8 solidlt it loses one ater molecule and forms purplesolid having same ratio of o3l as that of pin8 solid 0he

purple solid hen dissolved in ater and treated ith forms 1 mol

of gl ra the structure and name of the pin8 and purple

solids

27) ame the octahedral complex ions

i) Po2D4) en)2QH ii) transPr)4 3)2Q

21) ra the structures of the folloing complexes

i) Pol4Q2 ii) Pampn3)Q2H iii) P-tlQ iv) iD)4 v) Pi)4Q2

22) (n an octahedral crystal eldlt dra the gure to sho splitting

of dorital

23) What are ea8 eld and strong eld ligands What is spectro

chemical series

24) Pi)4Q2 is diamagnetic hile Pr3)Q3H is paramagnetltexplain

2$) Dn the asis of valence ond theory explain the nature of

onding in the folloing complexes

i) Po6Q3 ii) Po2D4)3Q3

2) lue coloured copper sulphate solution gave folloing

experimental results Explain the same

i) With aCueous potassium chloride it gave right green solution

ii) With aCueous potassium Juoride it gave a green precipitate

2+) ra the structures of optically active isomers of Poen)3Q3H

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2) ra the geometrical and optical isomers of

i) Pol2en)2QH ii) Polen)23)Q2H

25) What is lin8age isomerism Explain ith an example

37) What are hydrate isomers Explain ith examples

31) Explain the structure of

i) upraammonium sulphate ii) Po3)Q3H

32) What are the limitations of valence ond theory

33) Explain the magnetic properties of coordination compounds

34) Write the salient features of crystal eld theory What are itslimitations

3$) Explain the octahedral geometry of complexes using crystal

eld theory

3) Write a note on colours in coordination compounds

3+) Explain the factors aecting the staility of coordination

compound3) Write rief the applications of coordination compounds

HALOGEN DERIVATIVES O ALANES AND ARENES

1) What are al8yl halides o are they classied

2) Write (- names of the folloing compounds

i)

ii) 2Al

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iii)

iv)

v)

vi) secutyl chloride

vii) neopentyl romide

viii) tutyl iodide

ix) isopropyl romide

3) o is ethyl romide prepared from

i) Ethyl alcohol ii) ethane iii) ethane

4)Write the preparation of isopropyl chloride using the folloing

reagents

i) -l3 ii) -l$ iii) l2 iv) l v) Dl2

$) o is group replaced y folloing functional rroups

i) OD ii) O iii) O iv) O2

) Write a note on

i) andmeyerBs reaction ii) Wurt= reaction iii) 6in8elstein reaction

iv) 6ittig reaction v) 6riedel raft reaction

+) (dentify and in the folloing

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) Give the structures of the folloing compounds

i) 3romo2methyl pentane ii) 2romo3ethyl hexane iii) 1

holo utane

iv) pichloroen=ene v) 1lt1lt10richloroethane

5) student has performed an experiment in the laoratory e

mixed ater ith hexane and found to layers separated econd

time he mixed chloroform ith ater and he again found to

layers in the test tue Explain hich ill e upper layer and

hich one ill e loer layer in oth the experiments

17) onvert 1hloroutane into the folloing compounds

i) utane1ol ii) 1(odoutane iii) 3222 iv)

11) 6or each pair of compoundslt state hich compound is etter

2 sustrate

i) 2romoutanelt isopropyl romide ii) 1(odo2lt2dimethyl

propane or isopropyl iodide

12) hoose the memer that ill react faster from the folloing

pairs y 1 mechanism

13) -redict the expected product of sustitution reaction

i) isoutyl chloride mH sodium ethoxide

ii) nutyl chloride H sodium

iii) 1hloro propane H aC potassium hydroxide

iv) aniline H aD2gt l

14) Write the products

i) $22A2 H r L

ii) $A2 H r

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iii)

iv)

v)

1$) (dentify the chiral and achiral molecules

i)

ii)

iii)

1) iscuss 2 mechanism of methyl romide using aCueous

FD ra energy prole diagram1+) Write the mechanism of the reaction hen tutyl chloride is

treated ith aCueous FD ith energy prole diagram

1) ierentiate eteen 1 and 2 mechanism

15) Explain the nature of ond in

i) 322 ii)

27) What are uses of

i) 0 ii) (odoform iii) hloroform iv) aron tetrachloride

21) l8yl halides are polar and miscile ith aterlt explain

22) Which one of the folloing is more easily hydrolysed y

aCueous FD

$l$ and $2l

23) rrange the folloing groups in descending order 2lt D3lt

D3lt DD and l

24) ssign or conguration to each of the folloing

structures

8112019 Chemistry Question 12sci (1)

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i)

ii)

iii)

iv)

DDlt -ED E0E

1) What are alcohols o are they classied

2) What are monohydric alcohols o are they classied

4) Write the structures of folloing alcohols

i) 1Ethylcyclohexanol ii) ex3en2ol iii)yclohex2en1ol

iv) -entane1lt4diol

v) 2lt4imethylhexane1lt3lt$triol

$) Explain the folloing

i) -ropan1ol has higher oiling point than nutane

ii) ampethanol is more solule in ater than -ropan1ol

) Write the mechanism of hydration of ethylene to ethyl alcohol

+) -ropan1ol can not e prepared y acid catalyst hydration of

propenelt then ho is propene converted into propan1ol

)5) o is propanone converted into

i) -ropan2ol ii) 2ampethyl propan2ol

17) o ill you otain utan2ol from

8112019 Chemistry Question 12sci (1)

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i) -ropanal ii) utan2one iii) ut2ene

11) o is propan1ol prepared from

i) -ropanal ii) -ropanoic acid

12) o is cyclopentanol prepared from

i) yclopentanone ii) yclopentene

14) Write the mechanism of acid catalysed dehydration of ethanol

to give ethane

1$) Write the structure of aldehyde lt caroxylic acid and ester

that yield folloing alcohol

1+) o ill you prepare

i) 2ampethylutane1ol from an al8ene

ii) cyclohexylmethanol from a Grignard reagent

iii) 1phenylethanol from acetaldehyde

1) o are folloing conversions rought aout

i) en=yl chloride to en=yl alcohol

ii) en=yl alcohol to en=oic acid

iii) 1Ethylcyclohexanol from yclohexanone

15) What are phenols o are they classied

27)21) Give the structures and (- names of isomeric phenols

represented y the molecular formula 17D

22) o is phenol prepared from

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i) hloroen=ene ii) (sopropyl en=ene iii) en=ene sulphonic

acid iv) aniline

23 ) Explain the folloing

i) -henol is more acidic than phenol

ii) onitrophenol is more acidic than ocresol

iii) pnitrophenol is less volatile than onitrophenol

24) Explain the folloing reactions of phenol

i) FoleBs reaction ii) iemer0iemann reaction

2$) ame the reagents used to convert phenol intoi) picric acid ii) 2lt4lt0riromophenol iii) en=ene iv) ophenol

sulphonic acid

2) What is the action of folloing reagents on phenol i)

romine in 2 at lo temperature

ii) ilute nitric acid at room temperature iii) oncentrated

sulphuric acid at room temperature

2+) Give distinguish test eteen phenol and ethanol

2) What are ethers o are ethers classied

25) What is metamerism Give the structure and (- name of

metamers of 2ampethoxypropane

37) Write the mechanism for acidic dehydration of ethanol

31) o is diethyl ether prepared y continuous ethericationprocess Why is the process so called

32) o ill you prepared methoxyethane from

i) l8yl halide ii) ia=omethane

33) tate the important uses of i) -henol ii) diethyl ether

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34) Write the mechanism of action of hydrogen romide on tert

utyl methyl ether

3$) Explain the folloing reactions of anisole

i) romination ii) itration iii) 6riedelrafts al8ylation iv)6riedelrafts acylation

3) Explainlt i) 0he OD group attached to aromatic ring in

phenols and ii) 0he al8oxy group in al8yl aryl ethers are ortholt

para directing and activate the aromatic ring toars electrophilic

sustitution

3+) Write the chemical eCuations for Williamson synthesis of 2

Ethoxy2methypentane starting from ethanol and 2ampethylpentan2ol

3) n organic compound ith the formula 417D3 shos

properties of ether and alcohol hen treated ith an excess of

r yields only one compound 1lt2 diromomethane Write

structural formula of ether and that of alcohol

ALDEHYDES ETONES AND CABO$YLIC

ACID

1) Write the structure and give (- names of the folloing

compounds

i) chloropropionaldehyde

ii) Rhydroxyutyraldehyde

iii) isoutyraldehyde

iv) Rmethylvaleraldehyde

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v) isopropyl methyl 8etone

vi) diisopropyl 8etone

vii) mromoen=aldehyde

viii) dien=yl 8etone

ix) divinyl 8etone

x) allyl methyl 8etone

xi) ethyl phenyl 8etone

xii) nutyrophenone

2) Write the structure of folloing compounds

i) 4ampethyl3nitroen=ophenone ii) 2ampethyl4oxopentanal iii)

3Dxopentanoic acid iv) 4chloropropiophenone v) 3

ampethoxyutanal vi) 4ydroxycyclohaxane caraldehyde

3) o ill you prepare i) propiophenone from propanenitrile ii)

4chloroen=aldehyde from 4chlorotoluene iii)

yclohaxanecaraldehyde from cyclohexylmethanol iv) 4

methoxyacetophenone from anisole v) 4methylen=aldehydefrom toluene

4) rrange the folloing compounds in the increasing order of

their oiling points

i) dimethyl etherlt ethyl alcohollt propanelt acetaldehyde

ii) acetonelt npropyl alcohollt ethyl methyl alcohol and nutane

$) What is the action of hydrogen cyanide in asic medium on i)utanone ii) 2lt4dichloroen=aldehyde

) What is the action of folloing compounds on cyclohexanone in

presence of dry hydrogen chloride

i) ethyl alcohol ii) ethylene glycol

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+) Write the structure of product in the folloing reactions

i) 322D3

ii) $2D3

) Write the structures of caronyl compounds and ammonia

derivatives that comine to give folloing imines

i)

ii)

iii)

iv)v)

vi)

5) Write the chemical eCuations for aldol condensation or

anni==aro reaction that folloing compounds undergo

i) -ropanal ii) 2ampethylpropanal iii) -entanal iv) 3

ampethylutanal v) cetophenonevi) pampethoxyen=aldehyde vii) 2ampethylcyclohaxanone viii)

chloral ix) yclopentanone

x) -henyl acetaldehyde xi) 1-henylpropan1one

17) Write the structure of the maKor product of the folloing

crossed aldol condensation

i) formaldehyde and propionaldehydeii) en=aldehyde ith acetone

11) (dentify the compounds SBlt SB and SB in the folloing

reactions and rerite the complete eCuations

i)

8112019 Chemistry Question 12sci (1)

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ii)

12)o ill you eect folloing tostep conversions

i) -ropanal into utanone ii) utanone into ut2ene iii)

en=ene into mromoacetophenone iv) ex3yne into exan

3one v) en=oic acid into mnitroen=ylalcohol

13) o ill you convert en=aldehyde into folloing compounds

ampore than one steps may e reCuired

i) en=ophenone ii) en=oic acid iii) 3-henylpropan1ol iv)hydroxyphenylacetic acid

14) Give a chemical test to distinguish eteen folloing pairs of

compounds

i) Ethanal and propanone ii) -rpopanal and propanone iii)

-entane2one and pentane3one

1$) Write the structure and (- names of folloing caroxylicacids

i) ltRdimethylutanoic acid ii) Rphenylutyric acid iii) 1038389

chloromethylvaleric acid

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1$) alculate the mass in grams of an impurity of molar mass

177gmol1 hich ould e reCuired to raise the oiling point of

$7g of chloroform y737F

F for chloroformA 33F 8g mol

1

)1) oiling point of a solvent is 72 When 7415g of the solute

of molar mass 2$24g mol1 as dissolved in +$g of the solventlt

the oiling point of the solution as found to e 72$ 6ind

the molal elevation constant

1+) 7ml of glacial acetic acid ith density 17gm 1 is

dissolved in 18g ater and the solution fro=e at 7727$

alculate vant o factor and F f for ater is1F 8g mol1

1) enryBs la constant for soluility of methane in en=ene is

42+ 17$mm g at constant temperature alculate the

soluility of methane at +7mm g pressure at same

temperature

CHEMICAL THERMODYNAMICS AND ENERGIES

Theory

1)ene the terms systemlt surroundinglt open systemlt close

systemlt isolated systemlt exothermic reactionslt endothermic

reactionslt extensive properties and intensive properties

2) Explain the term state function Give to examples of state

functions and to example of path function

3) Explain thermodynamics eCuilirium

4) istinguish eteen isothermal and adiaatic process

$) What is a reversile process What are its features

) ho that pressure times volume is eCual to or8

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+) erive the expression for or8 hen a gas expands against

constant external pressure

) lassify the folloing reactions according to or8 done y the

systemlt on the system and no or8 done if pressure is constanta) 2g) H l2g) 2lg)

) 3D2g) 2D3g)

c) 2D2g) D2g)H 2D3g)

d) ampgD3s) H ampgDs) D2g)

e) 4D3s) H 2Dg) 22Dg)

5) What is the dierence dierence eteen and What is

the sign of for exothermic and endothermic reactions nder

hat circumstances

17) What are the sign convention for C and W

11) Explain the concept of maximum or8

12) free expansion of a gas results into no or8 Explain

13) erive the expression for maximum or8

14) ene enthalpy t constant pressure sho that A

1$) (t is di9cult to calculate lt hoever can e easily

determined Why Explain giving examples

1) tate rst la of thermodynamics Iustify its mathematical

eCuation

1+) Dtain the relationship eteen and for a chemical

reaction

1) What is the expression for or8 done in a chemical reaction

Explain the meaning of each term

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a) dissolution of sugar in hot coee

) separation of r and Fr from their mixture

c) spreading of fragrance hen a ottle of perfume is opened

d) Jo of heat from cold oKect to hot oKect

e) heat transfer from ice to room at 2$

37) ene entropy Give its units What does entropy measures

31)Explain ho entropy changes in the folloing processes

a) free=ing of liCuid

) sulimation of solid

c) dissolving of ater in sugar

d) condensation of vapour

32) Which memer of the folloing pairs have larger entropy

Why

a) D2s) or D2g)

) 3Dl) or 2$D2$l)

c) Dg) or 2D4g)

d) eg) or Frg)

e) as) or als)

33) Why is it more convenience to predict spontaneity of reaction

in terms of Gsys rather than total34) ene Gis energy and change in Gis energy What are

the units of Gis energy

3$) tate second la of thermodynamics in terms of entropy and

express it mathematically

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3) tate third la of thermodynamics What is its usefulness

3+) Why is it impossile for any sustance to have an asolute

entropy =ero at temperature greater than 7F

3) (t is impossile for a reaction to e spontaneous yetexothermic Explain ith example

35) (s it possile for a reaction to e nonspontaneous yet

exothermic Explain ith example

47) -redict the sign of in the folloing process Give reasons

for your anser

a) 2D4g) 2D2g)) 6e2D3s) H 32g) 26es) H 32Dg)

c) 2g) H 32g) 23g)

d) ampgD3s) 23g)

e) D2g) D2s)

f) l2g) 2lg)

41) What can e said aout the spontaneity of reactions hen

a) and are oth positive

) and oth are negative

c) is positive and is negative

d) is negative and is positive

42) (dentify hich memer of the folloing pairs has largerentropy Why

a) eg) in a volume of 1 or eg) in a volume of $ oth at 2$

) D2g) at 1atm or D2g) at 17atm oth at the same temperature

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c) 2$Dl) or 2$Dg)

d) $ moles of e or 2 moles of e

43) What are the signs of for the folloing reaction

Explain ith reasons

2g) 2g)

44) erive the relationship eteen G and total

4$) Iustify the inclusion of Crev and 0 in the denition of entropylt

A Crevgt 0

4) 0he increase in entropy of a system alone does not guarantee

the spontaneity of a process Explain

4+) 0he criterion of spontaneity in terms of Gis energy is the

same as that laid don y second la of thermodynamic o

PROBLEMS

1) 0hree moles of an ideal gas are expanded isothermally from a

volume of 377cm3 to 2$ at 377F against a pressure of 15atm

alculate the or8 done in atm and Koules2) Dne mole of an ideal gas is compressed from $77cm3 against a

constant pressure of 121 17$-a 0he or8 involved in the

process is 3$7I alculate the nal volume

3) alculate the maximum or8 hen 24g of oxygen are

expanded isothermally and reversily from a pressure of 1

17$-a to 1778-a at 25F

4) 0hree moles of an ideal gas are compressed isothermally andreversily to a volume of 2 0he or8 done is 2538I at 22

alculate the initial volume of a gas

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$) 2 172 8g of nitrogen is expanded isothermally and

reversily at 377F from 1$1$ 17$ m 2 hen the or8 done is

found to e 1+338 I 6ind the nal pressure

) sample of a gas asors 47778I of heata) if volume remains constantlt hat is

) uppose that in addition to asorption of heat y the samplelt

the surrounding does 27778I of or8 on the samplelt hat is

c) uppose that as the original sample asors heatlt it expands

against atmospheric pressure and does 778 I of or8 on its

surroundings What is

+) alculate the or8 done in each of the folloing reactions

tate hether or8 is done on or y the system

a) 0he oxidation of one mole of D2 at $7

2D2g) H D2g) 2D3g)

) decomposition of 2 moles of 4D3 at 177

4D3s) 2Dg) H 22Dg)

) 0he enthalpy change for the reaction

24g) H 2g) 2g) is 27I hen 177m of ethylene and

177m of 2 react at 1atm pressure alculate the pressure

volume or8 and

5) alculate standard enthalpy of the reaction

6e2D3s) H 3Dg) 26es) H 3D2g) from the folloing data

f 76e2D3)A2428Imol1ltf 7D)A117$8Imol1lt

f 7D2)A353$8Imol1

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8112019 Chemistry Question 12sci (1)

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Electro chemitry

Theory

1ene the terms resistivitylt conductivity and molar

conductivity Give its ( units

2Explain the terms conductivity and molar conductivity o are

they interrelated

3Why does conductivity of s solution decrease on dilution of a

solution

4o does molar conductivity of an electrolyte vary ith

concentration

$o does the variation in molar conductivity of an electrolyte

ith concentration diers for strong and ea8 electrolytes

Explain the dierent ehaviour of strong and ea8 electrolytes

toards the variation of conductivity ith concentration

+tate and explain Fohlrausch la of independent migration of

ions o it is useful to determine the molar conductivity of ea8

electrolytes at =ero concentration

o is the molar conductivity of strong electrolytes at =ero

concentration determined y graphical method Why is this

method not useful for ea8 electrolytes

5What is cell constant What is its unit o is it determined

17ene anode and cathode

11 Why is cathode in electrolytic cell considered to e negative

and anode positive

12 -redict the half cell reactions that occur hen fused Fl is

electroly=ed in a cell ith inert electrodes What is the overall cell

reaction

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13 tate 6aradayBs las of electrolysis

14o ill you calculate the numer of moles of electrons

actually passed and mass of the sustance produced during

electrolysis of a salt solution using reaction stoichiometry1$o many electrons ill have a total charge of 1 coulom

1 o many faradayBs ould e reCuired to plate out 177 mole

of free metal from the folloing cations

a) ampg2H

) r3H

c) -2H

d) uH

1+ ene coulom and faraday

1 escrie the electrolysis of molten al using inert

electrodes

15 What is the dierence eteen electrolytic cell and voltaic

cell

27 Why is anode in galvanic cell considered to e negative and

cathode positive electrode

21 8etch the cell for the electrolysis of molten al (ndicate

cathodelt anode and their signs ho the Jo of electrons and

ions

22 What is salt ridge What are its functions in galvanic cell

23 What are the conventions used to rite cell diagramcell

formula)

24 escrie the construction of aniel cell Write electrode half

reactions and net cell reaction in aniel cell

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2$ escrie the folloing types of electrodes giving one

examplelt ith reference to formulationlt electrode reaction and

ernst eCuation for electrode potential

a) metalsparingly salt electrode) gas electrode

2 What is redox electrode Give one example ith formulationlt

electrode reaction and ernst eCuation for electrode potential

2+ ene the terms oxidation potentiallt reduction potential and

cell potential

2 What conditions are reCuired for a cell potential to e calledstandard cell potential

25 6ormulate a cell for each of the folloing electrode reactions

a) n2H aC) H 2gl s) L n4H aC) H 2gs) H2l aC)

) ampg s) H r2l) L ampg2H aC) H 2r aC)

37 6ormulate a cell from the folloing electrode reactions

a) l2g) H 2e L 2l aC)

) 2( aC) L (2s) H 2e

31 What are standard electrode potential and standard emf of

the galvanic cell

32 Write ernst eCuation and explain the terms involved in it

What part of the eCuation represents the correction factor for

nonstandard state conditions

33 Write ernst eCuation for the folloing reactions

a) rs) H 36e3H aC) L r3H aC) H 36e2H aC)

) l3H aC) H 3e L l s)

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34 onsider the folloing E7 values and half reactions

(2s) H 2e L 2( aC) E7A7$3$M

u2H aC) H 2e L u s) E7A733+M

d2H aC) H 2e L ds) E7A77473

a) Which of the metals or nonmetals or ions is the strongest

oxidi=ing agent and hich is the strongest reducing agent

) 0he half reactions can e used to construct three galvanic

cells Which ill have the highest cell potential

3$ -redict hether

a) gH can oxidi=e - to -2H under standard state condition

) E7gA7+55M and E7

-A712M

3 -redict hether the folloing reactions occur under standard

state conditions

a) Dxidation of gs) y l2g) E7gA7Mlt E7

l2A13M

) eduction of 6e

3H

to 6e

2H

y us) E

7

6e3Hlt 6e2H A 7++MltE7uA14M

3+ 8etch and descrie the operation of

a) dry cell

) 2D2 fuel cell

3 What are the advantages and disadvantages of fuel cells

35 8etch lead storage cell

47 Write electrode reaction and overall cell reaction during the

operation of lead storage cell

41 Write electrode reaction and overall cell reaction hen lead

accumulator ehaves as an electrolytic cell

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42 o can ernst eCuation e used to sho that electrode

potential is eCual to the standard electrode potential y putting

approximate values in ernst eCuation se u2HNd half cell for

illustration

43 o are G7lt E7cell and eCuilirium constant related for a

particular reaction

44 Why is eCuilirium constant related to E7cell and not Ecell

4$ G7 for a redox reaction depends on the numer of electrons

transferred Explain

4 o does the eCuiliriumlt G7An6E7 explain that an

electrical potential is an intensive property

4+ Write shorthand notation for the cell for each of the folloing

reactions

a) u2H aC) H 2gs) H 2r L u s) H 2gr s)

) n2H aC) is oxidi=ed y r2 l)

4 rrange the folloing reducing agents in order of increasing

strength under standard state conditions 0he standard potentialsfor the reduction half reactions are given

gH aC) 7M)lt l3H aC) 1M)lt 62g) 2+M)lt l2g) 13M)lt

(2s) 7$4M)lt d2H aC) 74M)

45 rrange the folloing oxidi=ing agents in order of increasing

strength under standard state conditions 0he standard potentials

for the reduction half reactions are given

ls) 1M)lt l aC) 13M)lt us) 734M)lt 6es)744M)lt r

aC) 175M)lt is) 72M)

$7 Which species in each of the folloing pairs is etter oxidi=ing

agent under standard state conditions standard potential are

given) Give reasons for your anser

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a) r2l) 175M) or u3H 14M)

) H aC) or gH aC) 7M)

c) -2H aC) 713M) or o2H 72M)

d) l2 g) 13M) or r3H 7+4M)

$1 Which species in each of the folloing pairs is etter reducing

agent under standard conditions E7 values are given Give

reasons for your anser

a) Fs) 2353M) or ampgs) 23M)

) o2H aC) 11M) or (n s) 714M)

c) e3H aC) 11M) or 0i2H73+M)

d) gl) 7M) or is) 723M)

PROBLEMS

1 conductivity cell lled ith 771amp Fl given at 2$o the

resistance of 74ohms 0he conductivity of Fl at 2$

o

is 7777

CHEMISTRY

d f O DF EEampE0

1) What are dloc8 elements

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2) What are floc8 elements

3) Explain the meaning of

i) 0ransition series ii) (nner transition element

4) Explain the position of the folloing in periodic tale

i) dloc8 elements ii) anthanoids iii) ctinoids

$) Explain the oxidation state of 1st ro elements of transition

series

) Explain the oxidation states of lanthanoids and actinoids

+) Why do lanthanoids form coloured compounds ) Explainlt most of the transition metal compounds are

remar8aly coloured

5) Why chromium has electronic conguration 3d$ 4s1 and not 3d4

4s2

17) Why does copper sho anormal electronic conguration

11) Explainlt the trends in atomic and ionic si=es of lanthanoidsand also of 1st ro elements of transition series

12) What are actinoids

13) What are transuranic elements Write their name

14) Why transition elements sho tendency to form large numer

of complexes

1$) Explain the compounds of copper ((() are coloured ut thoseof =inc are colourless

1) o is potassium dichromate prepared from chrome ion

1+) Write the preparationlt properties and use of potassium

permanganate

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1) Explainlt hy -t(M) complexes are generally octahedral hile

-t(() complexes are sCuare planar

15) ierentiate eteen lanthanoids and actinoids

27) What are chemical tins Give examples

21) Explain hy Gd3H is colourless

COORDINATION COMPOUNDS

1) What is the dierence eteen doule salt and coordinationcompounds

2) Explainlt hy 6e4)2 D4)22D) is a salt ut F 4P6e)Q is a

complex compound

3) Write the formula of the folloing complexes

i) alcium hexa cyano ferrate (()

ii) iammine dichloro platinum

iii) is ethylene diammine) dichloro iridium ((() ion

iv) -entamine caronato chromium ((() D(E

v) 0risethylene diammine ) coalt((() sulphate

vi) iamine ethylene diammine nic8el (() acetate

4) Write the rules hich are applied hile riting the formulas of

coordination compounds

$) ene the terms

i) entral metal atomgtion

ii) igand

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iii) oordination compound

iv) oordination sphere

v) oordination numer

vi) oordination polyhedral

vii) omoleptic and heteroleptic complexes

viii) harge on the complexes

ix) oordination entity

) Write (- name of the folloing complexes

i) Pr2D)4 l2QD3

ii) P-ten)l4Q

iii) F 2Pi)4Q

iv) sP6el4Q

v) rl3-y)3

vi) F 3Po2D4)3Q

vii) Por2en)2Q

viii) P-tl4Q2

ix) Po2D))en)2Q2H

x) F 3Pl2D4)3Q

+) Explain the importance of principles of additive nomenclature

) (dentify the folloing ions y a simple test forming complex

compound

i) u2H ii) i2H iii) 6e3H iv) o2H

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5) Dn the asis of WernerBs theory explainlt hy coalt amine

complexlt ol343 hen treated ith gD3 solution

precipitates only one ion even though there are three ions

17) alculate the eective atomic numer E) of the centralmetal atom in the folloing compounds

i) F 3P6e)Q ii) rD)

11) Write the postulates of WernerBs theory

12) Explain the onding in ol333 and ol3$3

13) Explain stereoisomerism in metal complexes ith coordination

numer 4 and 14) Why the tetrahedral complexes do not exhiit geometrical

isomerism

1$) ra cis and trans geometrical isomers of

i) dichlororomo iodo palladium (() ion

ii) P-t(()3)2l2Q

iii) Po((()3)l3Q

iv) Po((()3)42D)lQ2H

1) ra all possile geometrical isomers of P-t(M)

3)2-y)2l2Q2H ion

1+) Write oxidation statelt coordination numer and electronic

conguration of the metal atom in the folloing complexes

i) rl3-y)3 ii) F 4Pampn)Q

1) lassify the folloing ligands into monodentatelt polydentate

and amidentate

i) 3 ii) iii) iv) v) D2 vi) ethylene diammine

vii) oxalate

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viii) triaminotriethylamine

15) ol3$32D is a pin8 solidlt the solution of this salt is also

pin8 and formed 3mol of gl ith silver nitrate solution Dn

heating pin8 solidlt it loses one ater molecule and forms purplesolid having same ratio of o3l as that of pin8 solid 0he

purple solid hen dissolved in ater and treated ith forms 1 mol

of gl ra the structure and name of the pin8 and purple

solids

27) ame the octahedral complex ions

i) Po2D4) en)2QH ii) transPr)4 3)2Q

21) ra the structures of the folloing complexes

i) Pol4Q2 ii) Pampn3)Q2H iii) P-tlQ iv) iD)4 v) Pi)4Q2

22) (n an octahedral crystal eldlt dra the gure to sho splitting

of dorital

23) What are ea8 eld and strong eld ligands What is spectro

chemical series

24) Pi)4Q2 is diamagnetic hile Pr3)Q3H is paramagnetltexplain

2$) Dn the asis of valence ond theory explain the nature of

onding in the folloing complexes

i) Po6Q3 ii) Po2D4)3Q3

2) lue coloured copper sulphate solution gave folloing

experimental results Explain the same

i) With aCueous potassium chloride it gave right green solution

ii) With aCueous potassium Juoride it gave a green precipitate

2+) ra the structures of optically active isomers of Poen)3Q3H

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2) ra the geometrical and optical isomers of

i) Pol2en)2QH ii) Polen)23)Q2H

25) What is lin8age isomerism Explain ith an example

37) What are hydrate isomers Explain ith examples

31) Explain the structure of

i) upraammonium sulphate ii) Po3)Q3H

32) What are the limitations of valence ond theory

33) Explain the magnetic properties of coordination compounds

34) Write the salient features of crystal eld theory What are itslimitations

3$) Explain the octahedral geometry of complexes using crystal

eld theory

3) Write a note on colours in coordination compounds

3+) Explain the factors aecting the staility of coordination

compound3) Write rief the applications of coordination compounds

HALOGEN DERIVATIVES O ALANES AND ARENES

1) What are al8yl halides o are they classied

2) Write (- names of the folloing compounds

i)

ii) 2Al

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iii)

iv)

v)

vi) secutyl chloride

vii) neopentyl romide

viii) tutyl iodide

ix) isopropyl romide

3) o is ethyl romide prepared from

i) Ethyl alcohol ii) ethane iii) ethane

4)Write the preparation of isopropyl chloride using the folloing

reagents

i) -l3 ii) -l$ iii) l2 iv) l v) Dl2

$) o is group replaced y folloing functional rroups

i) OD ii) O iii) O iv) O2

) Write a note on

i) andmeyerBs reaction ii) Wurt= reaction iii) 6in8elstein reaction

iv) 6ittig reaction v) 6riedel raft reaction

+) (dentify and in the folloing

8112019 Chemistry Question 12sci (1)

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) Give the structures of the folloing compounds

i) 3romo2methyl pentane ii) 2romo3ethyl hexane iii) 1

holo utane

iv) pichloroen=ene v) 1lt1lt10richloroethane

5) student has performed an experiment in the laoratory e

mixed ater ith hexane and found to layers separated econd

time he mixed chloroform ith ater and he again found to

layers in the test tue Explain hich ill e upper layer and

hich one ill e loer layer in oth the experiments

17) onvert 1hloroutane into the folloing compounds

i) utane1ol ii) 1(odoutane iii) 3222 iv)

11) 6or each pair of compoundslt state hich compound is etter

2 sustrate

i) 2romoutanelt isopropyl romide ii) 1(odo2lt2dimethyl

propane or isopropyl iodide

12) hoose the memer that ill react faster from the folloing

pairs y 1 mechanism

13) -redict the expected product of sustitution reaction

i) isoutyl chloride mH sodium ethoxide

ii) nutyl chloride H sodium

iii) 1hloro propane H aC potassium hydroxide

iv) aniline H aD2gt l

14) Write the products

i) $22A2 H r L

ii) $A2 H r

8112019 Chemistry Question 12sci (1)

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iii)

iv)

v)

1$) (dentify the chiral and achiral molecules

i)

ii)

iii)

1) iscuss 2 mechanism of methyl romide using aCueous

FD ra energy prole diagram1+) Write the mechanism of the reaction hen tutyl chloride is

treated ith aCueous FD ith energy prole diagram

1) ierentiate eteen 1 and 2 mechanism

15) Explain the nature of ond in

i) 322 ii)

27) What are uses of

i) 0 ii) (odoform iii) hloroform iv) aron tetrachloride

21) l8yl halides are polar and miscile ith aterlt explain

22) Which one of the folloing is more easily hydrolysed y

aCueous FD

$l$ and $2l

23) rrange the folloing groups in descending order 2lt D3lt

D3lt DD and l

24) ssign or conguration to each of the folloing

structures

8112019 Chemistry Question 12sci (1)

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i)

ii)

iii)

iv)

DDlt -ED E0E

1) What are alcohols o are they classied

2) What are monohydric alcohols o are they classied

4) Write the structures of folloing alcohols

i) 1Ethylcyclohexanol ii) ex3en2ol iii)yclohex2en1ol

iv) -entane1lt4diol

v) 2lt4imethylhexane1lt3lt$triol

$) Explain the folloing

i) -ropan1ol has higher oiling point than nutane

ii) ampethanol is more solule in ater than -ropan1ol

) Write the mechanism of hydration of ethylene to ethyl alcohol

+) -ropan1ol can not e prepared y acid catalyst hydration of

propenelt then ho is propene converted into propan1ol

)5) o is propanone converted into

i) -ropan2ol ii) 2ampethyl propan2ol

17) o ill you otain utan2ol from

8112019 Chemistry Question 12sci (1)

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i) -ropanal ii) utan2one iii) ut2ene

11) o is propan1ol prepared from

i) -ropanal ii) -ropanoic acid

12) o is cyclopentanol prepared from

i) yclopentanone ii) yclopentene

14) Write the mechanism of acid catalysed dehydration of ethanol

to give ethane

1$) Write the structure of aldehyde lt caroxylic acid and ester

that yield folloing alcohol

1+) o ill you prepare

i) 2ampethylutane1ol from an al8ene

ii) cyclohexylmethanol from a Grignard reagent

iii) 1phenylethanol from acetaldehyde

1) o are folloing conversions rought aout

i) en=yl chloride to en=yl alcohol

ii) en=yl alcohol to en=oic acid

iii) 1Ethylcyclohexanol from yclohexanone

15) What are phenols o are they classied

27)21) Give the structures and (- names of isomeric phenols

represented y the molecular formula 17D

22) o is phenol prepared from

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i) hloroen=ene ii) (sopropyl en=ene iii) en=ene sulphonic

acid iv) aniline

23 ) Explain the folloing

i) -henol is more acidic than phenol

ii) onitrophenol is more acidic than ocresol

iii) pnitrophenol is less volatile than onitrophenol

24) Explain the folloing reactions of phenol

i) FoleBs reaction ii) iemer0iemann reaction

2$) ame the reagents used to convert phenol intoi) picric acid ii) 2lt4lt0riromophenol iii) en=ene iv) ophenol

sulphonic acid

2) What is the action of folloing reagents on phenol i)

romine in 2 at lo temperature

ii) ilute nitric acid at room temperature iii) oncentrated

sulphuric acid at room temperature

2+) Give distinguish test eteen phenol and ethanol

2) What are ethers o are ethers classied

25) What is metamerism Give the structure and (- name of

metamers of 2ampethoxypropane

37) Write the mechanism for acidic dehydration of ethanol

31) o is diethyl ether prepared y continuous ethericationprocess Why is the process so called

32) o ill you prepared methoxyethane from

i) l8yl halide ii) ia=omethane

33) tate the important uses of i) -henol ii) diethyl ether

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34) Write the mechanism of action of hydrogen romide on tert

utyl methyl ether

3$) Explain the folloing reactions of anisole

i) romination ii) itration iii) 6riedelrafts al8ylation iv)6riedelrafts acylation

3) Explainlt i) 0he OD group attached to aromatic ring in

phenols and ii) 0he al8oxy group in al8yl aryl ethers are ortholt

para directing and activate the aromatic ring toars electrophilic

sustitution

3+) Write the chemical eCuations for Williamson synthesis of 2

Ethoxy2methypentane starting from ethanol and 2ampethylpentan2ol

3) n organic compound ith the formula 417D3 shos

properties of ether and alcohol hen treated ith an excess of

r yields only one compound 1lt2 diromomethane Write

structural formula of ether and that of alcohol

ALDEHYDES ETONES AND CABO$YLIC

ACID

1) Write the structure and give (- names of the folloing

compounds

i) chloropropionaldehyde

ii) Rhydroxyutyraldehyde

iii) isoutyraldehyde

iv) Rmethylvaleraldehyde

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v) isopropyl methyl 8etone

vi) diisopropyl 8etone

vii) mromoen=aldehyde

viii) dien=yl 8etone

ix) divinyl 8etone

x) allyl methyl 8etone

xi) ethyl phenyl 8etone

xii) nutyrophenone

2) Write the structure of folloing compounds

i) 4ampethyl3nitroen=ophenone ii) 2ampethyl4oxopentanal iii)

3Dxopentanoic acid iv) 4chloropropiophenone v) 3

ampethoxyutanal vi) 4ydroxycyclohaxane caraldehyde

3) o ill you prepare i) propiophenone from propanenitrile ii)

4chloroen=aldehyde from 4chlorotoluene iii)

yclohaxanecaraldehyde from cyclohexylmethanol iv) 4

methoxyacetophenone from anisole v) 4methylen=aldehydefrom toluene

4) rrange the folloing compounds in the increasing order of

their oiling points

i) dimethyl etherlt ethyl alcohollt propanelt acetaldehyde

ii) acetonelt npropyl alcohollt ethyl methyl alcohol and nutane

$) What is the action of hydrogen cyanide in asic medium on i)utanone ii) 2lt4dichloroen=aldehyde

) What is the action of folloing compounds on cyclohexanone in

presence of dry hydrogen chloride

i) ethyl alcohol ii) ethylene glycol

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+) Write the structure of product in the folloing reactions

i) 322D3

ii) $2D3

) Write the structures of caronyl compounds and ammonia

derivatives that comine to give folloing imines

i)

ii)

iii)

iv)v)

vi)

5) Write the chemical eCuations for aldol condensation or

anni==aro reaction that folloing compounds undergo

i) -ropanal ii) 2ampethylpropanal iii) -entanal iv) 3

ampethylutanal v) cetophenonevi) pampethoxyen=aldehyde vii) 2ampethylcyclohaxanone viii)

chloral ix) yclopentanone

x) -henyl acetaldehyde xi) 1-henylpropan1one

17) Write the structure of the maKor product of the folloing

crossed aldol condensation

i) formaldehyde and propionaldehydeii) en=aldehyde ith acetone

11) (dentify the compounds SBlt SB and SB in the folloing

reactions and rerite the complete eCuations

i)

8112019 Chemistry Question 12sci (1)

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ii)

12)o ill you eect folloing tostep conversions

i) -ropanal into utanone ii) utanone into ut2ene iii)

en=ene into mromoacetophenone iv) ex3yne into exan

3one v) en=oic acid into mnitroen=ylalcohol

13) o ill you convert en=aldehyde into folloing compounds

ampore than one steps may e reCuired

i) en=ophenone ii) en=oic acid iii) 3-henylpropan1ol iv)hydroxyphenylacetic acid

14) Give a chemical test to distinguish eteen folloing pairs of

compounds

i) Ethanal and propanone ii) -rpopanal and propanone iii)

-entane2one and pentane3one

1$) Write the structure and (- names of folloing caroxylicacids

i) ltRdimethylutanoic acid ii) Rphenylutyric acid iii) 1038389

chloromethylvaleric acid

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+) erive the expression for or8 hen a gas expands against

constant external pressure

) lassify the folloing reactions according to or8 done y the

systemlt on the system and no or8 done if pressure is constanta) 2g) H l2g) 2lg)

) 3D2g) 2D3g)

c) 2D2g) D2g)H 2D3g)

d) ampgD3s) H ampgDs) D2g)

e) 4D3s) H 2Dg) 22Dg)

5) What is the dierence dierence eteen and What is

the sign of for exothermic and endothermic reactions nder

hat circumstances

17) What are the sign convention for C and W

11) Explain the concept of maximum or8

12) free expansion of a gas results into no or8 Explain

13) erive the expression for maximum or8

14) ene enthalpy t constant pressure sho that A

1$) (t is di9cult to calculate lt hoever can e easily

determined Why Explain giving examples

1) tate rst la of thermodynamics Iustify its mathematical

eCuation

1+) Dtain the relationship eteen and for a chemical

reaction

1) What is the expression for or8 done in a chemical reaction

Explain the meaning of each term

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a) dissolution of sugar in hot coee

) separation of r and Fr from their mixture

c) spreading of fragrance hen a ottle of perfume is opened

d) Jo of heat from cold oKect to hot oKect

e) heat transfer from ice to room at 2$

37) ene entropy Give its units What does entropy measures

31)Explain ho entropy changes in the folloing processes

a) free=ing of liCuid

) sulimation of solid

c) dissolving of ater in sugar

d) condensation of vapour

32) Which memer of the folloing pairs have larger entropy

Why

a) D2s) or D2g)

) 3Dl) or 2$D2$l)

c) Dg) or 2D4g)

d) eg) or Frg)

e) as) or als)

33) Why is it more convenience to predict spontaneity of reaction

in terms of Gsys rather than total34) ene Gis energy and change in Gis energy What are

the units of Gis energy

3$) tate second la of thermodynamics in terms of entropy and

express it mathematically

8112019 Chemistry Question 12sci (1)

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3) tate third la of thermodynamics What is its usefulness

3+) Why is it impossile for any sustance to have an asolute

entropy =ero at temperature greater than 7F

3) (t is impossile for a reaction to e spontaneous yetexothermic Explain ith example

35) (s it possile for a reaction to e nonspontaneous yet

exothermic Explain ith example

47) -redict the sign of in the folloing process Give reasons

for your anser

a) 2D4g) 2D2g)) 6e2D3s) H 32g) 26es) H 32Dg)

c) 2g) H 32g) 23g)

d) ampgD3s) 23g)

e) D2g) D2s)

f) l2g) 2lg)

41) What can e said aout the spontaneity of reactions hen

a) and are oth positive

) and oth are negative

c) is positive and is negative

d) is negative and is positive

42) (dentify hich memer of the folloing pairs has largerentropy Why

a) eg) in a volume of 1 or eg) in a volume of $ oth at 2$

) D2g) at 1atm or D2g) at 17atm oth at the same temperature

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c) 2$Dl) or 2$Dg)

d) $ moles of e or 2 moles of e

43) What are the signs of for the folloing reaction

Explain ith reasons

2g) 2g)

44) erive the relationship eteen G and total

4$) Iustify the inclusion of Crev and 0 in the denition of entropylt

A Crevgt 0

4) 0he increase in entropy of a system alone does not guarantee

the spontaneity of a process Explain

4+) 0he criterion of spontaneity in terms of Gis energy is the

same as that laid don y second la of thermodynamic o

PROBLEMS

1) 0hree moles of an ideal gas are expanded isothermally from a

volume of 377cm3 to 2$ at 377F against a pressure of 15atm

alculate the or8 done in atm and Koules2) Dne mole of an ideal gas is compressed from $77cm3 against a

constant pressure of 121 17$-a 0he or8 involved in the

process is 3$7I alculate the nal volume

3) alculate the maximum or8 hen 24g of oxygen are

expanded isothermally and reversily from a pressure of 1

17$-a to 1778-a at 25F

4) 0hree moles of an ideal gas are compressed isothermally andreversily to a volume of 2 0he or8 done is 2538I at 22

alculate the initial volume of a gas

8112019 Chemistry Question 12sci (1)

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$) 2 172 8g of nitrogen is expanded isothermally and

reversily at 377F from 1$1$ 17$ m 2 hen the or8 done is

found to e 1+338 I 6ind the nal pressure

) sample of a gas asors 47778I of heata) if volume remains constantlt hat is

) uppose that in addition to asorption of heat y the samplelt

the surrounding does 27778I of or8 on the samplelt hat is

c) uppose that as the original sample asors heatlt it expands

against atmospheric pressure and does 778 I of or8 on its

surroundings What is

+) alculate the or8 done in each of the folloing reactions

tate hether or8 is done on or y the system

a) 0he oxidation of one mole of D2 at $7

2D2g) H D2g) 2D3g)

) decomposition of 2 moles of 4D3 at 177

4D3s) 2Dg) H 22Dg)

) 0he enthalpy change for the reaction

24g) H 2g) 2g) is 27I hen 177m of ethylene and

177m of 2 react at 1atm pressure alculate the pressure

volume or8 and

5) alculate standard enthalpy of the reaction

6e2D3s) H 3Dg) 26es) H 3D2g) from the folloing data

f 76e2D3)A2428Imol1ltf 7D)A117$8Imol1lt

f 7D2)A353$8Imol1

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8112019 Chemistry Question 12sci (1)

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Electro chemitry

Theory

1ene the terms resistivitylt conductivity and molar

conductivity Give its ( units

2Explain the terms conductivity and molar conductivity o are

they interrelated

3Why does conductivity of s solution decrease on dilution of a

solution

4o does molar conductivity of an electrolyte vary ith

concentration

$o does the variation in molar conductivity of an electrolyte

ith concentration diers for strong and ea8 electrolytes

Explain the dierent ehaviour of strong and ea8 electrolytes

toards the variation of conductivity ith concentration

+tate and explain Fohlrausch la of independent migration of

ions o it is useful to determine the molar conductivity of ea8

electrolytes at =ero concentration

o is the molar conductivity of strong electrolytes at =ero

concentration determined y graphical method Why is this

method not useful for ea8 electrolytes

5What is cell constant What is its unit o is it determined

17ene anode and cathode

11 Why is cathode in electrolytic cell considered to e negative

and anode positive

12 -redict the half cell reactions that occur hen fused Fl is

electroly=ed in a cell ith inert electrodes What is the overall cell

reaction

8112019 Chemistry Question 12sci (1)

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13 tate 6aradayBs las of electrolysis

14o ill you calculate the numer of moles of electrons

actually passed and mass of the sustance produced during

electrolysis of a salt solution using reaction stoichiometry1$o many electrons ill have a total charge of 1 coulom

1 o many faradayBs ould e reCuired to plate out 177 mole

of free metal from the folloing cations

a) ampg2H

) r3H

c) -2H

d) uH

1+ ene coulom and faraday

1 escrie the electrolysis of molten al using inert

electrodes

15 What is the dierence eteen electrolytic cell and voltaic

cell

27 Why is anode in galvanic cell considered to e negative and

cathode positive electrode

21 8etch the cell for the electrolysis of molten al (ndicate

cathodelt anode and their signs ho the Jo of electrons and

ions

22 What is salt ridge What are its functions in galvanic cell

23 What are the conventions used to rite cell diagramcell

formula)

24 escrie the construction of aniel cell Write electrode half

reactions and net cell reaction in aniel cell

8112019 Chemistry Question 12sci (1)

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2$ escrie the folloing types of electrodes giving one

examplelt ith reference to formulationlt electrode reaction and

ernst eCuation for electrode potential

a) metalsparingly salt electrode) gas electrode

2 What is redox electrode Give one example ith formulationlt

electrode reaction and ernst eCuation for electrode potential

2+ ene the terms oxidation potentiallt reduction potential and

cell potential

2 What conditions are reCuired for a cell potential to e calledstandard cell potential

25 6ormulate a cell for each of the folloing electrode reactions

a) n2H aC) H 2gl s) L n4H aC) H 2gs) H2l aC)

) ampg s) H r2l) L ampg2H aC) H 2r aC)

37 6ormulate a cell from the folloing electrode reactions

a) l2g) H 2e L 2l aC)

) 2( aC) L (2s) H 2e

31 What are standard electrode potential and standard emf of

the galvanic cell

32 Write ernst eCuation and explain the terms involved in it

What part of the eCuation represents the correction factor for

nonstandard state conditions

33 Write ernst eCuation for the folloing reactions

a) rs) H 36e3H aC) L r3H aC) H 36e2H aC)

) l3H aC) H 3e L l s)

8112019 Chemistry Question 12sci (1)

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34 onsider the folloing E7 values and half reactions

(2s) H 2e L 2( aC) E7A7$3$M

u2H aC) H 2e L u s) E7A733+M

d2H aC) H 2e L ds) E7A77473

a) Which of the metals or nonmetals or ions is the strongest

oxidi=ing agent and hich is the strongest reducing agent

) 0he half reactions can e used to construct three galvanic

cells Which ill have the highest cell potential

3$ -redict hether

a) gH can oxidi=e - to -2H under standard state condition

) E7gA7+55M and E7

-A712M

3 -redict hether the folloing reactions occur under standard

state conditions

a) Dxidation of gs) y l2g) E7gA7Mlt E7

l2A13M

) eduction of 6e

3H

to 6e

2H

y us) E

7

6e3Hlt 6e2H A 7++MltE7uA14M

3+ 8etch and descrie the operation of

a) dry cell

) 2D2 fuel cell

3 What are the advantages and disadvantages of fuel cells

35 8etch lead storage cell

47 Write electrode reaction and overall cell reaction during the

operation of lead storage cell

41 Write electrode reaction and overall cell reaction hen lead

accumulator ehaves as an electrolytic cell

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42 o can ernst eCuation e used to sho that electrode

potential is eCual to the standard electrode potential y putting

approximate values in ernst eCuation se u2HNd half cell for

illustration

43 o are G7lt E7cell and eCuilirium constant related for a

particular reaction

44 Why is eCuilirium constant related to E7cell and not Ecell

4$ G7 for a redox reaction depends on the numer of electrons

transferred Explain

4 o does the eCuiliriumlt G7An6E7 explain that an

electrical potential is an intensive property

4+ Write shorthand notation for the cell for each of the folloing

reactions

a) u2H aC) H 2gs) H 2r L u s) H 2gr s)

) n2H aC) is oxidi=ed y r2 l)

4 rrange the folloing reducing agents in order of increasing

strength under standard state conditions 0he standard potentialsfor the reduction half reactions are given

gH aC) 7M)lt l3H aC) 1M)lt 62g) 2+M)lt l2g) 13M)lt

(2s) 7$4M)lt d2H aC) 74M)

45 rrange the folloing oxidi=ing agents in order of increasing

strength under standard state conditions 0he standard potentials

for the reduction half reactions are given

ls) 1M)lt l aC) 13M)lt us) 734M)lt 6es)744M)lt r

aC) 175M)lt is) 72M)

$7 Which species in each of the folloing pairs is etter oxidi=ing

agent under standard state conditions standard potential are

given) Give reasons for your anser

8112019 Chemistry Question 12sci (1)

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a) r2l) 175M) or u3H 14M)

) H aC) or gH aC) 7M)

c) -2H aC) 713M) or o2H 72M)

d) l2 g) 13M) or r3H 7+4M)

$1 Which species in each of the folloing pairs is etter reducing

agent under standard conditions E7 values are given Give

reasons for your anser

a) Fs) 2353M) or ampgs) 23M)

) o2H aC) 11M) or (n s) 714M)

c) e3H aC) 11M) or 0i2H73+M)

d) gl) 7M) or is) 723M)

PROBLEMS

1 conductivity cell lled ith 771amp Fl given at 2$o the

resistance of 74ohms 0he conductivity of Fl at 2$

o

is 7777

CHEMISTRY

d f O DF EEampE0

1) What are dloc8 elements

8112019 Chemistry Question 12sci (1)

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2) What are floc8 elements

3) Explain the meaning of

i) 0ransition series ii) (nner transition element

4) Explain the position of the folloing in periodic tale

i) dloc8 elements ii) anthanoids iii) ctinoids

$) Explain the oxidation state of 1st ro elements of transition

series

) Explain the oxidation states of lanthanoids and actinoids

+) Why do lanthanoids form coloured compounds ) Explainlt most of the transition metal compounds are

remar8aly coloured

5) Why chromium has electronic conguration 3d$ 4s1 and not 3d4

4s2

17) Why does copper sho anormal electronic conguration

11) Explainlt the trends in atomic and ionic si=es of lanthanoidsand also of 1st ro elements of transition series

12) What are actinoids

13) What are transuranic elements Write their name

14) Why transition elements sho tendency to form large numer

of complexes

1$) Explain the compounds of copper ((() are coloured ut thoseof =inc are colourless

1) o is potassium dichromate prepared from chrome ion

1+) Write the preparationlt properties and use of potassium

permanganate

8112019 Chemistry Question 12sci (1)

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1) Explainlt hy -t(M) complexes are generally octahedral hile

-t(() complexes are sCuare planar

15) ierentiate eteen lanthanoids and actinoids

27) What are chemical tins Give examples

21) Explain hy Gd3H is colourless

COORDINATION COMPOUNDS

1) What is the dierence eteen doule salt and coordinationcompounds

2) Explainlt hy 6e4)2 D4)22D) is a salt ut F 4P6e)Q is a

complex compound

3) Write the formula of the folloing complexes

i) alcium hexa cyano ferrate (()

ii) iammine dichloro platinum

iii) is ethylene diammine) dichloro iridium ((() ion

iv) -entamine caronato chromium ((() D(E

v) 0risethylene diammine ) coalt((() sulphate

vi) iamine ethylene diammine nic8el (() acetate

4) Write the rules hich are applied hile riting the formulas of

coordination compounds

$) ene the terms

i) entral metal atomgtion

ii) igand

8112019 Chemistry Question 12sci (1)

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iii) oordination compound

iv) oordination sphere

v) oordination numer

vi) oordination polyhedral

vii) omoleptic and heteroleptic complexes

viii) harge on the complexes

ix) oordination entity

) Write (- name of the folloing complexes

i) Pr2D)4 l2QD3

ii) P-ten)l4Q

iii) F 2Pi)4Q

iv) sP6el4Q

v) rl3-y)3

vi) F 3Po2D4)3Q

vii) Por2en)2Q

viii) P-tl4Q2

ix) Po2D))en)2Q2H

x) F 3Pl2D4)3Q

+) Explain the importance of principles of additive nomenclature

) (dentify the folloing ions y a simple test forming complex

compound

i) u2H ii) i2H iii) 6e3H iv) o2H

8112019 Chemistry Question 12sci (1)

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5) Dn the asis of WernerBs theory explainlt hy coalt amine

complexlt ol343 hen treated ith gD3 solution

precipitates only one ion even though there are three ions

17) alculate the eective atomic numer E) of the centralmetal atom in the folloing compounds

i) F 3P6e)Q ii) rD)

11) Write the postulates of WernerBs theory

12) Explain the onding in ol333 and ol3$3

13) Explain stereoisomerism in metal complexes ith coordination

numer 4 and 14) Why the tetrahedral complexes do not exhiit geometrical

isomerism

1$) ra cis and trans geometrical isomers of

i) dichlororomo iodo palladium (() ion

ii) P-t(()3)2l2Q

iii) Po((()3)l3Q

iv) Po((()3)42D)lQ2H

1) ra all possile geometrical isomers of P-t(M)

3)2-y)2l2Q2H ion

1+) Write oxidation statelt coordination numer and electronic

conguration of the metal atom in the folloing complexes

i) rl3-y)3 ii) F 4Pampn)Q

1) lassify the folloing ligands into monodentatelt polydentate

and amidentate

i) 3 ii) iii) iv) v) D2 vi) ethylene diammine

vii) oxalate

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viii) triaminotriethylamine

15) ol3$32D is a pin8 solidlt the solution of this salt is also

pin8 and formed 3mol of gl ith silver nitrate solution Dn

heating pin8 solidlt it loses one ater molecule and forms purplesolid having same ratio of o3l as that of pin8 solid 0he

purple solid hen dissolved in ater and treated ith forms 1 mol

of gl ra the structure and name of the pin8 and purple

solids

27) ame the octahedral complex ions

i) Po2D4) en)2QH ii) transPr)4 3)2Q

21) ra the structures of the folloing complexes

i) Pol4Q2 ii) Pampn3)Q2H iii) P-tlQ iv) iD)4 v) Pi)4Q2

22) (n an octahedral crystal eldlt dra the gure to sho splitting

of dorital

23) What are ea8 eld and strong eld ligands What is spectro

chemical series

24) Pi)4Q2 is diamagnetic hile Pr3)Q3H is paramagnetltexplain

2$) Dn the asis of valence ond theory explain the nature of

onding in the folloing complexes

i) Po6Q3 ii) Po2D4)3Q3

2) lue coloured copper sulphate solution gave folloing

experimental results Explain the same

i) With aCueous potassium chloride it gave right green solution

ii) With aCueous potassium Juoride it gave a green precipitate

2+) ra the structures of optically active isomers of Poen)3Q3H

8112019 Chemistry Question 12sci (1)

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2) ra the geometrical and optical isomers of

i) Pol2en)2QH ii) Polen)23)Q2H

25) What is lin8age isomerism Explain ith an example

37) What are hydrate isomers Explain ith examples

31) Explain the structure of

i) upraammonium sulphate ii) Po3)Q3H

32) What are the limitations of valence ond theory

33) Explain the magnetic properties of coordination compounds

34) Write the salient features of crystal eld theory What are itslimitations

3$) Explain the octahedral geometry of complexes using crystal

eld theory

3) Write a note on colours in coordination compounds

3+) Explain the factors aecting the staility of coordination

compound3) Write rief the applications of coordination compounds

HALOGEN DERIVATIVES O ALANES AND ARENES

1) What are al8yl halides o are they classied

2) Write (- names of the folloing compounds

i)

ii) 2Al

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iii)

iv)

v)

vi) secutyl chloride

vii) neopentyl romide

viii) tutyl iodide

ix) isopropyl romide

3) o is ethyl romide prepared from

i) Ethyl alcohol ii) ethane iii) ethane

4)Write the preparation of isopropyl chloride using the folloing

reagents

i) -l3 ii) -l$ iii) l2 iv) l v) Dl2

$) o is group replaced y folloing functional rroups

i) OD ii) O iii) O iv) O2

) Write a note on

i) andmeyerBs reaction ii) Wurt= reaction iii) 6in8elstein reaction

iv) 6ittig reaction v) 6riedel raft reaction

+) (dentify and in the folloing

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) Give the structures of the folloing compounds

i) 3romo2methyl pentane ii) 2romo3ethyl hexane iii) 1

holo utane

iv) pichloroen=ene v) 1lt1lt10richloroethane

5) student has performed an experiment in the laoratory e

mixed ater ith hexane and found to layers separated econd

time he mixed chloroform ith ater and he again found to

layers in the test tue Explain hich ill e upper layer and

hich one ill e loer layer in oth the experiments

17) onvert 1hloroutane into the folloing compounds

i) utane1ol ii) 1(odoutane iii) 3222 iv)

11) 6or each pair of compoundslt state hich compound is etter

2 sustrate

i) 2romoutanelt isopropyl romide ii) 1(odo2lt2dimethyl

propane or isopropyl iodide

12) hoose the memer that ill react faster from the folloing

pairs y 1 mechanism

13) -redict the expected product of sustitution reaction

i) isoutyl chloride mH sodium ethoxide

ii) nutyl chloride H sodium

iii) 1hloro propane H aC potassium hydroxide

iv) aniline H aD2gt l

14) Write the products

i) $22A2 H r L

ii) $A2 H r

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iii)

iv)

v)

1$) (dentify the chiral and achiral molecules

i)

ii)

iii)

1) iscuss 2 mechanism of methyl romide using aCueous

FD ra energy prole diagram1+) Write the mechanism of the reaction hen tutyl chloride is

treated ith aCueous FD ith energy prole diagram

1) ierentiate eteen 1 and 2 mechanism

15) Explain the nature of ond in

i) 322 ii)

27) What are uses of

i) 0 ii) (odoform iii) hloroform iv) aron tetrachloride

21) l8yl halides are polar and miscile ith aterlt explain

22) Which one of the folloing is more easily hydrolysed y

aCueous FD

$l$ and $2l

23) rrange the folloing groups in descending order 2lt D3lt

D3lt DD and l

24) ssign or conguration to each of the folloing

structures

8112019 Chemistry Question 12sci (1)

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i)

ii)

iii)

iv)

DDlt -ED E0E

1) What are alcohols o are they classied

2) What are monohydric alcohols o are they classied

4) Write the structures of folloing alcohols

i) 1Ethylcyclohexanol ii) ex3en2ol iii)yclohex2en1ol

iv) -entane1lt4diol

v) 2lt4imethylhexane1lt3lt$triol

$) Explain the folloing

i) -ropan1ol has higher oiling point than nutane

ii) ampethanol is more solule in ater than -ropan1ol

) Write the mechanism of hydration of ethylene to ethyl alcohol

+) -ropan1ol can not e prepared y acid catalyst hydration of

propenelt then ho is propene converted into propan1ol

)5) o is propanone converted into

i) -ropan2ol ii) 2ampethyl propan2ol

17) o ill you otain utan2ol from

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i) -ropanal ii) utan2one iii) ut2ene

11) o is propan1ol prepared from

i) -ropanal ii) -ropanoic acid

12) o is cyclopentanol prepared from

i) yclopentanone ii) yclopentene

14) Write the mechanism of acid catalysed dehydration of ethanol

to give ethane

1$) Write the structure of aldehyde lt caroxylic acid and ester

that yield folloing alcohol

1+) o ill you prepare

i) 2ampethylutane1ol from an al8ene

ii) cyclohexylmethanol from a Grignard reagent

iii) 1phenylethanol from acetaldehyde

1) o are folloing conversions rought aout

i) en=yl chloride to en=yl alcohol

ii) en=yl alcohol to en=oic acid

iii) 1Ethylcyclohexanol from yclohexanone

15) What are phenols o are they classied

27)21) Give the structures and (- names of isomeric phenols

represented y the molecular formula 17D

22) o is phenol prepared from

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i) hloroen=ene ii) (sopropyl en=ene iii) en=ene sulphonic

acid iv) aniline

23 ) Explain the folloing

i) -henol is more acidic than phenol

ii) onitrophenol is more acidic than ocresol

iii) pnitrophenol is less volatile than onitrophenol

24) Explain the folloing reactions of phenol

i) FoleBs reaction ii) iemer0iemann reaction

2$) ame the reagents used to convert phenol intoi) picric acid ii) 2lt4lt0riromophenol iii) en=ene iv) ophenol

sulphonic acid

2) What is the action of folloing reagents on phenol i)

romine in 2 at lo temperature

ii) ilute nitric acid at room temperature iii) oncentrated

sulphuric acid at room temperature

2+) Give distinguish test eteen phenol and ethanol

2) What are ethers o are ethers classied

25) What is metamerism Give the structure and (- name of

metamers of 2ampethoxypropane

37) Write the mechanism for acidic dehydration of ethanol

31) o is diethyl ether prepared y continuous ethericationprocess Why is the process so called

32) o ill you prepared methoxyethane from

i) l8yl halide ii) ia=omethane

33) tate the important uses of i) -henol ii) diethyl ether

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34) Write the mechanism of action of hydrogen romide on tert

utyl methyl ether

3$) Explain the folloing reactions of anisole

i) romination ii) itration iii) 6riedelrafts al8ylation iv)6riedelrafts acylation

3) Explainlt i) 0he OD group attached to aromatic ring in

phenols and ii) 0he al8oxy group in al8yl aryl ethers are ortholt

para directing and activate the aromatic ring toars electrophilic

sustitution

3+) Write the chemical eCuations for Williamson synthesis of 2

Ethoxy2methypentane starting from ethanol and 2ampethylpentan2ol

3) n organic compound ith the formula 417D3 shos

properties of ether and alcohol hen treated ith an excess of

r yields only one compound 1lt2 diromomethane Write

structural formula of ether and that of alcohol

ALDEHYDES ETONES AND CABO$YLIC

ACID

1) Write the structure and give (- names of the folloing

compounds

i) chloropropionaldehyde

ii) Rhydroxyutyraldehyde

iii) isoutyraldehyde

iv) Rmethylvaleraldehyde

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v) isopropyl methyl 8etone

vi) diisopropyl 8etone

vii) mromoen=aldehyde

viii) dien=yl 8etone

ix) divinyl 8etone

x) allyl methyl 8etone

xi) ethyl phenyl 8etone

xii) nutyrophenone

2) Write the structure of folloing compounds

i) 4ampethyl3nitroen=ophenone ii) 2ampethyl4oxopentanal iii)

3Dxopentanoic acid iv) 4chloropropiophenone v) 3

ampethoxyutanal vi) 4ydroxycyclohaxane caraldehyde

3) o ill you prepare i) propiophenone from propanenitrile ii)

4chloroen=aldehyde from 4chlorotoluene iii)

yclohaxanecaraldehyde from cyclohexylmethanol iv) 4

methoxyacetophenone from anisole v) 4methylen=aldehydefrom toluene

4) rrange the folloing compounds in the increasing order of

their oiling points

i) dimethyl etherlt ethyl alcohollt propanelt acetaldehyde

ii) acetonelt npropyl alcohollt ethyl methyl alcohol and nutane

$) What is the action of hydrogen cyanide in asic medium on i)utanone ii) 2lt4dichloroen=aldehyde

) What is the action of folloing compounds on cyclohexanone in

presence of dry hydrogen chloride

i) ethyl alcohol ii) ethylene glycol

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+) Write the structure of product in the folloing reactions

i) 322D3

ii) $2D3

) Write the structures of caronyl compounds and ammonia

derivatives that comine to give folloing imines

i)

ii)

iii)

iv)v)

vi)

5) Write the chemical eCuations for aldol condensation or

anni==aro reaction that folloing compounds undergo

i) -ropanal ii) 2ampethylpropanal iii) -entanal iv) 3

ampethylutanal v) cetophenonevi) pampethoxyen=aldehyde vii) 2ampethylcyclohaxanone viii)

chloral ix) yclopentanone

x) -henyl acetaldehyde xi) 1-henylpropan1one

17) Write the structure of the maKor product of the folloing

crossed aldol condensation

i) formaldehyde and propionaldehydeii) en=aldehyde ith acetone

11) (dentify the compounds SBlt SB and SB in the folloing

reactions and rerite the complete eCuations

i)

8112019 Chemistry Question 12sci (1)

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ii)

12)o ill you eect folloing tostep conversions

i) -ropanal into utanone ii) utanone into ut2ene iii)

en=ene into mromoacetophenone iv) ex3yne into exan

3one v) en=oic acid into mnitroen=ylalcohol

13) o ill you convert en=aldehyde into folloing compounds

ampore than one steps may e reCuired

i) en=ophenone ii) en=oic acid iii) 3-henylpropan1ol iv)hydroxyphenylacetic acid

14) Give a chemical test to distinguish eteen folloing pairs of

compounds

i) Ethanal and propanone ii) -rpopanal and propanone iii)

-entane2one and pentane3one

1$) Write the structure and (- names of folloing caroxylicacids

i) ltRdimethylutanoic acid ii) Rphenylutyric acid iii) 1038389

chloromethylvaleric acid

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a) dissolution of sugar in hot coee

) separation of r and Fr from their mixture

c) spreading of fragrance hen a ottle of perfume is opened

d) Jo of heat from cold oKect to hot oKect

e) heat transfer from ice to room at 2$

37) ene entropy Give its units What does entropy measures

31)Explain ho entropy changes in the folloing processes

a) free=ing of liCuid

) sulimation of solid

c) dissolving of ater in sugar

d) condensation of vapour

32) Which memer of the folloing pairs have larger entropy

Why

a) D2s) or D2g)

) 3Dl) or 2$D2$l)

c) Dg) or 2D4g)

d) eg) or Frg)

e) as) or als)

33) Why is it more convenience to predict spontaneity of reaction

in terms of Gsys rather than total34) ene Gis energy and change in Gis energy What are

the units of Gis energy

3$) tate second la of thermodynamics in terms of entropy and

express it mathematically

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3) tate third la of thermodynamics What is its usefulness

3+) Why is it impossile for any sustance to have an asolute

entropy =ero at temperature greater than 7F

3) (t is impossile for a reaction to e spontaneous yetexothermic Explain ith example

35) (s it possile for a reaction to e nonspontaneous yet

exothermic Explain ith example

47) -redict the sign of in the folloing process Give reasons

for your anser

a) 2D4g) 2D2g)) 6e2D3s) H 32g) 26es) H 32Dg)

c) 2g) H 32g) 23g)

d) ampgD3s) 23g)

e) D2g) D2s)

f) l2g) 2lg)

41) What can e said aout the spontaneity of reactions hen

a) and are oth positive

) and oth are negative

c) is positive and is negative

d) is negative and is positive

42) (dentify hich memer of the folloing pairs has largerentropy Why

a) eg) in a volume of 1 or eg) in a volume of $ oth at 2$

) D2g) at 1atm or D2g) at 17atm oth at the same temperature

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c) 2$Dl) or 2$Dg)

d) $ moles of e or 2 moles of e

43) What are the signs of for the folloing reaction

Explain ith reasons

2g) 2g)

44) erive the relationship eteen G and total

4$) Iustify the inclusion of Crev and 0 in the denition of entropylt

A Crevgt 0

4) 0he increase in entropy of a system alone does not guarantee

the spontaneity of a process Explain

4+) 0he criterion of spontaneity in terms of Gis energy is the

same as that laid don y second la of thermodynamic o

PROBLEMS

1) 0hree moles of an ideal gas are expanded isothermally from a

volume of 377cm3 to 2$ at 377F against a pressure of 15atm

alculate the or8 done in atm and Koules2) Dne mole of an ideal gas is compressed from $77cm3 against a

constant pressure of 121 17$-a 0he or8 involved in the

process is 3$7I alculate the nal volume

3) alculate the maximum or8 hen 24g of oxygen are

expanded isothermally and reversily from a pressure of 1

17$-a to 1778-a at 25F

4) 0hree moles of an ideal gas are compressed isothermally andreversily to a volume of 2 0he or8 done is 2538I at 22

alculate the initial volume of a gas

8112019 Chemistry Question 12sci (1)

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$) 2 172 8g of nitrogen is expanded isothermally and

reversily at 377F from 1$1$ 17$ m 2 hen the or8 done is

found to e 1+338 I 6ind the nal pressure

) sample of a gas asors 47778I of heata) if volume remains constantlt hat is

) uppose that in addition to asorption of heat y the samplelt

the surrounding does 27778I of or8 on the samplelt hat is

c) uppose that as the original sample asors heatlt it expands

against atmospheric pressure and does 778 I of or8 on its

surroundings What is

+) alculate the or8 done in each of the folloing reactions

tate hether or8 is done on or y the system

a) 0he oxidation of one mole of D2 at $7

2D2g) H D2g) 2D3g)

) decomposition of 2 moles of 4D3 at 177

4D3s) 2Dg) H 22Dg)

) 0he enthalpy change for the reaction

24g) H 2g) 2g) is 27I hen 177m of ethylene and

177m of 2 react at 1atm pressure alculate the pressure

volume or8 and

5) alculate standard enthalpy of the reaction

6e2D3s) H 3Dg) 26es) H 3D2g) from the folloing data

f 76e2D3)A2428Imol1ltf 7D)A117$8Imol1lt

f 7D2)A353$8Imol1

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8112019 Chemistry Question 12sci (1)

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Electro chemitry

Theory

1ene the terms resistivitylt conductivity and molar

conductivity Give its ( units

2Explain the terms conductivity and molar conductivity o are

they interrelated

3Why does conductivity of s solution decrease on dilution of a

solution

4o does molar conductivity of an electrolyte vary ith

concentration

$o does the variation in molar conductivity of an electrolyte

ith concentration diers for strong and ea8 electrolytes

Explain the dierent ehaviour of strong and ea8 electrolytes

toards the variation of conductivity ith concentration

+tate and explain Fohlrausch la of independent migration of

ions o it is useful to determine the molar conductivity of ea8

electrolytes at =ero concentration

o is the molar conductivity of strong electrolytes at =ero

concentration determined y graphical method Why is this

method not useful for ea8 electrolytes

5What is cell constant What is its unit o is it determined

17ene anode and cathode

11 Why is cathode in electrolytic cell considered to e negative

and anode positive

12 -redict the half cell reactions that occur hen fused Fl is

electroly=ed in a cell ith inert electrodes What is the overall cell

reaction

8112019 Chemistry Question 12sci (1)

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13 tate 6aradayBs las of electrolysis

14o ill you calculate the numer of moles of electrons

actually passed and mass of the sustance produced during

electrolysis of a salt solution using reaction stoichiometry1$o many electrons ill have a total charge of 1 coulom

1 o many faradayBs ould e reCuired to plate out 177 mole

of free metal from the folloing cations

a) ampg2H

) r3H

c) -2H

d) uH

1+ ene coulom and faraday

1 escrie the electrolysis of molten al using inert

electrodes

15 What is the dierence eteen electrolytic cell and voltaic

cell

27 Why is anode in galvanic cell considered to e negative and

cathode positive electrode

21 8etch the cell for the electrolysis of molten al (ndicate

cathodelt anode and their signs ho the Jo of electrons and

ions

22 What is salt ridge What are its functions in galvanic cell

23 What are the conventions used to rite cell diagramcell

formula)

24 escrie the construction of aniel cell Write electrode half

reactions and net cell reaction in aniel cell

8112019 Chemistry Question 12sci (1)

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2$ escrie the folloing types of electrodes giving one

examplelt ith reference to formulationlt electrode reaction and

ernst eCuation for electrode potential

a) metalsparingly salt electrode) gas electrode

2 What is redox electrode Give one example ith formulationlt

electrode reaction and ernst eCuation for electrode potential

2+ ene the terms oxidation potentiallt reduction potential and

cell potential

2 What conditions are reCuired for a cell potential to e calledstandard cell potential

25 6ormulate a cell for each of the folloing electrode reactions

a) n2H aC) H 2gl s) L n4H aC) H 2gs) H2l aC)

) ampg s) H r2l) L ampg2H aC) H 2r aC)

37 6ormulate a cell from the folloing electrode reactions

a) l2g) H 2e L 2l aC)

) 2( aC) L (2s) H 2e

31 What are standard electrode potential and standard emf of

the galvanic cell

32 Write ernst eCuation and explain the terms involved in it

What part of the eCuation represents the correction factor for

nonstandard state conditions

33 Write ernst eCuation for the folloing reactions

a) rs) H 36e3H aC) L r3H aC) H 36e2H aC)

) l3H aC) H 3e L l s)

8112019 Chemistry Question 12sci (1)

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34 onsider the folloing E7 values and half reactions

(2s) H 2e L 2( aC) E7A7$3$M

u2H aC) H 2e L u s) E7A733+M

d2H aC) H 2e L ds) E7A77473

a) Which of the metals or nonmetals or ions is the strongest

oxidi=ing agent and hich is the strongest reducing agent

) 0he half reactions can e used to construct three galvanic

cells Which ill have the highest cell potential

3$ -redict hether

a) gH can oxidi=e - to -2H under standard state condition

) E7gA7+55M and E7

-A712M

3 -redict hether the folloing reactions occur under standard

state conditions

a) Dxidation of gs) y l2g) E7gA7Mlt E7

l2A13M

) eduction of 6e

3H

to 6e

2H

y us) E

7

6e3Hlt 6e2H A 7++MltE7uA14M

3+ 8etch and descrie the operation of

a) dry cell

) 2D2 fuel cell

3 What are the advantages and disadvantages of fuel cells

35 8etch lead storage cell

47 Write electrode reaction and overall cell reaction during the

operation of lead storage cell

41 Write electrode reaction and overall cell reaction hen lead

accumulator ehaves as an electrolytic cell

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42 o can ernst eCuation e used to sho that electrode

potential is eCual to the standard electrode potential y putting

approximate values in ernst eCuation se u2HNd half cell for

illustration

43 o are G7lt E7cell and eCuilirium constant related for a

particular reaction

44 Why is eCuilirium constant related to E7cell and not Ecell

4$ G7 for a redox reaction depends on the numer of electrons

transferred Explain

4 o does the eCuiliriumlt G7An6E7 explain that an

electrical potential is an intensive property

4+ Write shorthand notation for the cell for each of the folloing

reactions

a) u2H aC) H 2gs) H 2r L u s) H 2gr s)

) n2H aC) is oxidi=ed y r2 l)

4 rrange the folloing reducing agents in order of increasing

strength under standard state conditions 0he standard potentialsfor the reduction half reactions are given

gH aC) 7M)lt l3H aC) 1M)lt 62g) 2+M)lt l2g) 13M)lt

(2s) 7$4M)lt d2H aC) 74M)

45 rrange the folloing oxidi=ing agents in order of increasing

strength under standard state conditions 0he standard potentials

for the reduction half reactions are given

ls) 1M)lt l aC) 13M)lt us) 734M)lt 6es)744M)lt r

aC) 175M)lt is) 72M)

$7 Which species in each of the folloing pairs is etter oxidi=ing

agent under standard state conditions standard potential are

given) Give reasons for your anser

8112019 Chemistry Question 12sci (1)

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a) r2l) 175M) or u3H 14M)

) H aC) or gH aC) 7M)

c) -2H aC) 713M) or o2H 72M)

d) l2 g) 13M) or r3H 7+4M)

$1 Which species in each of the folloing pairs is etter reducing

agent under standard conditions E7 values are given Give

reasons for your anser

a) Fs) 2353M) or ampgs) 23M)

) o2H aC) 11M) or (n s) 714M)

c) e3H aC) 11M) or 0i2H73+M)

d) gl) 7M) or is) 723M)

PROBLEMS

1 conductivity cell lled ith 771amp Fl given at 2$o the

resistance of 74ohms 0he conductivity of Fl at 2$

o

is 7777

CHEMISTRY

d f O DF EEampE0

1) What are dloc8 elements

8112019 Chemistry Question 12sci (1)

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2) What are floc8 elements

3) Explain the meaning of

i) 0ransition series ii) (nner transition element

4) Explain the position of the folloing in periodic tale

i) dloc8 elements ii) anthanoids iii) ctinoids

$) Explain the oxidation state of 1st ro elements of transition

series

) Explain the oxidation states of lanthanoids and actinoids

+) Why do lanthanoids form coloured compounds ) Explainlt most of the transition metal compounds are

remar8aly coloured

5) Why chromium has electronic conguration 3d$ 4s1 and not 3d4

4s2

17) Why does copper sho anormal electronic conguration

11) Explainlt the trends in atomic and ionic si=es of lanthanoidsand also of 1st ro elements of transition series

12) What are actinoids

13) What are transuranic elements Write their name

14) Why transition elements sho tendency to form large numer

of complexes

1$) Explain the compounds of copper ((() are coloured ut thoseof =inc are colourless

1) o is potassium dichromate prepared from chrome ion

1+) Write the preparationlt properties and use of potassium

permanganate

8112019 Chemistry Question 12sci (1)

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1) Explainlt hy -t(M) complexes are generally octahedral hile

-t(() complexes are sCuare planar

15) ierentiate eteen lanthanoids and actinoids

27) What are chemical tins Give examples

21) Explain hy Gd3H is colourless

COORDINATION COMPOUNDS

1) What is the dierence eteen doule salt and coordinationcompounds

2) Explainlt hy 6e4)2 D4)22D) is a salt ut F 4P6e)Q is a

complex compound

3) Write the formula of the folloing complexes

i) alcium hexa cyano ferrate (()

ii) iammine dichloro platinum

iii) is ethylene diammine) dichloro iridium ((() ion

iv) -entamine caronato chromium ((() D(E

v) 0risethylene diammine ) coalt((() sulphate

vi) iamine ethylene diammine nic8el (() acetate

4) Write the rules hich are applied hile riting the formulas of

coordination compounds

$) ene the terms

i) entral metal atomgtion

ii) igand

8112019 Chemistry Question 12sci (1)

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iii) oordination compound

iv) oordination sphere

v) oordination numer

vi) oordination polyhedral

vii) omoleptic and heteroleptic complexes

viii) harge on the complexes

ix) oordination entity

) Write (- name of the folloing complexes

i) Pr2D)4 l2QD3

ii) P-ten)l4Q

iii) F 2Pi)4Q

iv) sP6el4Q

v) rl3-y)3

vi) F 3Po2D4)3Q

vii) Por2en)2Q

viii) P-tl4Q2

ix) Po2D))en)2Q2H

x) F 3Pl2D4)3Q

+) Explain the importance of principles of additive nomenclature

) (dentify the folloing ions y a simple test forming complex

compound

i) u2H ii) i2H iii) 6e3H iv) o2H

8112019 Chemistry Question 12sci (1)

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5) Dn the asis of WernerBs theory explainlt hy coalt amine

complexlt ol343 hen treated ith gD3 solution

precipitates only one ion even though there are three ions

17) alculate the eective atomic numer E) of the centralmetal atom in the folloing compounds

i) F 3P6e)Q ii) rD)

11) Write the postulates of WernerBs theory

12) Explain the onding in ol333 and ol3$3

13) Explain stereoisomerism in metal complexes ith coordination

numer 4 and 14) Why the tetrahedral complexes do not exhiit geometrical

isomerism

1$) ra cis and trans geometrical isomers of

i) dichlororomo iodo palladium (() ion

ii) P-t(()3)2l2Q

iii) Po((()3)l3Q

iv) Po((()3)42D)lQ2H

1) ra all possile geometrical isomers of P-t(M)

3)2-y)2l2Q2H ion

1+) Write oxidation statelt coordination numer and electronic

conguration of the metal atom in the folloing complexes

i) rl3-y)3 ii) F 4Pampn)Q

1) lassify the folloing ligands into monodentatelt polydentate

and amidentate

i) 3 ii) iii) iv) v) D2 vi) ethylene diammine

vii) oxalate

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viii) triaminotriethylamine

15) ol3$32D is a pin8 solidlt the solution of this salt is also

pin8 and formed 3mol of gl ith silver nitrate solution Dn

heating pin8 solidlt it loses one ater molecule and forms purplesolid having same ratio of o3l as that of pin8 solid 0he

purple solid hen dissolved in ater and treated ith forms 1 mol

of gl ra the structure and name of the pin8 and purple

solids

27) ame the octahedral complex ions

i) Po2D4) en)2QH ii) transPr)4 3)2Q

21) ra the structures of the folloing complexes

i) Pol4Q2 ii) Pampn3)Q2H iii) P-tlQ iv) iD)4 v) Pi)4Q2

22) (n an octahedral crystal eldlt dra the gure to sho splitting

of dorital

23) What are ea8 eld and strong eld ligands What is spectro

chemical series

24) Pi)4Q2 is diamagnetic hile Pr3)Q3H is paramagnetltexplain

2$) Dn the asis of valence ond theory explain the nature of

onding in the folloing complexes

i) Po6Q3 ii) Po2D4)3Q3

2) lue coloured copper sulphate solution gave folloing

experimental results Explain the same

i) With aCueous potassium chloride it gave right green solution

ii) With aCueous potassium Juoride it gave a green precipitate

2+) ra the structures of optically active isomers of Poen)3Q3H

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2) ra the geometrical and optical isomers of

i) Pol2en)2QH ii) Polen)23)Q2H

25) What is lin8age isomerism Explain ith an example

37) What are hydrate isomers Explain ith examples

31) Explain the structure of

i) upraammonium sulphate ii) Po3)Q3H

32) What are the limitations of valence ond theory

33) Explain the magnetic properties of coordination compounds

34) Write the salient features of crystal eld theory What are itslimitations

3$) Explain the octahedral geometry of complexes using crystal

eld theory

3) Write a note on colours in coordination compounds

3+) Explain the factors aecting the staility of coordination

compound3) Write rief the applications of coordination compounds

HALOGEN DERIVATIVES O ALANES AND ARENES

1) What are al8yl halides o are they classied

2) Write (- names of the folloing compounds

i)

ii) 2Al

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iii)

iv)

v)

vi) secutyl chloride

vii) neopentyl romide

viii) tutyl iodide

ix) isopropyl romide

3) o is ethyl romide prepared from

i) Ethyl alcohol ii) ethane iii) ethane

4)Write the preparation of isopropyl chloride using the folloing

reagents

i) -l3 ii) -l$ iii) l2 iv) l v) Dl2

$) o is group replaced y folloing functional rroups

i) OD ii) O iii) O iv) O2

) Write a note on

i) andmeyerBs reaction ii) Wurt= reaction iii) 6in8elstein reaction

iv) 6ittig reaction v) 6riedel raft reaction

+) (dentify and in the folloing

8112019 Chemistry Question 12sci (1)

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) Give the structures of the folloing compounds

i) 3romo2methyl pentane ii) 2romo3ethyl hexane iii) 1

holo utane

iv) pichloroen=ene v) 1lt1lt10richloroethane

5) student has performed an experiment in the laoratory e

mixed ater ith hexane and found to layers separated econd

time he mixed chloroform ith ater and he again found to

layers in the test tue Explain hich ill e upper layer and

hich one ill e loer layer in oth the experiments

17) onvert 1hloroutane into the folloing compounds

i) utane1ol ii) 1(odoutane iii) 3222 iv)

11) 6or each pair of compoundslt state hich compound is etter

2 sustrate

i) 2romoutanelt isopropyl romide ii) 1(odo2lt2dimethyl

propane or isopropyl iodide

12) hoose the memer that ill react faster from the folloing

pairs y 1 mechanism

13) -redict the expected product of sustitution reaction

i) isoutyl chloride mH sodium ethoxide

ii) nutyl chloride H sodium

iii) 1hloro propane H aC potassium hydroxide

iv) aniline H aD2gt l

14) Write the products

i) $22A2 H r L

ii) $A2 H r

8112019 Chemistry Question 12sci (1)

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iii)

iv)

v)

1$) (dentify the chiral and achiral molecules

i)

ii)

iii)

1) iscuss 2 mechanism of methyl romide using aCueous

FD ra energy prole diagram1+) Write the mechanism of the reaction hen tutyl chloride is

treated ith aCueous FD ith energy prole diagram

1) ierentiate eteen 1 and 2 mechanism

15) Explain the nature of ond in

i) 322 ii)

27) What are uses of

i) 0 ii) (odoform iii) hloroform iv) aron tetrachloride

21) l8yl halides are polar and miscile ith aterlt explain

22) Which one of the folloing is more easily hydrolysed y

aCueous FD

$l$ and $2l

23) rrange the folloing groups in descending order 2lt D3lt

D3lt DD and l

24) ssign or conguration to each of the folloing

structures

8112019 Chemistry Question 12sci (1)

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i)

ii)

iii)

iv)

DDlt -ED E0E

1) What are alcohols o are they classied

2) What are monohydric alcohols o are they classied

4) Write the structures of folloing alcohols

i) 1Ethylcyclohexanol ii) ex3en2ol iii)yclohex2en1ol

iv) -entane1lt4diol

v) 2lt4imethylhexane1lt3lt$triol

$) Explain the folloing

i) -ropan1ol has higher oiling point than nutane

ii) ampethanol is more solule in ater than -ropan1ol

) Write the mechanism of hydration of ethylene to ethyl alcohol

+) -ropan1ol can not e prepared y acid catalyst hydration of

propenelt then ho is propene converted into propan1ol

)5) o is propanone converted into

i) -ropan2ol ii) 2ampethyl propan2ol

17) o ill you otain utan2ol from

8112019 Chemistry Question 12sci (1)

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i) -ropanal ii) utan2one iii) ut2ene

11) o is propan1ol prepared from

i) -ropanal ii) -ropanoic acid

12) o is cyclopentanol prepared from

i) yclopentanone ii) yclopentene

14) Write the mechanism of acid catalysed dehydration of ethanol

to give ethane

1$) Write the structure of aldehyde lt caroxylic acid and ester

that yield folloing alcohol

1+) o ill you prepare

i) 2ampethylutane1ol from an al8ene

ii) cyclohexylmethanol from a Grignard reagent

iii) 1phenylethanol from acetaldehyde

1) o are folloing conversions rought aout

i) en=yl chloride to en=yl alcohol

ii) en=yl alcohol to en=oic acid

iii) 1Ethylcyclohexanol from yclohexanone

15) What are phenols o are they classied

27)21) Give the structures and (- names of isomeric phenols

represented y the molecular formula 17D

22) o is phenol prepared from

8112019 Chemistry Question 12sci (1)

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i) hloroen=ene ii) (sopropyl en=ene iii) en=ene sulphonic

acid iv) aniline

23 ) Explain the folloing

i) -henol is more acidic than phenol

ii) onitrophenol is more acidic than ocresol

iii) pnitrophenol is less volatile than onitrophenol

24) Explain the folloing reactions of phenol

i) FoleBs reaction ii) iemer0iemann reaction

2$) ame the reagents used to convert phenol intoi) picric acid ii) 2lt4lt0riromophenol iii) en=ene iv) ophenol

sulphonic acid

2) What is the action of folloing reagents on phenol i)

romine in 2 at lo temperature

ii) ilute nitric acid at room temperature iii) oncentrated

sulphuric acid at room temperature

2+) Give distinguish test eteen phenol and ethanol

2) What are ethers o are ethers classied

25) What is metamerism Give the structure and (- name of

metamers of 2ampethoxypropane

37) Write the mechanism for acidic dehydration of ethanol

31) o is diethyl ether prepared y continuous ethericationprocess Why is the process so called

32) o ill you prepared methoxyethane from

i) l8yl halide ii) ia=omethane

33) tate the important uses of i) -henol ii) diethyl ether

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34) Write the mechanism of action of hydrogen romide on tert

utyl methyl ether

3$) Explain the folloing reactions of anisole

i) romination ii) itration iii) 6riedelrafts al8ylation iv)6riedelrafts acylation

3) Explainlt i) 0he OD group attached to aromatic ring in

phenols and ii) 0he al8oxy group in al8yl aryl ethers are ortholt

para directing and activate the aromatic ring toars electrophilic

sustitution

3+) Write the chemical eCuations for Williamson synthesis of 2

Ethoxy2methypentane starting from ethanol and 2ampethylpentan2ol

3) n organic compound ith the formula 417D3 shos

properties of ether and alcohol hen treated ith an excess of

r yields only one compound 1lt2 diromomethane Write

structural formula of ether and that of alcohol

ALDEHYDES ETONES AND CABO$YLIC

ACID

1) Write the structure and give (- names of the folloing

compounds

i) chloropropionaldehyde

ii) Rhydroxyutyraldehyde

iii) isoutyraldehyde

iv) Rmethylvaleraldehyde

8112019 Chemistry Question 12sci (1)

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v) isopropyl methyl 8etone

vi) diisopropyl 8etone

vii) mromoen=aldehyde

viii) dien=yl 8etone

ix) divinyl 8etone

x) allyl methyl 8etone

xi) ethyl phenyl 8etone

xii) nutyrophenone

2) Write the structure of folloing compounds

i) 4ampethyl3nitroen=ophenone ii) 2ampethyl4oxopentanal iii)

3Dxopentanoic acid iv) 4chloropropiophenone v) 3

ampethoxyutanal vi) 4ydroxycyclohaxane caraldehyde

3) o ill you prepare i) propiophenone from propanenitrile ii)

4chloroen=aldehyde from 4chlorotoluene iii)

yclohaxanecaraldehyde from cyclohexylmethanol iv) 4

methoxyacetophenone from anisole v) 4methylen=aldehydefrom toluene

4) rrange the folloing compounds in the increasing order of

their oiling points

i) dimethyl etherlt ethyl alcohollt propanelt acetaldehyde

ii) acetonelt npropyl alcohollt ethyl methyl alcohol and nutane

$) What is the action of hydrogen cyanide in asic medium on i)utanone ii) 2lt4dichloroen=aldehyde

) What is the action of folloing compounds on cyclohexanone in

presence of dry hydrogen chloride

i) ethyl alcohol ii) ethylene glycol

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+) Write the structure of product in the folloing reactions

i) 322D3

ii) $2D3

) Write the structures of caronyl compounds and ammonia

derivatives that comine to give folloing imines

i)

ii)

iii)

iv)v)

vi)

5) Write the chemical eCuations for aldol condensation or

anni==aro reaction that folloing compounds undergo

i) -ropanal ii) 2ampethylpropanal iii) -entanal iv) 3

ampethylutanal v) cetophenonevi) pampethoxyen=aldehyde vii) 2ampethylcyclohaxanone viii)

chloral ix) yclopentanone

x) -henyl acetaldehyde xi) 1-henylpropan1one

17) Write the structure of the maKor product of the folloing

crossed aldol condensation

i) formaldehyde and propionaldehydeii) en=aldehyde ith acetone

11) (dentify the compounds SBlt SB and SB in the folloing

reactions and rerite the complete eCuations

i)

8112019 Chemistry Question 12sci (1)

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ii)

12)o ill you eect folloing tostep conversions

i) -ropanal into utanone ii) utanone into ut2ene iii)

en=ene into mromoacetophenone iv) ex3yne into exan

3one v) en=oic acid into mnitroen=ylalcohol

13) o ill you convert en=aldehyde into folloing compounds

ampore than one steps may e reCuired

i) en=ophenone ii) en=oic acid iii) 3-henylpropan1ol iv)hydroxyphenylacetic acid

14) Give a chemical test to distinguish eteen folloing pairs of

compounds

i) Ethanal and propanone ii) -rpopanal and propanone iii)

-entane2one and pentane3one

1$) Write the structure and (- names of folloing caroxylicacids

i) ltRdimethylutanoic acid ii) Rphenylutyric acid iii) 1038389

chloromethylvaleric acid

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a) dissolution of sugar in hot coee

) separation of r and Fr from their mixture

c) spreading of fragrance hen a ottle of perfume is opened

d) Jo of heat from cold oKect to hot oKect

e) heat transfer from ice to room at 2$

37) ene entropy Give its units What does entropy measures

31)Explain ho entropy changes in the folloing processes

a) free=ing of liCuid

) sulimation of solid

c) dissolving of ater in sugar

d) condensation of vapour

32) Which memer of the folloing pairs have larger entropy

Why

a) D2s) or D2g)

) 3Dl) or 2$D2$l)

c) Dg) or 2D4g)

d) eg) or Frg)

e) as) or als)

33) Why is it more convenience to predict spontaneity of reaction

in terms of Gsys rather than total34) ene Gis energy and change in Gis energy What are

the units of Gis energy

3$) tate second la of thermodynamics in terms of entropy and

express it mathematically

8112019 Chemistry Question 12sci (1)

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3) tate third la of thermodynamics What is its usefulness

3+) Why is it impossile for any sustance to have an asolute

entropy =ero at temperature greater than 7F

3) (t is impossile for a reaction to e spontaneous yetexothermic Explain ith example

35) (s it possile for a reaction to e nonspontaneous yet

exothermic Explain ith example

47) -redict the sign of in the folloing process Give reasons

for your anser

a) 2D4g) 2D2g)) 6e2D3s) H 32g) 26es) H 32Dg)

c) 2g) H 32g) 23g)

d) ampgD3s) 23g)

e) D2g) D2s)

f) l2g) 2lg)

41) What can e said aout the spontaneity of reactions hen

a) and are oth positive

) and oth are negative

c) is positive and is negative

d) is negative and is positive

42) (dentify hich memer of the folloing pairs has largerentropy Why

a) eg) in a volume of 1 or eg) in a volume of $ oth at 2$

) D2g) at 1atm or D2g) at 17atm oth at the same temperature

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c) 2$Dl) or 2$Dg)

d) $ moles of e or 2 moles of e

43) What are the signs of for the folloing reaction

Explain ith reasons

2g) 2g)

44) erive the relationship eteen G and total

4$) Iustify the inclusion of Crev and 0 in the denition of entropylt

A Crevgt 0

4) 0he increase in entropy of a system alone does not guarantee

the spontaneity of a process Explain

4+) 0he criterion of spontaneity in terms of Gis energy is the

same as that laid don y second la of thermodynamic o

PROBLEMS

1) 0hree moles of an ideal gas are expanded isothermally from a

volume of 377cm3 to 2$ at 377F against a pressure of 15atm

alculate the or8 done in atm and Koules2) Dne mole of an ideal gas is compressed from $77cm3 against a

constant pressure of 121 17$-a 0he or8 involved in the

process is 3$7I alculate the nal volume

3) alculate the maximum or8 hen 24g of oxygen are

expanded isothermally and reversily from a pressure of 1

17$-a to 1778-a at 25F

4) 0hree moles of an ideal gas are compressed isothermally andreversily to a volume of 2 0he or8 done is 2538I at 22

alculate the initial volume of a gas

8112019 Chemistry Question 12sci (1)

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$) 2 172 8g of nitrogen is expanded isothermally and

reversily at 377F from 1$1$ 17$ m 2 hen the or8 done is

found to e 1+338 I 6ind the nal pressure

) sample of a gas asors 47778I of heata) if volume remains constantlt hat is

) uppose that in addition to asorption of heat y the samplelt

the surrounding does 27778I of or8 on the samplelt hat is

c) uppose that as the original sample asors heatlt it expands

against atmospheric pressure and does 778 I of or8 on its

surroundings What is

+) alculate the or8 done in each of the folloing reactions

tate hether or8 is done on or y the system

a) 0he oxidation of one mole of D2 at $7

2D2g) H D2g) 2D3g)

) decomposition of 2 moles of 4D3 at 177

4D3s) 2Dg) H 22Dg)

) 0he enthalpy change for the reaction

24g) H 2g) 2g) is 27I hen 177m of ethylene and

177m of 2 react at 1atm pressure alculate the pressure

volume or8 and

5) alculate standard enthalpy of the reaction

6e2D3s) H 3Dg) 26es) H 3D2g) from the folloing data

f 76e2D3)A2428Imol1ltf 7D)A117$8Imol1lt

f 7D2)A353$8Imol1

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8112019 Chemistry Question 12sci (1)

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Electro chemitry

Theory

1ene the terms resistivitylt conductivity and molar

conductivity Give its ( units

2Explain the terms conductivity and molar conductivity o are

they interrelated

3Why does conductivity of s solution decrease on dilution of a

solution

4o does molar conductivity of an electrolyte vary ith

concentration

$o does the variation in molar conductivity of an electrolyte

ith concentration diers for strong and ea8 electrolytes

Explain the dierent ehaviour of strong and ea8 electrolytes

toards the variation of conductivity ith concentration

+tate and explain Fohlrausch la of independent migration of

ions o it is useful to determine the molar conductivity of ea8

electrolytes at =ero concentration

o is the molar conductivity of strong electrolytes at =ero

concentration determined y graphical method Why is this

method not useful for ea8 electrolytes

5What is cell constant What is its unit o is it determined

17ene anode and cathode

11 Why is cathode in electrolytic cell considered to e negative

and anode positive

12 -redict the half cell reactions that occur hen fused Fl is

electroly=ed in a cell ith inert electrodes What is the overall cell

reaction

8112019 Chemistry Question 12sci (1)

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13 tate 6aradayBs las of electrolysis

14o ill you calculate the numer of moles of electrons

actually passed and mass of the sustance produced during

electrolysis of a salt solution using reaction stoichiometry1$o many electrons ill have a total charge of 1 coulom

1 o many faradayBs ould e reCuired to plate out 177 mole

of free metal from the folloing cations

a) ampg2H

) r3H

c) -2H

d) uH

1+ ene coulom and faraday

1 escrie the electrolysis of molten al using inert

electrodes

15 What is the dierence eteen electrolytic cell and voltaic

cell

27 Why is anode in galvanic cell considered to e negative and

cathode positive electrode

21 8etch the cell for the electrolysis of molten al (ndicate

cathodelt anode and their signs ho the Jo of electrons and

ions

22 What is salt ridge What are its functions in galvanic cell

23 What are the conventions used to rite cell diagramcell

formula)

24 escrie the construction of aniel cell Write electrode half

reactions and net cell reaction in aniel cell

8112019 Chemistry Question 12sci (1)

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2$ escrie the folloing types of electrodes giving one

examplelt ith reference to formulationlt electrode reaction and

ernst eCuation for electrode potential

a) metalsparingly salt electrode) gas electrode

2 What is redox electrode Give one example ith formulationlt

electrode reaction and ernst eCuation for electrode potential

2+ ene the terms oxidation potentiallt reduction potential and

cell potential

2 What conditions are reCuired for a cell potential to e calledstandard cell potential

25 6ormulate a cell for each of the folloing electrode reactions

a) n2H aC) H 2gl s) L n4H aC) H 2gs) H2l aC)

) ampg s) H r2l) L ampg2H aC) H 2r aC)

37 6ormulate a cell from the folloing electrode reactions

a) l2g) H 2e L 2l aC)

) 2( aC) L (2s) H 2e

31 What are standard electrode potential and standard emf of

the galvanic cell

32 Write ernst eCuation and explain the terms involved in it

What part of the eCuation represents the correction factor for

nonstandard state conditions

33 Write ernst eCuation for the folloing reactions

a) rs) H 36e3H aC) L r3H aC) H 36e2H aC)

) l3H aC) H 3e L l s)

8112019 Chemistry Question 12sci (1)

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34 onsider the folloing E7 values and half reactions

(2s) H 2e L 2( aC) E7A7$3$M

u2H aC) H 2e L u s) E7A733+M

d2H aC) H 2e L ds) E7A77473

a) Which of the metals or nonmetals or ions is the strongest

oxidi=ing agent and hich is the strongest reducing agent

) 0he half reactions can e used to construct three galvanic

cells Which ill have the highest cell potential

3$ -redict hether

a) gH can oxidi=e - to -2H under standard state condition

) E7gA7+55M and E7

-A712M

3 -redict hether the folloing reactions occur under standard

state conditions

a) Dxidation of gs) y l2g) E7gA7Mlt E7

l2A13M

) eduction of 6e

3H

to 6e

2H

y us) E

7

6e3Hlt 6e2H A 7++MltE7uA14M

3+ 8etch and descrie the operation of

a) dry cell

) 2D2 fuel cell

3 What are the advantages and disadvantages of fuel cells

35 8etch lead storage cell

47 Write electrode reaction and overall cell reaction during the

operation of lead storage cell

41 Write electrode reaction and overall cell reaction hen lead

accumulator ehaves as an electrolytic cell

8112019 Chemistry Question 12sci (1)

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42 o can ernst eCuation e used to sho that electrode

potential is eCual to the standard electrode potential y putting

approximate values in ernst eCuation se u2HNd half cell for

illustration

43 o are G7lt E7cell and eCuilirium constant related for a

particular reaction

44 Why is eCuilirium constant related to E7cell and not Ecell

4$ G7 for a redox reaction depends on the numer of electrons

transferred Explain

4 o does the eCuiliriumlt G7An6E7 explain that an

electrical potential is an intensive property

4+ Write shorthand notation for the cell for each of the folloing

reactions

a) u2H aC) H 2gs) H 2r L u s) H 2gr s)

) n2H aC) is oxidi=ed y r2 l)

4 rrange the folloing reducing agents in order of increasing

strength under standard state conditions 0he standard potentialsfor the reduction half reactions are given

gH aC) 7M)lt l3H aC) 1M)lt 62g) 2+M)lt l2g) 13M)lt

(2s) 7$4M)lt d2H aC) 74M)

45 rrange the folloing oxidi=ing agents in order of increasing

strength under standard state conditions 0he standard potentials

for the reduction half reactions are given

ls) 1M)lt l aC) 13M)lt us) 734M)lt 6es)744M)lt r

aC) 175M)lt is) 72M)

$7 Which species in each of the folloing pairs is etter oxidi=ing

agent under standard state conditions standard potential are

given) Give reasons for your anser

8112019 Chemistry Question 12sci (1)

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a) r2l) 175M) or u3H 14M)

) H aC) or gH aC) 7M)

c) -2H aC) 713M) or o2H 72M)

d) l2 g) 13M) or r3H 7+4M)

$1 Which species in each of the folloing pairs is etter reducing

agent under standard conditions E7 values are given Give

reasons for your anser

a) Fs) 2353M) or ampgs) 23M)

) o2H aC) 11M) or (n s) 714M)

c) e3H aC) 11M) or 0i2H73+M)

d) gl) 7M) or is) 723M)

PROBLEMS

1 conductivity cell lled ith 771amp Fl given at 2$o the

resistance of 74ohms 0he conductivity of Fl at 2$

o

is 7777

CHEMISTRY

d f O DF EEampE0

1) What are dloc8 elements

8112019 Chemistry Question 12sci (1)

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2) What are floc8 elements

3) Explain the meaning of

i) 0ransition series ii) (nner transition element

4) Explain the position of the folloing in periodic tale

i) dloc8 elements ii) anthanoids iii) ctinoids

$) Explain the oxidation state of 1st ro elements of transition

series

) Explain the oxidation states of lanthanoids and actinoids

+) Why do lanthanoids form coloured compounds ) Explainlt most of the transition metal compounds are

remar8aly coloured

5) Why chromium has electronic conguration 3d$ 4s1 and not 3d4

4s2

17) Why does copper sho anormal electronic conguration

11) Explainlt the trends in atomic and ionic si=es of lanthanoidsand also of 1st ro elements of transition series

12) What are actinoids

13) What are transuranic elements Write their name

14) Why transition elements sho tendency to form large numer

of complexes

1$) Explain the compounds of copper ((() are coloured ut thoseof =inc are colourless

1) o is potassium dichromate prepared from chrome ion

1+) Write the preparationlt properties and use of potassium

permanganate

8112019 Chemistry Question 12sci (1)

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1) Explainlt hy -t(M) complexes are generally octahedral hile

-t(() complexes are sCuare planar

15) ierentiate eteen lanthanoids and actinoids

27) What are chemical tins Give examples

21) Explain hy Gd3H is colourless

COORDINATION COMPOUNDS

1) What is the dierence eteen doule salt and coordinationcompounds

2) Explainlt hy 6e4)2 D4)22D) is a salt ut F 4P6e)Q is a

complex compound

3) Write the formula of the folloing complexes

i) alcium hexa cyano ferrate (()

ii) iammine dichloro platinum

iii) is ethylene diammine) dichloro iridium ((() ion

iv) -entamine caronato chromium ((() D(E

v) 0risethylene diammine ) coalt((() sulphate

vi) iamine ethylene diammine nic8el (() acetate

4) Write the rules hich are applied hile riting the formulas of

coordination compounds

$) ene the terms

i) entral metal atomgtion

ii) igand

8112019 Chemistry Question 12sci (1)

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iii) oordination compound

iv) oordination sphere

v) oordination numer

vi) oordination polyhedral

vii) omoleptic and heteroleptic complexes

viii) harge on the complexes

ix) oordination entity

) Write (- name of the folloing complexes

i) Pr2D)4 l2QD3

ii) P-ten)l4Q

iii) F 2Pi)4Q

iv) sP6el4Q

v) rl3-y)3

vi) F 3Po2D4)3Q

vii) Por2en)2Q

viii) P-tl4Q2

ix) Po2D))en)2Q2H

x) F 3Pl2D4)3Q

+) Explain the importance of principles of additive nomenclature

) (dentify the folloing ions y a simple test forming complex

compound

i) u2H ii) i2H iii) 6e3H iv) o2H

8112019 Chemistry Question 12sci (1)

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5) Dn the asis of WernerBs theory explainlt hy coalt amine

complexlt ol343 hen treated ith gD3 solution

precipitates only one ion even though there are three ions

17) alculate the eective atomic numer E) of the centralmetal atom in the folloing compounds

i) F 3P6e)Q ii) rD)

11) Write the postulates of WernerBs theory

12) Explain the onding in ol333 and ol3$3

13) Explain stereoisomerism in metal complexes ith coordination

numer 4 and 14) Why the tetrahedral complexes do not exhiit geometrical

isomerism

1$) ra cis and trans geometrical isomers of

i) dichlororomo iodo palladium (() ion

ii) P-t(()3)2l2Q

iii) Po((()3)l3Q

iv) Po((()3)42D)lQ2H

1) ra all possile geometrical isomers of P-t(M)

3)2-y)2l2Q2H ion

1+) Write oxidation statelt coordination numer and electronic

conguration of the metal atom in the folloing complexes

i) rl3-y)3 ii) F 4Pampn)Q

1) lassify the folloing ligands into monodentatelt polydentate

and amidentate

i) 3 ii) iii) iv) v) D2 vi) ethylene diammine

vii) oxalate

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viii) triaminotriethylamine

15) ol3$32D is a pin8 solidlt the solution of this salt is also

pin8 and formed 3mol of gl ith silver nitrate solution Dn

heating pin8 solidlt it loses one ater molecule and forms purplesolid having same ratio of o3l as that of pin8 solid 0he

purple solid hen dissolved in ater and treated ith forms 1 mol

of gl ra the structure and name of the pin8 and purple

solids

27) ame the octahedral complex ions

i) Po2D4) en)2QH ii) transPr)4 3)2Q

21) ra the structures of the folloing complexes

i) Pol4Q2 ii) Pampn3)Q2H iii) P-tlQ iv) iD)4 v) Pi)4Q2

22) (n an octahedral crystal eldlt dra the gure to sho splitting

of dorital

23) What are ea8 eld and strong eld ligands What is spectro

chemical series

24) Pi)4Q2 is diamagnetic hile Pr3)Q3H is paramagnetltexplain

2$) Dn the asis of valence ond theory explain the nature of

onding in the folloing complexes

i) Po6Q3 ii) Po2D4)3Q3

2) lue coloured copper sulphate solution gave folloing

experimental results Explain the same

i) With aCueous potassium chloride it gave right green solution

ii) With aCueous potassium Juoride it gave a green precipitate

2+) ra the structures of optically active isomers of Poen)3Q3H

8112019 Chemistry Question 12sci (1)

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2) ra the geometrical and optical isomers of

i) Pol2en)2QH ii) Polen)23)Q2H

25) What is lin8age isomerism Explain ith an example

37) What are hydrate isomers Explain ith examples

31) Explain the structure of

i) upraammonium sulphate ii) Po3)Q3H

32) What are the limitations of valence ond theory

33) Explain the magnetic properties of coordination compounds

34) Write the salient features of crystal eld theory What are itslimitations

3$) Explain the octahedral geometry of complexes using crystal

eld theory

3) Write a note on colours in coordination compounds

3+) Explain the factors aecting the staility of coordination

compound3) Write rief the applications of coordination compounds

HALOGEN DERIVATIVES O ALANES AND ARENES

1) What are al8yl halides o are they classied

2) Write (- names of the folloing compounds

i)

ii) 2Al

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iii)

iv)

v)

vi) secutyl chloride

vii) neopentyl romide

viii) tutyl iodide

ix) isopropyl romide

3) o is ethyl romide prepared from

i) Ethyl alcohol ii) ethane iii) ethane

4)Write the preparation of isopropyl chloride using the folloing

reagents

i) -l3 ii) -l$ iii) l2 iv) l v) Dl2

$) o is group replaced y folloing functional rroups

i) OD ii) O iii) O iv) O2

) Write a note on

i) andmeyerBs reaction ii) Wurt= reaction iii) 6in8elstein reaction

iv) 6ittig reaction v) 6riedel raft reaction

+) (dentify and in the folloing

8112019 Chemistry Question 12sci (1)

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) Give the structures of the folloing compounds

i) 3romo2methyl pentane ii) 2romo3ethyl hexane iii) 1

holo utane

iv) pichloroen=ene v) 1lt1lt10richloroethane

5) student has performed an experiment in the laoratory e

mixed ater ith hexane and found to layers separated econd

time he mixed chloroform ith ater and he again found to

layers in the test tue Explain hich ill e upper layer and

hich one ill e loer layer in oth the experiments

17) onvert 1hloroutane into the folloing compounds

i) utane1ol ii) 1(odoutane iii) 3222 iv)

11) 6or each pair of compoundslt state hich compound is etter

2 sustrate

i) 2romoutanelt isopropyl romide ii) 1(odo2lt2dimethyl

propane or isopropyl iodide

12) hoose the memer that ill react faster from the folloing

pairs y 1 mechanism

13) -redict the expected product of sustitution reaction

i) isoutyl chloride mH sodium ethoxide

ii) nutyl chloride H sodium

iii) 1hloro propane H aC potassium hydroxide

iv) aniline H aD2gt l

14) Write the products

i) $22A2 H r L

ii) $A2 H r

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iii)

iv)

v)

1$) (dentify the chiral and achiral molecules

i)

ii)

iii)

1) iscuss 2 mechanism of methyl romide using aCueous

FD ra energy prole diagram1+) Write the mechanism of the reaction hen tutyl chloride is

treated ith aCueous FD ith energy prole diagram

1) ierentiate eteen 1 and 2 mechanism

15) Explain the nature of ond in

i) 322 ii)

27) What are uses of

i) 0 ii) (odoform iii) hloroform iv) aron tetrachloride

21) l8yl halides are polar and miscile ith aterlt explain

22) Which one of the folloing is more easily hydrolysed y

aCueous FD

$l$ and $2l

23) rrange the folloing groups in descending order 2lt D3lt

D3lt DD and l

24) ssign or conguration to each of the folloing

structures

8112019 Chemistry Question 12sci (1)

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i)

ii)

iii)

iv)

DDlt -ED E0E

1) What are alcohols o are they classied

2) What are monohydric alcohols o are they classied

4) Write the structures of folloing alcohols

i) 1Ethylcyclohexanol ii) ex3en2ol iii)yclohex2en1ol

iv) -entane1lt4diol

v) 2lt4imethylhexane1lt3lt$triol

$) Explain the folloing

i) -ropan1ol has higher oiling point than nutane

ii) ampethanol is more solule in ater than -ropan1ol

) Write the mechanism of hydration of ethylene to ethyl alcohol

+) -ropan1ol can not e prepared y acid catalyst hydration of

propenelt then ho is propene converted into propan1ol

)5) o is propanone converted into

i) -ropan2ol ii) 2ampethyl propan2ol

17) o ill you otain utan2ol from

8112019 Chemistry Question 12sci (1)

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i) -ropanal ii) utan2one iii) ut2ene

11) o is propan1ol prepared from

i) -ropanal ii) -ropanoic acid

12) o is cyclopentanol prepared from

i) yclopentanone ii) yclopentene

14) Write the mechanism of acid catalysed dehydration of ethanol

to give ethane

1$) Write the structure of aldehyde lt caroxylic acid and ester

that yield folloing alcohol

1+) o ill you prepare

i) 2ampethylutane1ol from an al8ene

ii) cyclohexylmethanol from a Grignard reagent

iii) 1phenylethanol from acetaldehyde

1) o are folloing conversions rought aout

i) en=yl chloride to en=yl alcohol

ii) en=yl alcohol to en=oic acid

iii) 1Ethylcyclohexanol from yclohexanone

15) What are phenols o are they classied

27)21) Give the structures and (- names of isomeric phenols

represented y the molecular formula 17D

22) o is phenol prepared from

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i) hloroen=ene ii) (sopropyl en=ene iii) en=ene sulphonic

acid iv) aniline

23 ) Explain the folloing

i) -henol is more acidic than phenol

ii) onitrophenol is more acidic than ocresol

iii) pnitrophenol is less volatile than onitrophenol

24) Explain the folloing reactions of phenol

i) FoleBs reaction ii) iemer0iemann reaction

2$) ame the reagents used to convert phenol intoi) picric acid ii) 2lt4lt0riromophenol iii) en=ene iv) ophenol

sulphonic acid

2) What is the action of folloing reagents on phenol i)

romine in 2 at lo temperature

ii) ilute nitric acid at room temperature iii) oncentrated

sulphuric acid at room temperature

2+) Give distinguish test eteen phenol and ethanol

2) What are ethers o are ethers classied

25) What is metamerism Give the structure and (- name of

metamers of 2ampethoxypropane

37) Write the mechanism for acidic dehydration of ethanol

31) o is diethyl ether prepared y continuous ethericationprocess Why is the process so called

32) o ill you prepared methoxyethane from

i) l8yl halide ii) ia=omethane

33) tate the important uses of i) -henol ii) diethyl ether

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34) Write the mechanism of action of hydrogen romide on tert

utyl methyl ether

3$) Explain the folloing reactions of anisole

i) romination ii) itration iii) 6riedelrafts al8ylation iv)6riedelrafts acylation

3) Explainlt i) 0he OD group attached to aromatic ring in

phenols and ii) 0he al8oxy group in al8yl aryl ethers are ortholt

para directing and activate the aromatic ring toars electrophilic

sustitution

3+) Write the chemical eCuations for Williamson synthesis of 2

Ethoxy2methypentane starting from ethanol and 2ampethylpentan2ol

3) n organic compound ith the formula 417D3 shos

properties of ether and alcohol hen treated ith an excess of

r yields only one compound 1lt2 diromomethane Write

structural formula of ether and that of alcohol

ALDEHYDES ETONES AND CABO$YLIC

ACID

1) Write the structure and give (- names of the folloing

compounds

i) chloropropionaldehyde

ii) Rhydroxyutyraldehyde

iii) isoutyraldehyde

iv) Rmethylvaleraldehyde

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v) isopropyl methyl 8etone

vi) diisopropyl 8etone

vii) mromoen=aldehyde

viii) dien=yl 8etone

ix) divinyl 8etone

x) allyl methyl 8etone

xi) ethyl phenyl 8etone

xii) nutyrophenone

2) Write the structure of folloing compounds

i) 4ampethyl3nitroen=ophenone ii) 2ampethyl4oxopentanal iii)

3Dxopentanoic acid iv) 4chloropropiophenone v) 3

ampethoxyutanal vi) 4ydroxycyclohaxane caraldehyde

3) o ill you prepare i) propiophenone from propanenitrile ii)

4chloroen=aldehyde from 4chlorotoluene iii)

yclohaxanecaraldehyde from cyclohexylmethanol iv) 4

methoxyacetophenone from anisole v) 4methylen=aldehydefrom toluene

4) rrange the folloing compounds in the increasing order of

their oiling points

i) dimethyl etherlt ethyl alcohollt propanelt acetaldehyde

ii) acetonelt npropyl alcohollt ethyl methyl alcohol and nutane

$) What is the action of hydrogen cyanide in asic medium on i)utanone ii) 2lt4dichloroen=aldehyde

) What is the action of folloing compounds on cyclohexanone in

presence of dry hydrogen chloride

i) ethyl alcohol ii) ethylene glycol

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+) Write the structure of product in the folloing reactions

i) 322D3

ii) $2D3

) Write the structures of caronyl compounds and ammonia

derivatives that comine to give folloing imines

i)

ii)

iii)

iv)v)

vi)

5) Write the chemical eCuations for aldol condensation or

anni==aro reaction that folloing compounds undergo

i) -ropanal ii) 2ampethylpropanal iii) -entanal iv) 3

ampethylutanal v) cetophenonevi) pampethoxyen=aldehyde vii) 2ampethylcyclohaxanone viii)

chloral ix) yclopentanone

x) -henyl acetaldehyde xi) 1-henylpropan1one

17) Write the structure of the maKor product of the folloing

crossed aldol condensation

i) formaldehyde and propionaldehydeii) en=aldehyde ith acetone

11) (dentify the compounds SBlt SB and SB in the folloing

reactions and rerite the complete eCuations

i)

8112019 Chemistry Question 12sci (1)

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ii)

12)o ill you eect folloing tostep conversions

i) -ropanal into utanone ii) utanone into ut2ene iii)

en=ene into mromoacetophenone iv) ex3yne into exan

3one v) en=oic acid into mnitroen=ylalcohol

13) o ill you convert en=aldehyde into folloing compounds

ampore than one steps may e reCuired

i) en=ophenone ii) en=oic acid iii) 3-henylpropan1ol iv)hydroxyphenylacetic acid

14) Give a chemical test to distinguish eteen folloing pairs of

compounds

i) Ethanal and propanone ii) -rpopanal and propanone iii)

-entane2one and pentane3one

1$) Write the structure and (- names of folloing caroxylicacids

i) ltRdimethylutanoic acid ii) Rphenylutyric acid iii) 1038389

chloromethylvaleric acid

Page 13: Chemistry Question 12sci (1)

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3) tate third la of thermodynamics What is its usefulness

3+) Why is it impossile for any sustance to have an asolute

entropy =ero at temperature greater than 7F

3) (t is impossile for a reaction to e spontaneous yetexothermic Explain ith example

35) (s it possile for a reaction to e nonspontaneous yet

exothermic Explain ith example

47) -redict the sign of in the folloing process Give reasons

for your anser

a) 2D4g) 2D2g)) 6e2D3s) H 32g) 26es) H 32Dg)

c) 2g) H 32g) 23g)

d) ampgD3s) 23g)

e) D2g) D2s)

f) l2g) 2lg)

41) What can e said aout the spontaneity of reactions hen

a) and are oth positive

) and oth are negative

c) is positive and is negative

d) is negative and is positive

42) (dentify hich memer of the folloing pairs has largerentropy Why

a) eg) in a volume of 1 or eg) in a volume of $ oth at 2$

) D2g) at 1atm or D2g) at 17atm oth at the same temperature

8112019 Chemistry Question 12sci (1)

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c) 2$Dl) or 2$Dg)

d) $ moles of e or 2 moles of e

43) What are the signs of for the folloing reaction

Explain ith reasons

2g) 2g)

44) erive the relationship eteen G and total

4$) Iustify the inclusion of Crev and 0 in the denition of entropylt

A Crevgt 0

4) 0he increase in entropy of a system alone does not guarantee

the spontaneity of a process Explain

4+) 0he criterion of spontaneity in terms of Gis energy is the

same as that laid don y second la of thermodynamic o

PROBLEMS

1) 0hree moles of an ideal gas are expanded isothermally from a

volume of 377cm3 to 2$ at 377F against a pressure of 15atm

alculate the or8 done in atm and Koules2) Dne mole of an ideal gas is compressed from $77cm3 against a

constant pressure of 121 17$-a 0he or8 involved in the

process is 3$7I alculate the nal volume

3) alculate the maximum or8 hen 24g of oxygen are

expanded isothermally and reversily from a pressure of 1

17$-a to 1778-a at 25F

4) 0hree moles of an ideal gas are compressed isothermally andreversily to a volume of 2 0he or8 done is 2538I at 22

alculate the initial volume of a gas

8112019 Chemistry Question 12sci (1)

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$) 2 172 8g of nitrogen is expanded isothermally and

reversily at 377F from 1$1$ 17$ m 2 hen the or8 done is

found to e 1+338 I 6ind the nal pressure

) sample of a gas asors 47778I of heata) if volume remains constantlt hat is

) uppose that in addition to asorption of heat y the samplelt

the surrounding does 27778I of or8 on the samplelt hat is

c) uppose that as the original sample asors heatlt it expands

against atmospheric pressure and does 778 I of or8 on its

surroundings What is

+) alculate the or8 done in each of the folloing reactions

tate hether or8 is done on or y the system

a) 0he oxidation of one mole of D2 at $7

2D2g) H D2g) 2D3g)

) decomposition of 2 moles of 4D3 at 177

4D3s) 2Dg) H 22Dg)

) 0he enthalpy change for the reaction

24g) H 2g) 2g) is 27I hen 177m of ethylene and

177m of 2 react at 1atm pressure alculate the pressure

volume or8 and

5) alculate standard enthalpy of the reaction

6e2D3s) H 3Dg) 26es) H 3D2g) from the folloing data

f 76e2D3)A2428Imol1ltf 7D)A117$8Imol1lt

f 7D2)A353$8Imol1

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8112019 Chemistry Question 12sci (1)

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Electro chemitry

Theory

1ene the terms resistivitylt conductivity and molar

conductivity Give its ( units

2Explain the terms conductivity and molar conductivity o are

they interrelated

3Why does conductivity of s solution decrease on dilution of a

solution

4o does molar conductivity of an electrolyte vary ith

concentration

$o does the variation in molar conductivity of an electrolyte

ith concentration diers for strong and ea8 electrolytes

Explain the dierent ehaviour of strong and ea8 electrolytes

toards the variation of conductivity ith concentration

+tate and explain Fohlrausch la of independent migration of

ions o it is useful to determine the molar conductivity of ea8

electrolytes at =ero concentration

o is the molar conductivity of strong electrolytes at =ero

concentration determined y graphical method Why is this

method not useful for ea8 electrolytes

5What is cell constant What is its unit o is it determined

17ene anode and cathode

11 Why is cathode in electrolytic cell considered to e negative

and anode positive

12 -redict the half cell reactions that occur hen fused Fl is

electroly=ed in a cell ith inert electrodes What is the overall cell

reaction

8112019 Chemistry Question 12sci (1)

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13 tate 6aradayBs las of electrolysis

14o ill you calculate the numer of moles of electrons

actually passed and mass of the sustance produced during

electrolysis of a salt solution using reaction stoichiometry1$o many electrons ill have a total charge of 1 coulom

1 o many faradayBs ould e reCuired to plate out 177 mole

of free metal from the folloing cations

a) ampg2H

) r3H

c) -2H

d) uH

1+ ene coulom and faraday

1 escrie the electrolysis of molten al using inert

electrodes

15 What is the dierence eteen electrolytic cell and voltaic

cell

27 Why is anode in galvanic cell considered to e negative and

cathode positive electrode

21 8etch the cell for the electrolysis of molten al (ndicate

cathodelt anode and their signs ho the Jo of electrons and

ions

22 What is salt ridge What are its functions in galvanic cell

23 What are the conventions used to rite cell diagramcell

formula)

24 escrie the construction of aniel cell Write electrode half

reactions and net cell reaction in aniel cell

8112019 Chemistry Question 12sci (1)

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2$ escrie the folloing types of electrodes giving one

examplelt ith reference to formulationlt electrode reaction and

ernst eCuation for electrode potential

a) metalsparingly salt electrode) gas electrode

2 What is redox electrode Give one example ith formulationlt

electrode reaction and ernst eCuation for electrode potential

2+ ene the terms oxidation potentiallt reduction potential and

cell potential

2 What conditions are reCuired for a cell potential to e calledstandard cell potential

25 6ormulate a cell for each of the folloing electrode reactions

a) n2H aC) H 2gl s) L n4H aC) H 2gs) H2l aC)

) ampg s) H r2l) L ampg2H aC) H 2r aC)

37 6ormulate a cell from the folloing electrode reactions

a) l2g) H 2e L 2l aC)

) 2( aC) L (2s) H 2e

31 What are standard electrode potential and standard emf of

the galvanic cell

32 Write ernst eCuation and explain the terms involved in it

What part of the eCuation represents the correction factor for

nonstandard state conditions

33 Write ernst eCuation for the folloing reactions

a) rs) H 36e3H aC) L r3H aC) H 36e2H aC)

) l3H aC) H 3e L l s)

8112019 Chemistry Question 12sci (1)

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34 onsider the folloing E7 values and half reactions

(2s) H 2e L 2( aC) E7A7$3$M

u2H aC) H 2e L u s) E7A733+M

d2H aC) H 2e L ds) E7A77473

a) Which of the metals or nonmetals or ions is the strongest

oxidi=ing agent and hich is the strongest reducing agent

) 0he half reactions can e used to construct three galvanic

cells Which ill have the highest cell potential

3$ -redict hether

a) gH can oxidi=e - to -2H under standard state condition

) E7gA7+55M and E7

-A712M

3 -redict hether the folloing reactions occur under standard

state conditions

a) Dxidation of gs) y l2g) E7gA7Mlt E7

l2A13M

) eduction of 6e

3H

to 6e

2H

y us) E

7

6e3Hlt 6e2H A 7++MltE7uA14M

3+ 8etch and descrie the operation of

a) dry cell

) 2D2 fuel cell

3 What are the advantages and disadvantages of fuel cells

35 8etch lead storage cell

47 Write electrode reaction and overall cell reaction during the

operation of lead storage cell

41 Write electrode reaction and overall cell reaction hen lead

accumulator ehaves as an electrolytic cell

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42 o can ernst eCuation e used to sho that electrode

potential is eCual to the standard electrode potential y putting

approximate values in ernst eCuation se u2HNd half cell for

illustration

43 o are G7lt E7cell and eCuilirium constant related for a

particular reaction

44 Why is eCuilirium constant related to E7cell and not Ecell

4$ G7 for a redox reaction depends on the numer of electrons

transferred Explain

4 o does the eCuiliriumlt G7An6E7 explain that an

electrical potential is an intensive property

4+ Write shorthand notation for the cell for each of the folloing

reactions

a) u2H aC) H 2gs) H 2r L u s) H 2gr s)

) n2H aC) is oxidi=ed y r2 l)

4 rrange the folloing reducing agents in order of increasing

strength under standard state conditions 0he standard potentialsfor the reduction half reactions are given

gH aC) 7M)lt l3H aC) 1M)lt 62g) 2+M)lt l2g) 13M)lt

(2s) 7$4M)lt d2H aC) 74M)

45 rrange the folloing oxidi=ing agents in order of increasing

strength under standard state conditions 0he standard potentials

for the reduction half reactions are given

ls) 1M)lt l aC) 13M)lt us) 734M)lt 6es)744M)lt r

aC) 175M)lt is) 72M)

$7 Which species in each of the folloing pairs is etter oxidi=ing

agent under standard state conditions standard potential are

given) Give reasons for your anser

8112019 Chemistry Question 12sci (1)

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a) r2l) 175M) or u3H 14M)

) H aC) or gH aC) 7M)

c) -2H aC) 713M) or o2H 72M)

d) l2 g) 13M) or r3H 7+4M)

$1 Which species in each of the folloing pairs is etter reducing

agent under standard conditions E7 values are given Give

reasons for your anser

a) Fs) 2353M) or ampgs) 23M)

) o2H aC) 11M) or (n s) 714M)

c) e3H aC) 11M) or 0i2H73+M)

d) gl) 7M) or is) 723M)

PROBLEMS

1 conductivity cell lled ith 771amp Fl given at 2$o the

resistance of 74ohms 0he conductivity of Fl at 2$

o

is 7777

CHEMISTRY

d f O DF EEampE0

1) What are dloc8 elements

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2) What are floc8 elements

3) Explain the meaning of

i) 0ransition series ii) (nner transition element

4) Explain the position of the folloing in periodic tale

i) dloc8 elements ii) anthanoids iii) ctinoids

$) Explain the oxidation state of 1st ro elements of transition

series

) Explain the oxidation states of lanthanoids and actinoids

+) Why do lanthanoids form coloured compounds ) Explainlt most of the transition metal compounds are

remar8aly coloured

5) Why chromium has electronic conguration 3d$ 4s1 and not 3d4

4s2

17) Why does copper sho anormal electronic conguration

11) Explainlt the trends in atomic and ionic si=es of lanthanoidsand also of 1st ro elements of transition series

12) What are actinoids

13) What are transuranic elements Write their name

14) Why transition elements sho tendency to form large numer

of complexes

1$) Explain the compounds of copper ((() are coloured ut thoseof =inc are colourless

1) o is potassium dichromate prepared from chrome ion

1+) Write the preparationlt properties and use of potassium

permanganate

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1) Explainlt hy -t(M) complexes are generally octahedral hile

-t(() complexes are sCuare planar

15) ierentiate eteen lanthanoids and actinoids

27) What are chemical tins Give examples

21) Explain hy Gd3H is colourless

COORDINATION COMPOUNDS

1) What is the dierence eteen doule salt and coordinationcompounds

2) Explainlt hy 6e4)2 D4)22D) is a salt ut F 4P6e)Q is a

complex compound

3) Write the formula of the folloing complexes

i) alcium hexa cyano ferrate (()

ii) iammine dichloro platinum

iii) is ethylene diammine) dichloro iridium ((() ion

iv) -entamine caronato chromium ((() D(E

v) 0risethylene diammine ) coalt((() sulphate

vi) iamine ethylene diammine nic8el (() acetate

4) Write the rules hich are applied hile riting the formulas of

coordination compounds

$) ene the terms

i) entral metal atomgtion

ii) igand

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iii) oordination compound

iv) oordination sphere

v) oordination numer

vi) oordination polyhedral

vii) omoleptic and heteroleptic complexes

viii) harge on the complexes

ix) oordination entity

) Write (- name of the folloing complexes

i) Pr2D)4 l2QD3

ii) P-ten)l4Q

iii) F 2Pi)4Q

iv) sP6el4Q

v) rl3-y)3

vi) F 3Po2D4)3Q

vii) Por2en)2Q

viii) P-tl4Q2

ix) Po2D))en)2Q2H

x) F 3Pl2D4)3Q

+) Explain the importance of principles of additive nomenclature

) (dentify the folloing ions y a simple test forming complex

compound

i) u2H ii) i2H iii) 6e3H iv) o2H

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5) Dn the asis of WernerBs theory explainlt hy coalt amine

complexlt ol343 hen treated ith gD3 solution

precipitates only one ion even though there are three ions

17) alculate the eective atomic numer E) of the centralmetal atom in the folloing compounds

i) F 3P6e)Q ii) rD)

11) Write the postulates of WernerBs theory

12) Explain the onding in ol333 and ol3$3

13) Explain stereoisomerism in metal complexes ith coordination

numer 4 and 14) Why the tetrahedral complexes do not exhiit geometrical

isomerism

1$) ra cis and trans geometrical isomers of

i) dichlororomo iodo palladium (() ion

ii) P-t(()3)2l2Q

iii) Po((()3)l3Q

iv) Po((()3)42D)lQ2H

1) ra all possile geometrical isomers of P-t(M)

3)2-y)2l2Q2H ion

1+) Write oxidation statelt coordination numer and electronic

conguration of the metal atom in the folloing complexes

i) rl3-y)3 ii) F 4Pampn)Q

1) lassify the folloing ligands into monodentatelt polydentate

and amidentate

i) 3 ii) iii) iv) v) D2 vi) ethylene diammine

vii) oxalate

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viii) triaminotriethylamine

15) ol3$32D is a pin8 solidlt the solution of this salt is also

pin8 and formed 3mol of gl ith silver nitrate solution Dn

heating pin8 solidlt it loses one ater molecule and forms purplesolid having same ratio of o3l as that of pin8 solid 0he

purple solid hen dissolved in ater and treated ith forms 1 mol

of gl ra the structure and name of the pin8 and purple

solids

27) ame the octahedral complex ions

i) Po2D4) en)2QH ii) transPr)4 3)2Q

21) ra the structures of the folloing complexes

i) Pol4Q2 ii) Pampn3)Q2H iii) P-tlQ iv) iD)4 v) Pi)4Q2

22) (n an octahedral crystal eldlt dra the gure to sho splitting

of dorital

23) What are ea8 eld and strong eld ligands What is spectro

chemical series

24) Pi)4Q2 is diamagnetic hile Pr3)Q3H is paramagnetltexplain

2$) Dn the asis of valence ond theory explain the nature of

onding in the folloing complexes

i) Po6Q3 ii) Po2D4)3Q3

2) lue coloured copper sulphate solution gave folloing

experimental results Explain the same

i) With aCueous potassium chloride it gave right green solution

ii) With aCueous potassium Juoride it gave a green precipitate

2+) ra the structures of optically active isomers of Poen)3Q3H

8112019 Chemistry Question 12sci (1)

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2) ra the geometrical and optical isomers of

i) Pol2en)2QH ii) Polen)23)Q2H

25) What is lin8age isomerism Explain ith an example

37) What are hydrate isomers Explain ith examples

31) Explain the structure of

i) upraammonium sulphate ii) Po3)Q3H

32) What are the limitations of valence ond theory

33) Explain the magnetic properties of coordination compounds

34) Write the salient features of crystal eld theory What are itslimitations

3$) Explain the octahedral geometry of complexes using crystal

eld theory

3) Write a note on colours in coordination compounds

3+) Explain the factors aecting the staility of coordination

compound3) Write rief the applications of coordination compounds

HALOGEN DERIVATIVES O ALANES AND ARENES

1) What are al8yl halides o are they classied

2) Write (- names of the folloing compounds

i)

ii) 2Al

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iii)

iv)

v)

vi) secutyl chloride

vii) neopentyl romide

viii) tutyl iodide

ix) isopropyl romide

3) o is ethyl romide prepared from

i) Ethyl alcohol ii) ethane iii) ethane

4)Write the preparation of isopropyl chloride using the folloing

reagents

i) -l3 ii) -l$ iii) l2 iv) l v) Dl2

$) o is group replaced y folloing functional rroups

i) OD ii) O iii) O iv) O2

) Write a note on

i) andmeyerBs reaction ii) Wurt= reaction iii) 6in8elstein reaction

iv) 6ittig reaction v) 6riedel raft reaction

+) (dentify and in the folloing

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) Give the structures of the folloing compounds

i) 3romo2methyl pentane ii) 2romo3ethyl hexane iii) 1

holo utane

iv) pichloroen=ene v) 1lt1lt10richloroethane

5) student has performed an experiment in the laoratory e

mixed ater ith hexane and found to layers separated econd

time he mixed chloroform ith ater and he again found to

layers in the test tue Explain hich ill e upper layer and

hich one ill e loer layer in oth the experiments

17) onvert 1hloroutane into the folloing compounds

i) utane1ol ii) 1(odoutane iii) 3222 iv)

11) 6or each pair of compoundslt state hich compound is etter

2 sustrate

i) 2romoutanelt isopropyl romide ii) 1(odo2lt2dimethyl

propane or isopropyl iodide

12) hoose the memer that ill react faster from the folloing

pairs y 1 mechanism

13) -redict the expected product of sustitution reaction

i) isoutyl chloride mH sodium ethoxide

ii) nutyl chloride H sodium

iii) 1hloro propane H aC potassium hydroxide

iv) aniline H aD2gt l

14) Write the products

i) $22A2 H r L

ii) $A2 H r

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iii)

iv)

v)

1$) (dentify the chiral and achiral molecules

i)

ii)

iii)

1) iscuss 2 mechanism of methyl romide using aCueous

FD ra energy prole diagram1+) Write the mechanism of the reaction hen tutyl chloride is

treated ith aCueous FD ith energy prole diagram

1) ierentiate eteen 1 and 2 mechanism

15) Explain the nature of ond in

i) 322 ii)

27) What are uses of

i) 0 ii) (odoform iii) hloroform iv) aron tetrachloride

21) l8yl halides are polar and miscile ith aterlt explain

22) Which one of the folloing is more easily hydrolysed y

aCueous FD

$l$ and $2l

23) rrange the folloing groups in descending order 2lt D3lt

D3lt DD and l

24) ssign or conguration to each of the folloing

structures

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i)

ii)

iii)

iv)

DDlt -ED E0E

1) What are alcohols o are they classied

2) What are monohydric alcohols o are they classied

4) Write the structures of folloing alcohols

i) 1Ethylcyclohexanol ii) ex3en2ol iii)yclohex2en1ol

iv) -entane1lt4diol

v) 2lt4imethylhexane1lt3lt$triol

$) Explain the folloing

i) -ropan1ol has higher oiling point than nutane

ii) ampethanol is more solule in ater than -ropan1ol

) Write the mechanism of hydration of ethylene to ethyl alcohol

+) -ropan1ol can not e prepared y acid catalyst hydration of

propenelt then ho is propene converted into propan1ol

)5) o is propanone converted into

i) -ropan2ol ii) 2ampethyl propan2ol

17) o ill you otain utan2ol from

8112019 Chemistry Question 12sci (1)

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i) -ropanal ii) utan2one iii) ut2ene

11) o is propan1ol prepared from

i) -ropanal ii) -ropanoic acid

12) o is cyclopentanol prepared from

i) yclopentanone ii) yclopentene

14) Write the mechanism of acid catalysed dehydration of ethanol

to give ethane

1$) Write the structure of aldehyde lt caroxylic acid and ester

that yield folloing alcohol

1+) o ill you prepare

i) 2ampethylutane1ol from an al8ene

ii) cyclohexylmethanol from a Grignard reagent

iii) 1phenylethanol from acetaldehyde

1) o are folloing conversions rought aout

i) en=yl chloride to en=yl alcohol

ii) en=yl alcohol to en=oic acid

iii) 1Ethylcyclohexanol from yclohexanone

15) What are phenols o are they classied

27)21) Give the structures and (- names of isomeric phenols

represented y the molecular formula 17D

22) o is phenol prepared from

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i) hloroen=ene ii) (sopropyl en=ene iii) en=ene sulphonic

acid iv) aniline

23 ) Explain the folloing

i) -henol is more acidic than phenol

ii) onitrophenol is more acidic than ocresol

iii) pnitrophenol is less volatile than onitrophenol

24) Explain the folloing reactions of phenol

i) FoleBs reaction ii) iemer0iemann reaction

2$) ame the reagents used to convert phenol intoi) picric acid ii) 2lt4lt0riromophenol iii) en=ene iv) ophenol

sulphonic acid

2) What is the action of folloing reagents on phenol i)

romine in 2 at lo temperature

ii) ilute nitric acid at room temperature iii) oncentrated

sulphuric acid at room temperature

2+) Give distinguish test eteen phenol and ethanol

2) What are ethers o are ethers classied

25) What is metamerism Give the structure and (- name of

metamers of 2ampethoxypropane

37) Write the mechanism for acidic dehydration of ethanol

31) o is diethyl ether prepared y continuous ethericationprocess Why is the process so called

32) o ill you prepared methoxyethane from

i) l8yl halide ii) ia=omethane

33) tate the important uses of i) -henol ii) diethyl ether

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34) Write the mechanism of action of hydrogen romide on tert

utyl methyl ether

3$) Explain the folloing reactions of anisole

i) romination ii) itration iii) 6riedelrafts al8ylation iv)6riedelrafts acylation

3) Explainlt i) 0he OD group attached to aromatic ring in

phenols and ii) 0he al8oxy group in al8yl aryl ethers are ortholt

para directing and activate the aromatic ring toars electrophilic

sustitution

3+) Write the chemical eCuations for Williamson synthesis of 2

Ethoxy2methypentane starting from ethanol and 2ampethylpentan2ol

3) n organic compound ith the formula 417D3 shos

properties of ether and alcohol hen treated ith an excess of

r yields only one compound 1lt2 diromomethane Write

structural formula of ether and that of alcohol

ALDEHYDES ETONES AND CABO$YLIC

ACID

1) Write the structure and give (- names of the folloing

compounds

i) chloropropionaldehyde

ii) Rhydroxyutyraldehyde

iii) isoutyraldehyde

iv) Rmethylvaleraldehyde

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v) isopropyl methyl 8etone

vi) diisopropyl 8etone

vii) mromoen=aldehyde

viii) dien=yl 8etone

ix) divinyl 8etone

x) allyl methyl 8etone

xi) ethyl phenyl 8etone

xii) nutyrophenone

2) Write the structure of folloing compounds

i) 4ampethyl3nitroen=ophenone ii) 2ampethyl4oxopentanal iii)

3Dxopentanoic acid iv) 4chloropropiophenone v) 3

ampethoxyutanal vi) 4ydroxycyclohaxane caraldehyde

3) o ill you prepare i) propiophenone from propanenitrile ii)

4chloroen=aldehyde from 4chlorotoluene iii)

yclohaxanecaraldehyde from cyclohexylmethanol iv) 4

methoxyacetophenone from anisole v) 4methylen=aldehydefrom toluene

4) rrange the folloing compounds in the increasing order of

their oiling points

i) dimethyl etherlt ethyl alcohollt propanelt acetaldehyde

ii) acetonelt npropyl alcohollt ethyl methyl alcohol and nutane

$) What is the action of hydrogen cyanide in asic medium on i)utanone ii) 2lt4dichloroen=aldehyde

) What is the action of folloing compounds on cyclohexanone in

presence of dry hydrogen chloride

i) ethyl alcohol ii) ethylene glycol

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+) Write the structure of product in the folloing reactions

i) 322D3

ii) $2D3

) Write the structures of caronyl compounds and ammonia

derivatives that comine to give folloing imines

i)

ii)

iii)

iv)v)

vi)

5) Write the chemical eCuations for aldol condensation or

anni==aro reaction that folloing compounds undergo

i) -ropanal ii) 2ampethylpropanal iii) -entanal iv) 3

ampethylutanal v) cetophenonevi) pampethoxyen=aldehyde vii) 2ampethylcyclohaxanone viii)

chloral ix) yclopentanone

x) -henyl acetaldehyde xi) 1-henylpropan1one

17) Write the structure of the maKor product of the folloing

crossed aldol condensation

i) formaldehyde and propionaldehydeii) en=aldehyde ith acetone

11) (dentify the compounds SBlt SB and SB in the folloing

reactions and rerite the complete eCuations

i)

8112019 Chemistry Question 12sci (1)

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ii)

12)o ill you eect folloing tostep conversions

i) -ropanal into utanone ii) utanone into ut2ene iii)

en=ene into mromoacetophenone iv) ex3yne into exan

3one v) en=oic acid into mnitroen=ylalcohol

13) o ill you convert en=aldehyde into folloing compounds

ampore than one steps may e reCuired

i) en=ophenone ii) en=oic acid iii) 3-henylpropan1ol iv)hydroxyphenylacetic acid

14) Give a chemical test to distinguish eteen folloing pairs of

compounds

i) Ethanal and propanone ii) -rpopanal and propanone iii)

-entane2one and pentane3one

1$) Write the structure and (- names of folloing caroxylicacids

i) ltRdimethylutanoic acid ii) Rphenylutyric acid iii) 1038389

chloromethylvaleric acid

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c) 2$Dl) or 2$Dg)

d) $ moles of e or 2 moles of e

43) What are the signs of for the folloing reaction

Explain ith reasons

2g) 2g)

44) erive the relationship eteen G and total

4$) Iustify the inclusion of Crev and 0 in the denition of entropylt

A Crevgt 0

4) 0he increase in entropy of a system alone does not guarantee

the spontaneity of a process Explain

4+) 0he criterion of spontaneity in terms of Gis energy is the

same as that laid don y second la of thermodynamic o

PROBLEMS

1) 0hree moles of an ideal gas are expanded isothermally from a

volume of 377cm3 to 2$ at 377F against a pressure of 15atm

alculate the or8 done in atm and Koules2) Dne mole of an ideal gas is compressed from $77cm3 against a

constant pressure of 121 17$-a 0he or8 involved in the

process is 3$7I alculate the nal volume

3) alculate the maximum or8 hen 24g of oxygen are

expanded isothermally and reversily from a pressure of 1

17$-a to 1778-a at 25F

4) 0hree moles of an ideal gas are compressed isothermally andreversily to a volume of 2 0he or8 done is 2538I at 22

alculate the initial volume of a gas

8112019 Chemistry Question 12sci (1)

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$) 2 172 8g of nitrogen is expanded isothermally and

reversily at 377F from 1$1$ 17$ m 2 hen the or8 done is

found to e 1+338 I 6ind the nal pressure

) sample of a gas asors 47778I of heata) if volume remains constantlt hat is

) uppose that in addition to asorption of heat y the samplelt

the surrounding does 27778I of or8 on the samplelt hat is

c) uppose that as the original sample asors heatlt it expands

against atmospheric pressure and does 778 I of or8 on its

surroundings What is

+) alculate the or8 done in each of the folloing reactions

tate hether or8 is done on or y the system

a) 0he oxidation of one mole of D2 at $7

2D2g) H D2g) 2D3g)

) decomposition of 2 moles of 4D3 at 177

4D3s) 2Dg) H 22Dg)

) 0he enthalpy change for the reaction

24g) H 2g) 2g) is 27I hen 177m of ethylene and

177m of 2 react at 1atm pressure alculate the pressure

volume or8 and

5) alculate standard enthalpy of the reaction

6e2D3s) H 3Dg) 26es) H 3D2g) from the folloing data

f 76e2D3)A2428Imol1ltf 7D)A117$8Imol1lt

f 7D2)A353$8Imol1

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8112019 Chemistry Question 12sci (1)

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Electro chemitry

Theory

1ene the terms resistivitylt conductivity and molar

conductivity Give its ( units

2Explain the terms conductivity and molar conductivity o are

they interrelated

3Why does conductivity of s solution decrease on dilution of a

solution

4o does molar conductivity of an electrolyte vary ith

concentration

$o does the variation in molar conductivity of an electrolyte

ith concentration diers for strong and ea8 electrolytes

Explain the dierent ehaviour of strong and ea8 electrolytes

toards the variation of conductivity ith concentration

+tate and explain Fohlrausch la of independent migration of

ions o it is useful to determine the molar conductivity of ea8

electrolytes at =ero concentration

o is the molar conductivity of strong electrolytes at =ero

concentration determined y graphical method Why is this

method not useful for ea8 electrolytes

5What is cell constant What is its unit o is it determined

17ene anode and cathode

11 Why is cathode in electrolytic cell considered to e negative

and anode positive

12 -redict the half cell reactions that occur hen fused Fl is

electroly=ed in a cell ith inert electrodes What is the overall cell

reaction

8112019 Chemistry Question 12sci (1)

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13 tate 6aradayBs las of electrolysis

14o ill you calculate the numer of moles of electrons

actually passed and mass of the sustance produced during

electrolysis of a salt solution using reaction stoichiometry1$o many electrons ill have a total charge of 1 coulom

1 o many faradayBs ould e reCuired to plate out 177 mole

of free metal from the folloing cations

a) ampg2H

) r3H

c) -2H

d) uH

1+ ene coulom and faraday

1 escrie the electrolysis of molten al using inert

electrodes

15 What is the dierence eteen electrolytic cell and voltaic

cell

27 Why is anode in galvanic cell considered to e negative and

cathode positive electrode

21 8etch the cell for the electrolysis of molten al (ndicate

cathodelt anode and their signs ho the Jo of electrons and

ions

22 What is salt ridge What are its functions in galvanic cell

23 What are the conventions used to rite cell diagramcell

formula)

24 escrie the construction of aniel cell Write electrode half

reactions and net cell reaction in aniel cell

8112019 Chemistry Question 12sci (1)

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2$ escrie the folloing types of electrodes giving one

examplelt ith reference to formulationlt electrode reaction and

ernst eCuation for electrode potential

a) metalsparingly salt electrode) gas electrode

2 What is redox electrode Give one example ith formulationlt

electrode reaction and ernst eCuation for electrode potential

2+ ene the terms oxidation potentiallt reduction potential and

cell potential

2 What conditions are reCuired for a cell potential to e calledstandard cell potential

25 6ormulate a cell for each of the folloing electrode reactions

a) n2H aC) H 2gl s) L n4H aC) H 2gs) H2l aC)

) ampg s) H r2l) L ampg2H aC) H 2r aC)

37 6ormulate a cell from the folloing electrode reactions

a) l2g) H 2e L 2l aC)

) 2( aC) L (2s) H 2e

31 What are standard electrode potential and standard emf of

the galvanic cell

32 Write ernst eCuation and explain the terms involved in it

What part of the eCuation represents the correction factor for

nonstandard state conditions

33 Write ernst eCuation for the folloing reactions

a) rs) H 36e3H aC) L r3H aC) H 36e2H aC)

) l3H aC) H 3e L l s)

8112019 Chemistry Question 12sci (1)

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34 onsider the folloing E7 values and half reactions

(2s) H 2e L 2( aC) E7A7$3$M

u2H aC) H 2e L u s) E7A733+M

d2H aC) H 2e L ds) E7A77473

a) Which of the metals or nonmetals or ions is the strongest

oxidi=ing agent and hich is the strongest reducing agent

) 0he half reactions can e used to construct three galvanic

cells Which ill have the highest cell potential

3$ -redict hether

a) gH can oxidi=e - to -2H under standard state condition

) E7gA7+55M and E7

-A712M

3 -redict hether the folloing reactions occur under standard

state conditions

a) Dxidation of gs) y l2g) E7gA7Mlt E7

l2A13M

) eduction of 6e

3H

to 6e

2H

y us) E

7

6e3Hlt 6e2H A 7++MltE7uA14M

3+ 8etch and descrie the operation of

a) dry cell

) 2D2 fuel cell

3 What are the advantages and disadvantages of fuel cells

35 8etch lead storage cell

47 Write electrode reaction and overall cell reaction during the

operation of lead storage cell

41 Write electrode reaction and overall cell reaction hen lead

accumulator ehaves as an electrolytic cell

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42 o can ernst eCuation e used to sho that electrode

potential is eCual to the standard electrode potential y putting

approximate values in ernst eCuation se u2HNd half cell for

illustration

43 o are G7lt E7cell and eCuilirium constant related for a

particular reaction

44 Why is eCuilirium constant related to E7cell and not Ecell

4$ G7 for a redox reaction depends on the numer of electrons

transferred Explain

4 o does the eCuiliriumlt G7An6E7 explain that an

electrical potential is an intensive property

4+ Write shorthand notation for the cell for each of the folloing

reactions

a) u2H aC) H 2gs) H 2r L u s) H 2gr s)

) n2H aC) is oxidi=ed y r2 l)

4 rrange the folloing reducing agents in order of increasing

strength under standard state conditions 0he standard potentialsfor the reduction half reactions are given

gH aC) 7M)lt l3H aC) 1M)lt 62g) 2+M)lt l2g) 13M)lt

(2s) 7$4M)lt d2H aC) 74M)

45 rrange the folloing oxidi=ing agents in order of increasing

strength under standard state conditions 0he standard potentials

for the reduction half reactions are given

ls) 1M)lt l aC) 13M)lt us) 734M)lt 6es)744M)lt r

aC) 175M)lt is) 72M)

$7 Which species in each of the folloing pairs is etter oxidi=ing

agent under standard state conditions standard potential are

given) Give reasons for your anser

8112019 Chemistry Question 12sci (1)

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a) r2l) 175M) or u3H 14M)

) H aC) or gH aC) 7M)

c) -2H aC) 713M) or o2H 72M)

d) l2 g) 13M) or r3H 7+4M)

$1 Which species in each of the folloing pairs is etter reducing

agent under standard conditions E7 values are given Give

reasons for your anser

a) Fs) 2353M) or ampgs) 23M)

) o2H aC) 11M) or (n s) 714M)

c) e3H aC) 11M) or 0i2H73+M)

d) gl) 7M) or is) 723M)

PROBLEMS

1 conductivity cell lled ith 771amp Fl given at 2$o the

resistance of 74ohms 0he conductivity of Fl at 2$

o

is 7777

CHEMISTRY

d f O DF EEampE0

1) What are dloc8 elements

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2) What are floc8 elements

3) Explain the meaning of

i) 0ransition series ii) (nner transition element

4) Explain the position of the folloing in periodic tale

i) dloc8 elements ii) anthanoids iii) ctinoids

$) Explain the oxidation state of 1st ro elements of transition

series

) Explain the oxidation states of lanthanoids and actinoids

+) Why do lanthanoids form coloured compounds ) Explainlt most of the transition metal compounds are

remar8aly coloured

5) Why chromium has electronic conguration 3d$ 4s1 and not 3d4

4s2

17) Why does copper sho anormal electronic conguration

11) Explainlt the trends in atomic and ionic si=es of lanthanoidsand also of 1st ro elements of transition series

12) What are actinoids

13) What are transuranic elements Write their name

14) Why transition elements sho tendency to form large numer

of complexes

1$) Explain the compounds of copper ((() are coloured ut thoseof =inc are colourless

1) o is potassium dichromate prepared from chrome ion

1+) Write the preparationlt properties and use of potassium

permanganate

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1) Explainlt hy -t(M) complexes are generally octahedral hile

-t(() complexes are sCuare planar

15) ierentiate eteen lanthanoids and actinoids

27) What are chemical tins Give examples

21) Explain hy Gd3H is colourless

COORDINATION COMPOUNDS

1) What is the dierence eteen doule salt and coordinationcompounds

2) Explainlt hy 6e4)2 D4)22D) is a salt ut F 4P6e)Q is a

complex compound

3) Write the formula of the folloing complexes

i) alcium hexa cyano ferrate (()

ii) iammine dichloro platinum

iii) is ethylene diammine) dichloro iridium ((() ion

iv) -entamine caronato chromium ((() D(E

v) 0risethylene diammine ) coalt((() sulphate

vi) iamine ethylene diammine nic8el (() acetate

4) Write the rules hich are applied hile riting the formulas of

coordination compounds

$) ene the terms

i) entral metal atomgtion

ii) igand

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iii) oordination compound

iv) oordination sphere

v) oordination numer

vi) oordination polyhedral

vii) omoleptic and heteroleptic complexes

viii) harge on the complexes

ix) oordination entity

) Write (- name of the folloing complexes

i) Pr2D)4 l2QD3

ii) P-ten)l4Q

iii) F 2Pi)4Q

iv) sP6el4Q

v) rl3-y)3

vi) F 3Po2D4)3Q

vii) Por2en)2Q

viii) P-tl4Q2

ix) Po2D))en)2Q2H

x) F 3Pl2D4)3Q

+) Explain the importance of principles of additive nomenclature

) (dentify the folloing ions y a simple test forming complex

compound

i) u2H ii) i2H iii) 6e3H iv) o2H

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5) Dn the asis of WernerBs theory explainlt hy coalt amine

complexlt ol343 hen treated ith gD3 solution

precipitates only one ion even though there are three ions

17) alculate the eective atomic numer E) of the centralmetal atom in the folloing compounds

i) F 3P6e)Q ii) rD)

11) Write the postulates of WernerBs theory

12) Explain the onding in ol333 and ol3$3

13) Explain stereoisomerism in metal complexes ith coordination

numer 4 and 14) Why the tetrahedral complexes do not exhiit geometrical

isomerism

1$) ra cis and trans geometrical isomers of

i) dichlororomo iodo palladium (() ion

ii) P-t(()3)2l2Q

iii) Po((()3)l3Q

iv) Po((()3)42D)lQ2H

1) ra all possile geometrical isomers of P-t(M)

3)2-y)2l2Q2H ion

1+) Write oxidation statelt coordination numer and electronic

conguration of the metal atom in the folloing complexes

i) rl3-y)3 ii) F 4Pampn)Q

1) lassify the folloing ligands into monodentatelt polydentate

and amidentate

i) 3 ii) iii) iv) v) D2 vi) ethylene diammine

vii) oxalate

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viii) triaminotriethylamine

15) ol3$32D is a pin8 solidlt the solution of this salt is also

pin8 and formed 3mol of gl ith silver nitrate solution Dn

heating pin8 solidlt it loses one ater molecule and forms purplesolid having same ratio of o3l as that of pin8 solid 0he

purple solid hen dissolved in ater and treated ith forms 1 mol

of gl ra the structure and name of the pin8 and purple

solids

27) ame the octahedral complex ions

i) Po2D4) en)2QH ii) transPr)4 3)2Q

21) ra the structures of the folloing complexes

i) Pol4Q2 ii) Pampn3)Q2H iii) P-tlQ iv) iD)4 v) Pi)4Q2

22) (n an octahedral crystal eldlt dra the gure to sho splitting

of dorital

23) What are ea8 eld and strong eld ligands What is spectro

chemical series

24) Pi)4Q2 is diamagnetic hile Pr3)Q3H is paramagnetltexplain

2$) Dn the asis of valence ond theory explain the nature of

onding in the folloing complexes

i) Po6Q3 ii) Po2D4)3Q3

2) lue coloured copper sulphate solution gave folloing

experimental results Explain the same

i) With aCueous potassium chloride it gave right green solution

ii) With aCueous potassium Juoride it gave a green precipitate

2+) ra the structures of optically active isomers of Poen)3Q3H

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2) ra the geometrical and optical isomers of

i) Pol2en)2QH ii) Polen)23)Q2H

25) What is lin8age isomerism Explain ith an example

37) What are hydrate isomers Explain ith examples

31) Explain the structure of

i) upraammonium sulphate ii) Po3)Q3H

32) What are the limitations of valence ond theory

33) Explain the magnetic properties of coordination compounds

34) Write the salient features of crystal eld theory What are itslimitations

3$) Explain the octahedral geometry of complexes using crystal

eld theory

3) Write a note on colours in coordination compounds

3+) Explain the factors aecting the staility of coordination

compound3) Write rief the applications of coordination compounds

HALOGEN DERIVATIVES O ALANES AND ARENES

1) What are al8yl halides o are they classied

2) Write (- names of the folloing compounds

i)

ii) 2Al

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iii)

iv)

v)

vi) secutyl chloride

vii) neopentyl romide

viii) tutyl iodide

ix) isopropyl romide

3) o is ethyl romide prepared from

i) Ethyl alcohol ii) ethane iii) ethane

4)Write the preparation of isopropyl chloride using the folloing

reagents

i) -l3 ii) -l$ iii) l2 iv) l v) Dl2

$) o is group replaced y folloing functional rroups

i) OD ii) O iii) O iv) O2

) Write a note on

i) andmeyerBs reaction ii) Wurt= reaction iii) 6in8elstein reaction

iv) 6ittig reaction v) 6riedel raft reaction

+) (dentify and in the folloing

8112019 Chemistry Question 12sci (1)

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) Give the structures of the folloing compounds

i) 3romo2methyl pentane ii) 2romo3ethyl hexane iii) 1

holo utane

iv) pichloroen=ene v) 1lt1lt10richloroethane

5) student has performed an experiment in the laoratory e

mixed ater ith hexane and found to layers separated econd

time he mixed chloroform ith ater and he again found to

layers in the test tue Explain hich ill e upper layer and

hich one ill e loer layer in oth the experiments

17) onvert 1hloroutane into the folloing compounds

i) utane1ol ii) 1(odoutane iii) 3222 iv)

11) 6or each pair of compoundslt state hich compound is etter

2 sustrate

i) 2romoutanelt isopropyl romide ii) 1(odo2lt2dimethyl

propane or isopropyl iodide

12) hoose the memer that ill react faster from the folloing

pairs y 1 mechanism

13) -redict the expected product of sustitution reaction

i) isoutyl chloride mH sodium ethoxide

ii) nutyl chloride H sodium

iii) 1hloro propane H aC potassium hydroxide

iv) aniline H aD2gt l

14) Write the products

i) $22A2 H r L

ii) $A2 H r

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iii)

iv)

v)

1$) (dentify the chiral and achiral molecules

i)

ii)

iii)

1) iscuss 2 mechanism of methyl romide using aCueous

FD ra energy prole diagram1+) Write the mechanism of the reaction hen tutyl chloride is

treated ith aCueous FD ith energy prole diagram

1) ierentiate eteen 1 and 2 mechanism

15) Explain the nature of ond in

i) 322 ii)

27) What are uses of

i) 0 ii) (odoform iii) hloroform iv) aron tetrachloride

21) l8yl halides are polar and miscile ith aterlt explain

22) Which one of the folloing is more easily hydrolysed y

aCueous FD

$l$ and $2l

23) rrange the folloing groups in descending order 2lt D3lt

D3lt DD and l

24) ssign or conguration to each of the folloing

structures

8112019 Chemistry Question 12sci (1)

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i)

ii)

iii)

iv)

DDlt -ED E0E

1) What are alcohols o are they classied

2) What are monohydric alcohols o are they classied

4) Write the structures of folloing alcohols

i) 1Ethylcyclohexanol ii) ex3en2ol iii)yclohex2en1ol

iv) -entane1lt4diol

v) 2lt4imethylhexane1lt3lt$triol

$) Explain the folloing

i) -ropan1ol has higher oiling point than nutane

ii) ampethanol is more solule in ater than -ropan1ol

) Write the mechanism of hydration of ethylene to ethyl alcohol

+) -ropan1ol can not e prepared y acid catalyst hydration of

propenelt then ho is propene converted into propan1ol

)5) o is propanone converted into

i) -ropan2ol ii) 2ampethyl propan2ol

17) o ill you otain utan2ol from

8112019 Chemistry Question 12sci (1)

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i) -ropanal ii) utan2one iii) ut2ene

11) o is propan1ol prepared from

i) -ropanal ii) -ropanoic acid

12) o is cyclopentanol prepared from

i) yclopentanone ii) yclopentene

14) Write the mechanism of acid catalysed dehydration of ethanol

to give ethane

1$) Write the structure of aldehyde lt caroxylic acid and ester

that yield folloing alcohol

1+) o ill you prepare

i) 2ampethylutane1ol from an al8ene

ii) cyclohexylmethanol from a Grignard reagent

iii) 1phenylethanol from acetaldehyde

1) o are folloing conversions rought aout

i) en=yl chloride to en=yl alcohol

ii) en=yl alcohol to en=oic acid

iii) 1Ethylcyclohexanol from yclohexanone

15) What are phenols o are they classied

27)21) Give the structures and (- names of isomeric phenols

represented y the molecular formula 17D

22) o is phenol prepared from

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i) hloroen=ene ii) (sopropyl en=ene iii) en=ene sulphonic

acid iv) aniline

23 ) Explain the folloing

i) -henol is more acidic than phenol

ii) onitrophenol is more acidic than ocresol

iii) pnitrophenol is less volatile than onitrophenol

24) Explain the folloing reactions of phenol

i) FoleBs reaction ii) iemer0iemann reaction

2$) ame the reagents used to convert phenol intoi) picric acid ii) 2lt4lt0riromophenol iii) en=ene iv) ophenol

sulphonic acid

2) What is the action of folloing reagents on phenol i)

romine in 2 at lo temperature

ii) ilute nitric acid at room temperature iii) oncentrated

sulphuric acid at room temperature

2+) Give distinguish test eteen phenol and ethanol

2) What are ethers o are ethers classied

25) What is metamerism Give the structure and (- name of

metamers of 2ampethoxypropane

37) Write the mechanism for acidic dehydration of ethanol

31) o is diethyl ether prepared y continuous ethericationprocess Why is the process so called

32) o ill you prepared methoxyethane from

i) l8yl halide ii) ia=omethane

33) tate the important uses of i) -henol ii) diethyl ether

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34) Write the mechanism of action of hydrogen romide on tert

utyl methyl ether

3$) Explain the folloing reactions of anisole

i) romination ii) itration iii) 6riedelrafts al8ylation iv)6riedelrafts acylation

3) Explainlt i) 0he OD group attached to aromatic ring in

phenols and ii) 0he al8oxy group in al8yl aryl ethers are ortholt

para directing and activate the aromatic ring toars electrophilic

sustitution

3+) Write the chemical eCuations for Williamson synthesis of 2

Ethoxy2methypentane starting from ethanol and 2ampethylpentan2ol

3) n organic compound ith the formula 417D3 shos

properties of ether and alcohol hen treated ith an excess of

r yields only one compound 1lt2 diromomethane Write

structural formula of ether and that of alcohol

ALDEHYDES ETONES AND CABO$YLIC

ACID

1) Write the structure and give (- names of the folloing

compounds

i) chloropropionaldehyde

ii) Rhydroxyutyraldehyde

iii) isoutyraldehyde

iv) Rmethylvaleraldehyde

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v) isopropyl methyl 8etone

vi) diisopropyl 8etone

vii) mromoen=aldehyde

viii) dien=yl 8etone

ix) divinyl 8etone

x) allyl methyl 8etone

xi) ethyl phenyl 8etone

xii) nutyrophenone

2) Write the structure of folloing compounds

i) 4ampethyl3nitroen=ophenone ii) 2ampethyl4oxopentanal iii)

3Dxopentanoic acid iv) 4chloropropiophenone v) 3

ampethoxyutanal vi) 4ydroxycyclohaxane caraldehyde

3) o ill you prepare i) propiophenone from propanenitrile ii)

4chloroen=aldehyde from 4chlorotoluene iii)

yclohaxanecaraldehyde from cyclohexylmethanol iv) 4

methoxyacetophenone from anisole v) 4methylen=aldehydefrom toluene

4) rrange the folloing compounds in the increasing order of

their oiling points

i) dimethyl etherlt ethyl alcohollt propanelt acetaldehyde

ii) acetonelt npropyl alcohollt ethyl methyl alcohol and nutane

$) What is the action of hydrogen cyanide in asic medium on i)utanone ii) 2lt4dichloroen=aldehyde

) What is the action of folloing compounds on cyclohexanone in

presence of dry hydrogen chloride

i) ethyl alcohol ii) ethylene glycol

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+) Write the structure of product in the folloing reactions

i) 322D3

ii) $2D3

) Write the structures of caronyl compounds and ammonia

derivatives that comine to give folloing imines

i)

ii)

iii)

iv)v)

vi)

5) Write the chemical eCuations for aldol condensation or

anni==aro reaction that folloing compounds undergo

i) -ropanal ii) 2ampethylpropanal iii) -entanal iv) 3

ampethylutanal v) cetophenonevi) pampethoxyen=aldehyde vii) 2ampethylcyclohaxanone viii)

chloral ix) yclopentanone

x) -henyl acetaldehyde xi) 1-henylpropan1one

17) Write the structure of the maKor product of the folloing

crossed aldol condensation

i) formaldehyde and propionaldehydeii) en=aldehyde ith acetone

11) (dentify the compounds SBlt SB and SB in the folloing

reactions and rerite the complete eCuations

i)

8112019 Chemistry Question 12sci (1)

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ii)

12)o ill you eect folloing tostep conversions

i) -ropanal into utanone ii) utanone into ut2ene iii)

en=ene into mromoacetophenone iv) ex3yne into exan

3one v) en=oic acid into mnitroen=ylalcohol

13) o ill you convert en=aldehyde into folloing compounds

ampore than one steps may e reCuired

i) en=ophenone ii) en=oic acid iii) 3-henylpropan1ol iv)hydroxyphenylacetic acid

14) Give a chemical test to distinguish eteen folloing pairs of

compounds

i) Ethanal and propanone ii) -rpopanal and propanone iii)

-entane2one and pentane3one

1$) Write the structure and (- names of folloing caroxylicacids

i) ltRdimethylutanoic acid ii) Rphenylutyric acid iii) 1038389

chloromethylvaleric acid

Page 15: Chemistry Question 12sci (1)

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$) 2 172 8g of nitrogen is expanded isothermally and

reversily at 377F from 1$1$ 17$ m 2 hen the or8 done is

found to e 1+338 I 6ind the nal pressure

) sample of a gas asors 47778I of heata) if volume remains constantlt hat is

) uppose that in addition to asorption of heat y the samplelt

the surrounding does 27778I of or8 on the samplelt hat is

c) uppose that as the original sample asors heatlt it expands

against atmospheric pressure and does 778 I of or8 on its

surroundings What is

+) alculate the or8 done in each of the folloing reactions

tate hether or8 is done on or y the system

a) 0he oxidation of one mole of D2 at $7

2D2g) H D2g) 2D3g)

) decomposition of 2 moles of 4D3 at 177

4D3s) 2Dg) H 22Dg)

) 0he enthalpy change for the reaction

24g) H 2g) 2g) is 27I hen 177m of ethylene and

177m of 2 react at 1atm pressure alculate the pressure

volume or8 and

5) alculate standard enthalpy of the reaction

6e2D3s) H 3Dg) 26es) H 3D2g) from the folloing data

f 76e2D3)A2428Imol1ltf 7D)A117$8Imol1lt

f 7D2)A353$8Imol1

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8112019 Chemistry Question 12sci (1)

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Electro chemitry

Theory

1ene the terms resistivitylt conductivity and molar

conductivity Give its ( units

2Explain the terms conductivity and molar conductivity o are

they interrelated

3Why does conductivity of s solution decrease on dilution of a

solution

4o does molar conductivity of an electrolyte vary ith

concentration

$o does the variation in molar conductivity of an electrolyte

ith concentration diers for strong and ea8 electrolytes

Explain the dierent ehaviour of strong and ea8 electrolytes

toards the variation of conductivity ith concentration

+tate and explain Fohlrausch la of independent migration of

ions o it is useful to determine the molar conductivity of ea8

electrolytes at =ero concentration

o is the molar conductivity of strong electrolytes at =ero

concentration determined y graphical method Why is this

method not useful for ea8 electrolytes

5What is cell constant What is its unit o is it determined

17ene anode and cathode

11 Why is cathode in electrolytic cell considered to e negative

and anode positive

12 -redict the half cell reactions that occur hen fused Fl is

electroly=ed in a cell ith inert electrodes What is the overall cell

reaction

8112019 Chemistry Question 12sci (1)

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13 tate 6aradayBs las of electrolysis

14o ill you calculate the numer of moles of electrons

actually passed and mass of the sustance produced during

electrolysis of a salt solution using reaction stoichiometry1$o many electrons ill have a total charge of 1 coulom

1 o many faradayBs ould e reCuired to plate out 177 mole

of free metal from the folloing cations

a) ampg2H

) r3H

c) -2H

d) uH

1+ ene coulom and faraday

1 escrie the electrolysis of molten al using inert

electrodes

15 What is the dierence eteen electrolytic cell and voltaic

cell

27 Why is anode in galvanic cell considered to e negative and

cathode positive electrode

21 8etch the cell for the electrolysis of molten al (ndicate

cathodelt anode and their signs ho the Jo of electrons and

ions

22 What is salt ridge What are its functions in galvanic cell

23 What are the conventions used to rite cell diagramcell

formula)

24 escrie the construction of aniel cell Write electrode half

reactions and net cell reaction in aniel cell

8112019 Chemistry Question 12sci (1)

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2$ escrie the folloing types of electrodes giving one

examplelt ith reference to formulationlt electrode reaction and

ernst eCuation for electrode potential

a) metalsparingly salt electrode) gas electrode

2 What is redox electrode Give one example ith formulationlt

electrode reaction and ernst eCuation for electrode potential

2+ ene the terms oxidation potentiallt reduction potential and

cell potential

2 What conditions are reCuired for a cell potential to e calledstandard cell potential

25 6ormulate a cell for each of the folloing electrode reactions

a) n2H aC) H 2gl s) L n4H aC) H 2gs) H2l aC)

) ampg s) H r2l) L ampg2H aC) H 2r aC)

37 6ormulate a cell from the folloing electrode reactions

a) l2g) H 2e L 2l aC)

) 2( aC) L (2s) H 2e

31 What are standard electrode potential and standard emf of

the galvanic cell

32 Write ernst eCuation and explain the terms involved in it

What part of the eCuation represents the correction factor for

nonstandard state conditions

33 Write ernst eCuation for the folloing reactions

a) rs) H 36e3H aC) L r3H aC) H 36e2H aC)

) l3H aC) H 3e L l s)

8112019 Chemistry Question 12sci (1)

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34 onsider the folloing E7 values and half reactions

(2s) H 2e L 2( aC) E7A7$3$M

u2H aC) H 2e L u s) E7A733+M

d2H aC) H 2e L ds) E7A77473

a) Which of the metals or nonmetals or ions is the strongest

oxidi=ing agent and hich is the strongest reducing agent

) 0he half reactions can e used to construct three galvanic

cells Which ill have the highest cell potential

3$ -redict hether

a) gH can oxidi=e - to -2H under standard state condition

) E7gA7+55M and E7

-A712M

3 -redict hether the folloing reactions occur under standard

state conditions

a) Dxidation of gs) y l2g) E7gA7Mlt E7

l2A13M

) eduction of 6e

3H

to 6e

2H

y us) E

7

6e3Hlt 6e2H A 7++MltE7uA14M

3+ 8etch and descrie the operation of

a) dry cell

) 2D2 fuel cell

3 What are the advantages and disadvantages of fuel cells

35 8etch lead storage cell

47 Write electrode reaction and overall cell reaction during the

operation of lead storage cell

41 Write electrode reaction and overall cell reaction hen lead

accumulator ehaves as an electrolytic cell

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42 o can ernst eCuation e used to sho that electrode

potential is eCual to the standard electrode potential y putting

approximate values in ernst eCuation se u2HNd half cell for

illustration

43 o are G7lt E7cell and eCuilirium constant related for a

particular reaction

44 Why is eCuilirium constant related to E7cell and not Ecell

4$ G7 for a redox reaction depends on the numer of electrons

transferred Explain

4 o does the eCuiliriumlt G7An6E7 explain that an

electrical potential is an intensive property

4+ Write shorthand notation for the cell for each of the folloing

reactions

a) u2H aC) H 2gs) H 2r L u s) H 2gr s)

) n2H aC) is oxidi=ed y r2 l)

4 rrange the folloing reducing agents in order of increasing

strength under standard state conditions 0he standard potentialsfor the reduction half reactions are given

gH aC) 7M)lt l3H aC) 1M)lt 62g) 2+M)lt l2g) 13M)lt

(2s) 7$4M)lt d2H aC) 74M)

45 rrange the folloing oxidi=ing agents in order of increasing

strength under standard state conditions 0he standard potentials

for the reduction half reactions are given

ls) 1M)lt l aC) 13M)lt us) 734M)lt 6es)744M)lt r

aC) 175M)lt is) 72M)

$7 Which species in each of the folloing pairs is etter oxidi=ing

agent under standard state conditions standard potential are

given) Give reasons for your anser

8112019 Chemistry Question 12sci (1)

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a) r2l) 175M) or u3H 14M)

) H aC) or gH aC) 7M)

c) -2H aC) 713M) or o2H 72M)

d) l2 g) 13M) or r3H 7+4M)

$1 Which species in each of the folloing pairs is etter reducing

agent under standard conditions E7 values are given Give

reasons for your anser

a) Fs) 2353M) or ampgs) 23M)

) o2H aC) 11M) or (n s) 714M)

c) e3H aC) 11M) or 0i2H73+M)

d) gl) 7M) or is) 723M)

PROBLEMS

1 conductivity cell lled ith 771amp Fl given at 2$o the

resistance of 74ohms 0he conductivity of Fl at 2$

o

is 7777

CHEMISTRY

d f O DF EEampE0

1) What are dloc8 elements

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2) What are floc8 elements

3) Explain the meaning of

i) 0ransition series ii) (nner transition element

4) Explain the position of the folloing in periodic tale

i) dloc8 elements ii) anthanoids iii) ctinoids

$) Explain the oxidation state of 1st ro elements of transition

series

) Explain the oxidation states of lanthanoids and actinoids

+) Why do lanthanoids form coloured compounds ) Explainlt most of the transition metal compounds are

remar8aly coloured

5) Why chromium has electronic conguration 3d$ 4s1 and not 3d4

4s2

17) Why does copper sho anormal electronic conguration

11) Explainlt the trends in atomic and ionic si=es of lanthanoidsand also of 1st ro elements of transition series

12) What are actinoids

13) What are transuranic elements Write their name

14) Why transition elements sho tendency to form large numer

of complexes

1$) Explain the compounds of copper ((() are coloured ut thoseof =inc are colourless

1) o is potassium dichromate prepared from chrome ion

1+) Write the preparationlt properties and use of potassium

permanganate

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1) Explainlt hy -t(M) complexes are generally octahedral hile

-t(() complexes are sCuare planar

15) ierentiate eteen lanthanoids and actinoids

27) What are chemical tins Give examples

21) Explain hy Gd3H is colourless

COORDINATION COMPOUNDS

1) What is the dierence eteen doule salt and coordinationcompounds

2) Explainlt hy 6e4)2 D4)22D) is a salt ut F 4P6e)Q is a

complex compound

3) Write the formula of the folloing complexes

i) alcium hexa cyano ferrate (()

ii) iammine dichloro platinum

iii) is ethylene diammine) dichloro iridium ((() ion

iv) -entamine caronato chromium ((() D(E

v) 0risethylene diammine ) coalt((() sulphate

vi) iamine ethylene diammine nic8el (() acetate

4) Write the rules hich are applied hile riting the formulas of

coordination compounds

$) ene the terms

i) entral metal atomgtion

ii) igand

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iii) oordination compound

iv) oordination sphere

v) oordination numer

vi) oordination polyhedral

vii) omoleptic and heteroleptic complexes

viii) harge on the complexes

ix) oordination entity

) Write (- name of the folloing complexes

i) Pr2D)4 l2QD3

ii) P-ten)l4Q

iii) F 2Pi)4Q

iv) sP6el4Q

v) rl3-y)3

vi) F 3Po2D4)3Q

vii) Por2en)2Q

viii) P-tl4Q2

ix) Po2D))en)2Q2H

x) F 3Pl2D4)3Q

+) Explain the importance of principles of additive nomenclature

) (dentify the folloing ions y a simple test forming complex

compound

i) u2H ii) i2H iii) 6e3H iv) o2H

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5) Dn the asis of WernerBs theory explainlt hy coalt amine

complexlt ol343 hen treated ith gD3 solution

precipitates only one ion even though there are three ions

17) alculate the eective atomic numer E) of the centralmetal atom in the folloing compounds

i) F 3P6e)Q ii) rD)

11) Write the postulates of WernerBs theory

12) Explain the onding in ol333 and ol3$3

13) Explain stereoisomerism in metal complexes ith coordination

numer 4 and 14) Why the tetrahedral complexes do not exhiit geometrical

isomerism

1$) ra cis and trans geometrical isomers of

i) dichlororomo iodo palladium (() ion

ii) P-t(()3)2l2Q

iii) Po((()3)l3Q

iv) Po((()3)42D)lQ2H

1) ra all possile geometrical isomers of P-t(M)

3)2-y)2l2Q2H ion

1+) Write oxidation statelt coordination numer and electronic

conguration of the metal atom in the folloing complexes

i) rl3-y)3 ii) F 4Pampn)Q

1) lassify the folloing ligands into monodentatelt polydentate

and amidentate

i) 3 ii) iii) iv) v) D2 vi) ethylene diammine

vii) oxalate

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viii) triaminotriethylamine

15) ol3$32D is a pin8 solidlt the solution of this salt is also

pin8 and formed 3mol of gl ith silver nitrate solution Dn

heating pin8 solidlt it loses one ater molecule and forms purplesolid having same ratio of o3l as that of pin8 solid 0he

purple solid hen dissolved in ater and treated ith forms 1 mol

of gl ra the structure and name of the pin8 and purple

solids

27) ame the octahedral complex ions

i) Po2D4) en)2QH ii) transPr)4 3)2Q

21) ra the structures of the folloing complexes

i) Pol4Q2 ii) Pampn3)Q2H iii) P-tlQ iv) iD)4 v) Pi)4Q2

22) (n an octahedral crystal eldlt dra the gure to sho splitting

of dorital

23) What are ea8 eld and strong eld ligands What is spectro

chemical series

24) Pi)4Q2 is diamagnetic hile Pr3)Q3H is paramagnetltexplain

2$) Dn the asis of valence ond theory explain the nature of

onding in the folloing complexes

i) Po6Q3 ii) Po2D4)3Q3

2) lue coloured copper sulphate solution gave folloing

experimental results Explain the same

i) With aCueous potassium chloride it gave right green solution

ii) With aCueous potassium Juoride it gave a green precipitate

2+) ra the structures of optically active isomers of Poen)3Q3H

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2) ra the geometrical and optical isomers of

i) Pol2en)2QH ii) Polen)23)Q2H

25) What is lin8age isomerism Explain ith an example

37) What are hydrate isomers Explain ith examples

31) Explain the structure of

i) upraammonium sulphate ii) Po3)Q3H

32) What are the limitations of valence ond theory

33) Explain the magnetic properties of coordination compounds

34) Write the salient features of crystal eld theory What are itslimitations

3$) Explain the octahedral geometry of complexes using crystal

eld theory

3) Write a note on colours in coordination compounds

3+) Explain the factors aecting the staility of coordination

compound3) Write rief the applications of coordination compounds

HALOGEN DERIVATIVES O ALANES AND ARENES

1) What are al8yl halides o are they classied

2) Write (- names of the folloing compounds

i)

ii) 2Al

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iii)

iv)

v)

vi) secutyl chloride

vii) neopentyl romide

viii) tutyl iodide

ix) isopropyl romide

3) o is ethyl romide prepared from

i) Ethyl alcohol ii) ethane iii) ethane

4)Write the preparation of isopropyl chloride using the folloing

reagents

i) -l3 ii) -l$ iii) l2 iv) l v) Dl2

$) o is group replaced y folloing functional rroups

i) OD ii) O iii) O iv) O2

) Write a note on

i) andmeyerBs reaction ii) Wurt= reaction iii) 6in8elstein reaction

iv) 6ittig reaction v) 6riedel raft reaction

+) (dentify and in the folloing

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) Give the structures of the folloing compounds

i) 3romo2methyl pentane ii) 2romo3ethyl hexane iii) 1

holo utane

iv) pichloroen=ene v) 1lt1lt10richloroethane

5) student has performed an experiment in the laoratory e

mixed ater ith hexane and found to layers separated econd

time he mixed chloroform ith ater and he again found to

layers in the test tue Explain hich ill e upper layer and

hich one ill e loer layer in oth the experiments

17) onvert 1hloroutane into the folloing compounds

i) utane1ol ii) 1(odoutane iii) 3222 iv)

11) 6or each pair of compoundslt state hich compound is etter

2 sustrate

i) 2romoutanelt isopropyl romide ii) 1(odo2lt2dimethyl

propane or isopropyl iodide

12) hoose the memer that ill react faster from the folloing

pairs y 1 mechanism

13) -redict the expected product of sustitution reaction

i) isoutyl chloride mH sodium ethoxide

ii) nutyl chloride H sodium

iii) 1hloro propane H aC potassium hydroxide

iv) aniline H aD2gt l

14) Write the products

i) $22A2 H r L

ii) $A2 H r

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iii)

iv)

v)

1$) (dentify the chiral and achiral molecules

i)

ii)

iii)

1) iscuss 2 mechanism of methyl romide using aCueous

FD ra energy prole diagram1+) Write the mechanism of the reaction hen tutyl chloride is

treated ith aCueous FD ith energy prole diagram

1) ierentiate eteen 1 and 2 mechanism

15) Explain the nature of ond in

i) 322 ii)

27) What are uses of

i) 0 ii) (odoform iii) hloroform iv) aron tetrachloride

21) l8yl halides are polar and miscile ith aterlt explain

22) Which one of the folloing is more easily hydrolysed y

aCueous FD

$l$ and $2l

23) rrange the folloing groups in descending order 2lt D3lt

D3lt DD and l

24) ssign or conguration to each of the folloing

structures

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i)

ii)

iii)

iv)

DDlt -ED E0E

1) What are alcohols o are they classied

2) What are monohydric alcohols o are they classied

4) Write the structures of folloing alcohols

i) 1Ethylcyclohexanol ii) ex3en2ol iii)yclohex2en1ol

iv) -entane1lt4diol

v) 2lt4imethylhexane1lt3lt$triol

$) Explain the folloing

i) -ropan1ol has higher oiling point than nutane

ii) ampethanol is more solule in ater than -ropan1ol

) Write the mechanism of hydration of ethylene to ethyl alcohol

+) -ropan1ol can not e prepared y acid catalyst hydration of

propenelt then ho is propene converted into propan1ol

)5) o is propanone converted into

i) -ropan2ol ii) 2ampethyl propan2ol

17) o ill you otain utan2ol from

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i) -ropanal ii) utan2one iii) ut2ene

11) o is propan1ol prepared from

i) -ropanal ii) -ropanoic acid

12) o is cyclopentanol prepared from

i) yclopentanone ii) yclopentene

14) Write the mechanism of acid catalysed dehydration of ethanol

to give ethane

1$) Write the structure of aldehyde lt caroxylic acid and ester

that yield folloing alcohol

1+) o ill you prepare

i) 2ampethylutane1ol from an al8ene

ii) cyclohexylmethanol from a Grignard reagent

iii) 1phenylethanol from acetaldehyde

1) o are folloing conversions rought aout

i) en=yl chloride to en=yl alcohol

ii) en=yl alcohol to en=oic acid

iii) 1Ethylcyclohexanol from yclohexanone

15) What are phenols o are they classied

27)21) Give the structures and (- names of isomeric phenols

represented y the molecular formula 17D

22) o is phenol prepared from

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i) hloroen=ene ii) (sopropyl en=ene iii) en=ene sulphonic

acid iv) aniline

23 ) Explain the folloing

i) -henol is more acidic than phenol

ii) onitrophenol is more acidic than ocresol

iii) pnitrophenol is less volatile than onitrophenol

24) Explain the folloing reactions of phenol

i) FoleBs reaction ii) iemer0iemann reaction

2$) ame the reagents used to convert phenol intoi) picric acid ii) 2lt4lt0riromophenol iii) en=ene iv) ophenol

sulphonic acid

2) What is the action of folloing reagents on phenol i)

romine in 2 at lo temperature

ii) ilute nitric acid at room temperature iii) oncentrated

sulphuric acid at room temperature

2+) Give distinguish test eteen phenol and ethanol

2) What are ethers o are ethers classied

25) What is metamerism Give the structure and (- name of

metamers of 2ampethoxypropane

37) Write the mechanism for acidic dehydration of ethanol

31) o is diethyl ether prepared y continuous ethericationprocess Why is the process so called

32) o ill you prepared methoxyethane from

i) l8yl halide ii) ia=omethane

33) tate the important uses of i) -henol ii) diethyl ether

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34) Write the mechanism of action of hydrogen romide on tert

utyl methyl ether

3$) Explain the folloing reactions of anisole

i) romination ii) itration iii) 6riedelrafts al8ylation iv)6riedelrafts acylation

3) Explainlt i) 0he OD group attached to aromatic ring in

phenols and ii) 0he al8oxy group in al8yl aryl ethers are ortholt

para directing and activate the aromatic ring toars electrophilic

sustitution

3+) Write the chemical eCuations for Williamson synthesis of 2

Ethoxy2methypentane starting from ethanol and 2ampethylpentan2ol

3) n organic compound ith the formula 417D3 shos

properties of ether and alcohol hen treated ith an excess of

r yields only one compound 1lt2 diromomethane Write

structural formula of ether and that of alcohol

ALDEHYDES ETONES AND CABO$YLIC

ACID

1) Write the structure and give (- names of the folloing

compounds

i) chloropropionaldehyde

ii) Rhydroxyutyraldehyde

iii) isoutyraldehyde

iv) Rmethylvaleraldehyde

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v) isopropyl methyl 8etone

vi) diisopropyl 8etone

vii) mromoen=aldehyde

viii) dien=yl 8etone

ix) divinyl 8etone

x) allyl methyl 8etone

xi) ethyl phenyl 8etone

xii) nutyrophenone

2) Write the structure of folloing compounds

i) 4ampethyl3nitroen=ophenone ii) 2ampethyl4oxopentanal iii)

3Dxopentanoic acid iv) 4chloropropiophenone v) 3

ampethoxyutanal vi) 4ydroxycyclohaxane caraldehyde

3) o ill you prepare i) propiophenone from propanenitrile ii)

4chloroen=aldehyde from 4chlorotoluene iii)

yclohaxanecaraldehyde from cyclohexylmethanol iv) 4

methoxyacetophenone from anisole v) 4methylen=aldehydefrom toluene

4) rrange the folloing compounds in the increasing order of

their oiling points

i) dimethyl etherlt ethyl alcohollt propanelt acetaldehyde

ii) acetonelt npropyl alcohollt ethyl methyl alcohol and nutane

$) What is the action of hydrogen cyanide in asic medium on i)utanone ii) 2lt4dichloroen=aldehyde

) What is the action of folloing compounds on cyclohexanone in

presence of dry hydrogen chloride

i) ethyl alcohol ii) ethylene glycol

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+) Write the structure of product in the folloing reactions

i) 322D3

ii) $2D3

) Write the structures of caronyl compounds and ammonia

derivatives that comine to give folloing imines

i)

ii)

iii)

iv)v)

vi)

5) Write the chemical eCuations for aldol condensation or

anni==aro reaction that folloing compounds undergo

i) -ropanal ii) 2ampethylpropanal iii) -entanal iv) 3

ampethylutanal v) cetophenonevi) pampethoxyen=aldehyde vii) 2ampethylcyclohaxanone viii)

chloral ix) yclopentanone

x) -henyl acetaldehyde xi) 1-henylpropan1one

17) Write the structure of the maKor product of the folloing

crossed aldol condensation

i) formaldehyde and propionaldehydeii) en=aldehyde ith acetone

11) (dentify the compounds SBlt SB and SB in the folloing

reactions and rerite the complete eCuations

i)

8112019 Chemistry Question 12sci (1)

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ii)

12)o ill you eect folloing tostep conversions

i) -ropanal into utanone ii) utanone into ut2ene iii)

en=ene into mromoacetophenone iv) ex3yne into exan

3one v) en=oic acid into mnitroen=ylalcohol

13) o ill you convert en=aldehyde into folloing compounds

ampore than one steps may e reCuired

i) en=ophenone ii) en=oic acid iii) 3-henylpropan1ol iv)hydroxyphenylacetic acid

14) Give a chemical test to distinguish eteen folloing pairs of

compounds

i) Ethanal and propanone ii) -rpopanal and propanone iii)

-entane2one and pentane3one

1$) Write the structure and (- names of folloing caroxylicacids

i) ltRdimethylutanoic acid ii) Rphenylutyric acid iii) 1038389

chloromethylvaleric acid

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Electro chemitry

Theory

1ene the terms resistivitylt conductivity and molar

conductivity Give its ( units

2Explain the terms conductivity and molar conductivity o are

they interrelated

3Why does conductivity of s solution decrease on dilution of a

solution

4o does molar conductivity of an electrolyte vary ith

concentration

$o does the variation in molar conductivity of an electrolyte

ith concentration diers for strong and ea8 electrolytes

Explain the dierent ehaviour of strong and ea8 electrolytes

toards the variation of conductivity ith concentration

+tate and explain Fohlrausch la of independent migration of

ions o it is useful to determine the molar conductivity of ea8

electrolytes at =ero concentration

o is the molar conductivity of strong electrolytes at =ero

concentration determined y graphical method Why is this

method not useful for ea8 electrolytes

5What is cell constant What is its unit o is it determined

17ene anode and cathode

11 Why is cathode in electrolytic cell considered to e negative

and anode positive

12 -redict the half cell reactions that occur hen fused Fl is

electroly=ed in a cell ith inert electrodes What is the overall cell

reaction

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13 tate 6aradayBs las of electrolysis

14o ill you calculate the numer of moles of electrons

actually passed and mass of the sustance produced during

electrolysis of a salt solution using reaction stoichiometry1$o many electrons ill have a total charge of 1 coulom

1 o many faradayBs ould e reCuired to plate out 177 mole

of free metal from the folloing cations

a) ampg2H

) r3H

c) -2H

d) uH

1+ ene coulom and faraday

1 escrie the electrolysis of molten al using inert

electrodes

15 What is the dierence eteen electrolytic cell and voltaic

cell

27 Why is anode in galvanic cell considered to e negative and

cathode positive electrode

21 8etch the cell for the electrolysis of molten al (ndicate

cathodelt anode and their signs ho the Jo of electrons and

ions

22 What is salt ridge What are its functions in galvanic cell

23 What are the conventions used to rite cell diagramcell

formula)

24 escrie the construction of aniel cell Write electrode half

reactions and net cell reaction in aniel cell

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2$ escrie the folloing types of electrodes giving one

examplelt ith reference to formulationlt electrode reaction and

ernst eCuation for electrode potential

a) metalsparingly salt electrode) gas electrode

2 What is redox electrode Give one example ith formulationlt

electrode reaction and ernst eCuation for electrode potential

2+ ene the terms oxidation potentiallt reduction potential and

cell potential

2 What conditions are reCuired for a cell potential to e calledstandard cell potential

25 6ormulate a cell for each of the folloing electrode reactions

a) n2H aC) H 2gl s) L n4H aC) H 2gs) H2l aC)

) ampg s) H r2l) L ampg2H aC) H 2r aC)

37 6ormulate a cell from the folloing electrode reactions

a) l2g) H 2e L 2l aC)

) 2( aC) L (2s) H 2e

31 What are standard electrode potential and standard emf of

the galvanic cell

32 Write ernst eCuation and explain the terms involved in it

What part of the eCuation represents the correction factor for

nonstandard state conditions

33 Write ernst eCuation for the folloing reactions

a) rs) H 36e3H aC) L r3H aC) H 36e2H aC)

) l3H aC) H 3e L l s)

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34 onsider the folloing E7 values and half reactions

(2s) H 2e L 2( aC) E7A7$3$M

u2H aC) H 2e L u s) E7A733+M

d2H aC) H 2e L ds) E7A77473

a) Which of the metals or nonmetals or ions is the strongest

oxidi=ing agent and hich is the strongest reducing agent

) 0he half reactions can e used to construct three galvanic

cells Which ill have the highest cell potential

3$ -redict hether

a) gH can oxidi=e - to -2H under standard state condition

) E7gA7+55M and E7

-A712M

3 -redict hether the folloing reactions occur under standard

state conditions

a) Dxidation of gs) y l2g) E7gA7Mlt E7

l2A13M

) eduction of 6e

3H

to 6e

2H

y us) E

7

6e3Hlt 6e2H A 7++MltE7uA14M

3+ 8etch and descrie the operation of

a) dry cell

) 2D2 fuel cell

3 What are the advantages and disadvantages of fuel cells

35 8etch lead storage cell

47 Write electrode reaction and overall cell reaction during the

operation of lead storage cell

41 Write electrode reaction and overall cell reaction hen lead

accumulator ehaves as an electrolytic cell

8112019 Chemistry Question 12sci (1)

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42 o can ernst eCuation e used to sho that electrode

potential is eCual to the standard electrode potential y putting

approximate values in ernst eCuation se u2HNd half cell for

illustration

43 o are G7lt E7cell and eCuilirium constant related for a

particular reaction

44 Why is eCuilirium constant related to E7cell and not Ecell

4$ G7 for a redox reaction depends on the numer of electrons

transferred Explain

4 o does the eCuiliriumlt G7An6E7 explain that an

electrical potential is an intensive property

4+ Write shorthand notation for the cell for each of the folloing

reactions

a) u2H aC) H 2gs) H 2r L u s) H 2gr s)

) n2H aC) is oxidi=ed y r2 l)

4 rrange the folloing reducing agents in order of increasing

strength under standard state conditions 0he standard potentialsfor the reduction half reactions are given

gH aC) 7M)lt l3H aC) 1M)lt 62g) 2+M)lt l2g) 13M)lt

(2s) 7$4M)lt d2H aC) 74M)

45 rrange the folloing oxidi=ing agents in order of increasing

strength under standard state conditions 0he standard potentials

for the reduction half reactions are given

ls) 1M)lt l aC) 13M)lt us) 734M)lt 6es)744M)lt r

aC) 175M)lt is) 72M)

$7 Which species in each of the folloing pairs is etter oxidi=ing

agent under standard state conditions standard potential are

given) Give reasons for your anser

8112019 Chemistry Question 12sci (1)

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a) r2l) 175M) or u3H 14M)

) H aC) or gH aC) 7M)

c) -2H aC) 713M) or o2H 72M)

d) l2 g) 13M) or r3H 7+4M)

$1 Which species in each of the folloing pairs is etter reducing

agent under standard conditions E7 values are given Give

reasons for your anser

a) Fs) 2353M) or ampgs) 23M)

) o2H aC) 11M) or (n s) 714M)

c) e3H aC) 11M) or 0i2H73+M)

d) gl) 7M) or is) 723M)

PROBLEMS

1 conductivity cell lled ith 771amp Fl given at 2$o the

resistance of 74ohms 0he conductivity of Fl at 2$

o

is 7777

CHEMISTRY

d f O DF EEampE0

1) What are dloc8 elements

8112019 Chemistry Question 12sci (1)

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2) What are floc8 elements

3) Explain the meaning of

i) 0ransition series ii) (nner transition element

4) Explain the position of the folloing in periodic tale

i) dloc8 elements ii) anthanoids iii) ctinoids

$) Explain the oxidation state of 1st ro elements of transition

series

) Explain the oxidation states of lanthanoids and actinoids

+) Why do lanthanoids form coloured compounds ) Explainlt most of the transition metal compounds are

remar8aly coloured

5) Why chromium has electronic conguration 3d$ 4s1 and not 3d4

4s2

17) Why does copper sho anormal electronic conguration

11) Explainlt the trends in atomic and ionic si=es of lanthanoidsand also of 1st ro elements of transition series

12) What are actinoids

13) What are transuranic elements Write their name

14) Why transition elements sho tendency to form large numer

of complexes

1$) Explain the compounds of copper ((() are coloured ut thoseof =inc are colourless

1) o is potassium dichromate prepared from chrome ion

1+) Write the preparationlt properties and use of potassium

permanganate

8112019 Chemistry Question 12sci (1)

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1) Explainlt hy -t(M) complexes are generally octahedral hile

-t(() complexes are sCuare planar

15) ierentiate eteen lanthanoids and actinoids

27) What are chemical tins Give examples

21) Explain hy Gd3H is colourless

COORDINATION COMPOUNDS

1) What is the dierence eteen doule salt and coordinationcompounds

2) Explainlt hy 6e4)2 D4)22D) is a salt ut F 4P6e)Q is a

complex compound

3) Write the formula of the folloing complexes

i) alcium hexa cyano ferrate (()

ii) iammine dichloro platinum

iii) is ethylene diammine) dichloro iridium ((() ion

iv) -entamine caronato chromium ((() D(E

v) 0risethylene diammine ) coalt((() sulphate

vi) iamine ethylene diammine nic8el (() acetate

4) Write the rules hich are applied hile riting the formulas of

coordination compounds

$) ene the terms

i) entral metal atomgtion

ii) igand

8112019 Chemistry Question 12sci (1)

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iii) oordination compound

iv) oordination sphere

v) oordination numer

vi) oordination polyhedral

vii) omoleptic and heteroleptic complexes

viii) harge on the complexes

ix) oordination entity

) Write (- name of the folloing complexes

i) Pr2D)4 l2QD3

ii) P-ten)l4Q

iii) F 2Pi)4Q

iv) sP6el4Q

v) rl3-y)3

vi) F 3Po2D4)3Q

vii) Por2en)2Q

viii) P-tl4Q2

ix) Po2D))en)2Q2H

x) F 3Pl2D4)3Q

+) Explain the importance of principles of additive nomenclature

) (dentify the folloing ions y a simple test forming complex

compound

i) u2H ii) i2H iii) 6e3H iv) o2H

8112019 Chemistry Question 12sci (1)

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5) Dn the asis of WernerBs theory explainlt hy coalt amine

complexlt ol343 hen treated ith gD3 solution

precipitates only one ion even though there are three ions

17) alculate the eective atomic numer E) of the centralmetal atom in the folloing compounds

i) F 3P6e)Q ii) rD)

11) Write the postulates of WernerBs theory

12) Explain the onding in ol333 and ol3$3

13) Explain stereoisomerism in metal complexes ith coordination

numer 4 and 14) Why the tetrahedral complexes do not exhiit geometrical

isomerism

1$) ra cis and trans geometrical isomers of

i) dichlororomo iodo palladium (() ion

ii) P-t(()3)2l2Q

iii) Po((()3)l3Q

iv) Po((()3)42D)lQ2H

1) ra all possile geometrical isomers of P-t(M)

3)2-y)2l2Q2H ion

1+) Write oxidation statelt coordination numer and electronic

conguration of the metal atom in the folloing complexes

i) rl3-y)3 ii) F 4Pampn)Q

1) lassify the folloing ligands into monodentatelt polydentate

and amidentate

i) 3 ii) iii) iv) v) D2 vi) ethylene diammine

vii) oxalate

8112019 Chemistry Question 12sci (1)

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viii) triaminotriethylamine

15) ol3$32D is a pin8 solidlt the solution of this salt is also

pin8 and formed 3mol of gl ith silver nitrate solution Dn

heating pin8 solidlt it loses one ater molecule and forms purplesolid having same ratio of o3l as that of pin8 solid 0he

purple solid hen dissolved in ater and treated ith forms 1 mol

of gl ra the structure and name of the pin8 and purple

solids

27) ame the octahedral complex ions

i) Po2D4) en)2QH ii) transPr)4 3)2Q

21) ra the structures of the folloing complexes

i) Pol4Q2 ii) Pampn3)Q2H iii) P-tlQ iv) iD)4 v) Pi)4Q2

22) (n an octahedral crystal eldlt dra the gure to sho splitting

of dorital

23) What are ea8 eld and strong eld ligands What is spectro

chemical series

24) Pi)4Q2 is diamagnetic hile Pr3)Q3H is paramagnetltexplain

2$) Dn the asis of valence ond theory explain the nature of

onding in the folloing complexes

i) Po6Q3 ii) Po2D4)3Q3

2) lue coloured copper sulphate solution gave folloing

experimental results Explain the same

i) With aCueous potassium chloride it gave right green solution

ii) With aCueous potassium Juoride it gave a green precipitate

2+) ra the structures of optically active isomers of Poen)3Q3H

8112019 Chemistry Question 12sci (1)

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2) ra the geometrical and optical isomers of

i) Pol2en)2QH ii) Polen)23)Q2H

25) What is lin8age isomerism Explain ith an example

37) What are hydrate isomers Explain ith examples

31) Explain the structure of

i) upraammonium sulphate ii) Po3)Q3H

32) What are the limitations of valence ond theory

33) Explain the magnetic properties of coordination compounds

34) Write the salient features of crystal eld theory What are itslimitations

3$) Explain the octahedral geometry of complexes using crystal

eld theory

3) Write a note on colours in coordination compounds

3+) Explain the factors aecting the staility of coordination

compound3) Write rief the applications of coordination compounds

HALOGEN DERIVATIVES O ALANES AND ARENES

1) What are al8yl halides o are they classied

2) Write (- names of the folloing compounds

i)

ii) 2Al

8112019 Chemistry Question 12sci (1)

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iii)

iv)

v)

vi) secutyl chloride

vii) neopentyl romide

viii) tutyl iodide

ix) isopropyl romide

3) o is ethyl romide prepared from

i) Ethyl alcohol ii) ethane iii) ethane

4)Write the preparation of isopropyl chloride using the folloing

reagents

i) -l3 ii) -l$ iii) l2 iv) l v) Dl2

$) o is group replaced y folloing functional rroups

i) OD ii) O iii) O iv) O2

) Write a note on

i) andmeyerBs reaction ii) Wurt= reaction iii) 6in8elstein reaction

iv) 6ittig reaction v) 6riedel raft reaction

+) (dentify and in the folloing

8112019 Chemistry Question 12sci (1)

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) Give the structures of the folloing compounds

i) 3romo2methyl pentane ii) 2romo3ethyl hexane iii) 1

holo utane

iv) pichloroen=ene v) 1lt1lt10richloroethane

5) student has performed an experiment in the laoratory e

mixed ater ith hexane and found to layers separated econd

time he mixed chloroform ith ater and he again found to

layers in the test tue Explain hich ill e upper layer and

hich one ill e loer layer in oth the experiments

17) onvert 1hloroutane into the folloing compounds

i) utane1ol ii) 1(odoutane iii) 3222 iv)

11) 6or each pair of compoundslt state hich compound is etter

2 sustrate

i) 2romoutanelt isopropyl romide ii) 1(odo2lt2dimethyl

propane or isopropyl iodide

12) hoose the memer that ill react faster from the folloing

pairs y 1 mechanism

13) -redict the expected product of sustitution reaction

i) isoutyl chloride mH sodium ethoxide

ii) nutyl chloride H sodium

iii) 1hloro propane H aC potassium hydroxide

iv) aniline H aD2gt l

14) Write the products

i) $22A2 H r L

ii) $A2 H r

8112019 Chemistry Question 12sci (1)

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iii)

iv)

v)

1$) (dentify the chiral and achiral molecules

i)

ii)

iii)

1) iscuss 2 mechanism of methyl romide using aCueous

FD ra energy prole diagram1+) Write the mechanism of the reaction hen tutyl chloride is

treated ith aCueous FD ith energy prole diagram

1) ierentiate eteen 1 and 2 mechanism

15) Explain the nature of ond in

i) 322 ii)

27) What are uses of

i) 0 ii) (odoform iii) hloroform iv) aron tetrachloride

21) l8yl halides are polar and miscile ith aterlt explain

22) Which one of the folloing is more easily hydrolysed y

aCueous FD

$l$ and $2l

23) rrange the folloing groups in descending order 2lt D3lt

D3lt DD and l

24) ssign or conguration to each of the folloing

structures

8112019 Chemistry Question 12sci (1)

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i)

ii)

iii)

iv)

DDlt -ED E0E

1) What are alcohols o are they classied

2) What are monohydric alcohols o are they classied

4) Write the structures of folloing alcohols

i) 1Ethylcyclohexanol ii) ex3en2ol iii)yclohex2en1ol

iv) -entane1lt4diol

v) 2lt4imethylhexane1lt3lt$triol

$) Explain the folloing

i) -ropan1ol has higher oiling point than nutane

ii) ampethanol is more solule in ater than -ropan1ol

) Write the mechanism of hydration of ethylene to ethyl alcohol

+) -ropan1ol can not e prepared y acid catalyst hydration of

propenelt then ho is propene converted into propan1ol

)5) o is propanone converted into

i) -ropan2ol ii) 2ampethyl propan2ol

17) o ill you otain utan2ol from

8112019 Chemistry Question 12sci (1)

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i) -ropanal ii) utan2one iii) ut2ene

11) o is propan1ol prepared from

i) -ropanal ii) -ropanoic acid

12) o is cyclopentanol prepared from

i) yclopentanone ii) yclopentene

14) Write the mechanism of acid catalysed dehydration of ethanol

to give ethane

1$) Write the structure of aldehyde lt caroxylic acid and ester

that yield folloing alcohol

1+) o ill you prepare

i) 2ampethylutane1ol from an al8ene

ii) cyclohexylmethanol from a Grignard reagent

iii) 1phenylethanol from acetaldehyde

1) o are folloing conversions rought aout

i) en=yl chloride to en=yl alcohol

ii) en=yl alcohol to en=oic acid

iii) 1Ethylcyclohexanol from yclohexanone

15) What are phenols o are they classied

27)21) Give the structures and (- names of isomeric phenols

represented y the molecular formula 17D

22) o is phenol prepared from

8112019 Chemistry Question 12sci (1)

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i) hloroen=ene ii) (sopropyl en=ene iii) en=ene sulphonic

acid iv) aniline

23 ) Explain the folloing

i) -henol is more acidic than phenol

ii) onitrophenol is more acidic than ocresol

iii) pnitrophenol is less volatile than onitrophenol

24) Explain the folloing reactions of phenol

i) FoleBs reaction ii) iemer0iemann reaction

2$) ame the reagents used to convert phenol intoi) picric acid ii) 2lt4lt0riromophenol iii) en=ene iv) ophenol

sulphonic acid

2) What is the action of folloing reagents on phenol i)

romine in 2 at lo temperature

ii) ilute nitric acid at room temperature iii) oncentrated

sulphuric acid at room temperature

2+) Give distinguish test eteen phenol and ethanol

2) What are ethers o are ethers classied

25) What is metamerism Give the structure and (- name of

metamers of 2ampethoxypropane

37) Write the mechanism for acidic dehydration of ethanol

31) o is diethyl ether prepared y continuous ethericationprocess Why is the process so called

32) o ill you prepared methoxyethane from

i) l8yl halide ii) ia=omethane

33) tate the important uses of i) -henol ii) diethyl ether

8112019 Chemistry Question 12sci (1)

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34) Write the mechanism of action of hydrogen romide on tert

utyl methyl ether

3$) Explain the folloing reactions of anisole

i) romination ii) itration iii) 6riedelrafts al8ylation iv)6riedelrafts acylation

3) Explainlt i) 0he OD group attached to aromatic ring in

phenols and ii) 0he al8oxy group in al8yl aryl ethers are ortholt

para directing and activate the aromatic ring toars electrophilic

sustitution

3+) Write the chemical eCuations for Williamson synthesis of 2

Ethoxy2methypentane starting from ethanol and 2ampethylpentan2ol

3) n organic compound ith the formula 417D3 shos

properties of ether and alcohol hen treated ith an excess of

r yields only one compound 1lt2 diromomethane Write

structural formula of ether and that of alcohol

ALDEHYDES ETONES AND CABO$YLIC

ACID

1) Write the structure and give (- names of the folloing

compounds

i) chloropropionaldehyde

ii) Rhydroxyutyraldehyde

iii) isoutyraldehyde

iv) Rmethylvaleraldehyde

8112019 Chemistry Question 12sci (1)

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v) isopropyl methyl 8etone

vi) diisopropyl 8etone

vii) mromoen=aldehyde

viii) dien=yl 8etone

ix) divinyl 8etone

x) allyl methyl 8etone

xi) ethyl phenyl 8etone

xii) nutyrophenone

2) Write the structure of folloing compounds

i) 4ampethyl3nitroen=ophenone ii) 2ampethyl4oxopentanal iii)

3Dxopentanoic acid iv) 4chloropropiophenone v) 3

ampethoxyutanal vi) 4ydroxycyclohaxane caraldehyde

3) o ill you prepare i) propiophenone from propanenitrile ii)

4chloroen=aldehyde from 4chlorotoluene iii)

yclohaxanecaraldehyde from cyclohexylmethanol iv) 4

methoxyacetophenone from anisole v) 4methylen=aldehydefrom toluene

4) rrange the folloing compounds in the increasing order of

their oiling points

i) dimethyl etherlt ethyl alcohollt propanelt acetaldehyde

ii) acetonelt npropyl alcohollt ethyl methyl alcohol and nutane

$) What is the action of hydrogen cyanide in asic medium on i)utanone ii) 2lt4dichloroen=aldehyde

) What is the action of folloing compounds on cyclohexanone in

presence of dry hydrogen chloride

i) ethyl alcohol ii) ethylene glycol

8112019 Chemistry Question 12sci (1)

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+) Write the structure of product in the folloing reactions

i) 322D3

ii) $2D3

) Write the structures of caronyl compounds and ammonia

derivatives that comine to give folloing imines

i)

ii)

iii)

iv)v)

vi)

5) Write the chemical eCuations for aldol condensation or

anni==aro reaction that folloing compounds undergo

i) -ropanal ii) 2ampethylpropanal iii) -entanal iv) 3

ampethylutanal v) cetophenonevi) pampethoxyen=aldehyde vii) 2ampethylcyclohaxanone viii)

chloral ix) yclopentanone

x) -henyl acetaldehyde xi) 1-henylpropan1one

17) Write the structure of the maKor product of the folloing

crossed aldol condensation

i) formaldehyde and propionaldehydeii) en=aldehyde ith acetone

11) (dentify the compounds SBlt SB and SB in the folloing

reactions and rerite the complete eCuations

i)

8112019 Chemistry Question 12sci (1)

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ii)

12)o ill you eect folloing tostep conversions

i) -ropanal into utanone ii) utanone into ut2ene iii)

en=ene into mromoacetophenone iv) ex3yne into exan

3one v) en=oic acid into mnitroen=ylalcohol

13) o ill you convert en=aldehyde into folloing compounds

ampore than one steps may e reCuired

i) en=ophenone ii) en=oic acid iii) 3-henylpropan1ol iv)hydroxyphenylacetic acid

14) Give a chemical test to distinguish eteen folloing pairs of

compounds

i) Ethanal and propanone ii) -rpopanal and propanone iii)

-entane2one and pentane3one

1$) Write the structure and (- names of folloing caroxylicacids

i) ltRdimethylutanoic acid ii) Rphenylutyric acid iii) 1038389

chloromethylvaleric acid

Page 17: Chemistry Question 12sci (1)

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Electro chemitry

Theory

1ene the terms resistivitylt conductivity and molar

conductivity Give its ( units

2Explain the terms conductivity and molar conductivity o are

they interrelated

3Why does conductivity of s solution decrease on dilution of a

solution

4o does molar conductivity of an electrolyte vary ith

concentration

$o does the variation in molar conductivity of an electrolyte

ith concentration diers for strong and ea8 electrolytes

Explain the dierent ehaviour of strong and ea8 electrolytes

toards the variation of conductivity ith concentration

+tate and explain Fohlrausch la of independent migration of

ions o it is useful to determine the molar conductivity of ea8

electrolytes at =ero concentration

o is the molar conductivity of strong electrolytes at =ero

concentration determined y graphical method Why is this

method not useful for ea8 electrolytes

5What is cell constant What is its unit o is it determined

17ene anode and cathode

11 Why is cathode in electrolytic cell considered to e negative

and anode positive

12 -redict the half cell reactions that occur hen fused Fl is

electroly=ed in a cell ith inert electrodes What is the overall cell

reaction

8112019 Chemistry Question 12sci (1)

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13 tate 6aradayBs las of electrolysis

14o ill you calculate the numer of moles of electrons

actually passed and mass of the sustance produced during

electrolysis of a salt solution using reaction stoichiometry1$o many electrons ill have a total charge of 1 coulom

1 o many faradayBs ould e reCuired to plate out 177 mole

of free metal from the folloing cations

a) ampg2H

) r3H

c) -2H

d) uH

1+ ene coulom and faraday

1 escrie the electrolysis of molten al using inert

electrodes

15 What is the dierence eteen electrolytic cell and voltaic

cell

27 Why is anode in galvanic cell considered to e negative and

cathode positive electrode

21 8etch the cell for the electrolysis of molten al (ndicate

cathodelt anode and their signs ho the Jo of electrons and

ions

22 What is salt ridge What are its functions in galvanic cell

23 What are the conventions used to rite cell diagramcell

formula)

24 escrie the construction of aniel cell Write electrode half

reactions and net cell reaction in aniel cell

8112019 Chemistry Question 12sci (1)

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2$ escrie the folloing types of electrodes giving one

examplelt ith reference to formulationlt electrode reaction and

ernst eCuation for electrode potential

a) metalsparingly salt electrode) gas electrode

2 What is redox electrode Give one example ith formulationlt

electrode reaction and ernst eCuation for electrode potential

2+ ene the terms oxidation potentiallt reduction potential and

cell potential

2 What conditions are reCuired for a cell potential to e calledstandard cell potential

25 6ormulate a cell for each of the folloing electrode reactions

a) n2H aC) H 2gl s) L n4H aC) H 2gs) H2l aC)

) ampg s) H r2l) L ampg2H aC) H 2r aC)

37 6ormulate a cell from the folloing electrode reactions

a) l2g) H 2e L 2l aC)

) 2( aC) L (2s) H 2e

31 What are standard electrode potential and standard emf of

the galvanic cell

32 Write ernst eCuation and explain the terms involved in it

What part of the eCuation represents the correction factor for

nonstandard state conditions

33 Write ernst eCuation for the folloing reactions

a) rs) H 36e3H aC) L r3H aC) H 36e2H aC)

) l3H aC) H 3e L l s)

8112019 Chemistry Question 12sci (1)

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34 onsider the folloing E7 values and half reactions

(2s) H 2e L 2( aC) E7A7$3$M

u2H aC) H 2e L u s) E7A733+M

d2H aC) H 2e L ds) E7A77473

a) Which of the metals or nonmetals or ions is the strongest

oxidi=ing agent and hich is the strongest reducing agent

) 0he half reactions can e used to construct three galvanic

cells Which ill have the highest cell potential

3$ -redict hether

a) gH can oxidi=e - to -2H under standard state condition

) E7gA7+55M and E7

-A712M

3 -redict hether the folloing reactions occur under standard

state conditions

a) Dxidation of gs) y l2g) E7gA7Mlt E7

l2A13M

) eduction of 6e

3H

to 6e

2H

y us) E

7

6e3Hlt 6e2H A 7++MltE7uA14M

3+ 8etch and descrie the operation of

a) dry cell

) 2D2 fuel cell

3 What are the advantages and disadvantages of fuel cells

35 8etch lead storage cell

47 Write electrode reaction and overall cell reaction during the

operation of lead storage cell

41 Write electrode reaction and overall cell reaction hen lead

accumulator ehaves as an electrolytic cell

8112019 Chemistry Question 12sci (1)

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42 o can ernst eCuation e used to sho that electrode

potential is eCual to the standard electrode potential y putting

approximate values in ernst eCuation se u2HNd half cell for

illustration

43 o are G7lt E7cell and eCuilirium constant related for a

particular reaction

44 Why is eCuilirium constant related to E7cell and not Ecell

4$ G7 for a redox reaction depends on the numer of electrons

transferred Explain

4 o does the eCuiliriumlt G7An6E7 explain that an

electrical potential is an intensive property

4+ Write shorthand notation for the cell for each of the folloing

reactions

a) u2H aC) H 2gs) H 2r L u s) H 2gr s)

) n2H aC) is oxidi=ed y r2 l)

4 rrange the folloing reducing agents in order of increasing

strength under standard state conditions 0he standard potentialsfor the reduction half reactions are given

gH aC) 7M)lt l3H aC) 1M)lt 62g) 2+M)lt l2g) 13M)lt

(2s) 7$4M)lt d2H aC) 74M)

45 rrange the folloing oxidi=ing agents in order of increasing

strength under standard state conditions 0he standard potentials

for the reduction half reactions are given

ls) 1M)lt l aC) 13M)lt us) 734M)lt 6es)744M)lt r

aC) 175M)lt is) 72M)

$7 Which species in each of the folloing pairs is etter oxidi=ing

agent under standard state conditions standard potential are

given) Give reasons for your anser

8112019 Chemistry Question 12sci (1)

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a) r2l) 175M) or u3H 14M)

) H aC) or gH aC) 7M)

c) -2H aC) 713M) or o2H 72M)

d) l2 g) 13M) or r3H 7+4M)

$1 Which species in each of the folloing pairs is etter reducing

agent under standard conditions E7 values are given Give

reasons for your anser

a) Fs) 2353M) or ampgs) 23M)

) o2H aC) 11M) or (n s) 714M)

c) e3H aC) 11M) or 0i2H73+M)

d) gl) 7M) or is) 723M)

PROBLEMS

1 conductivity cell lled ith 771amp Fl given at 2$o the

resistance of 74ohms 0he conductivity of Fl at 2$

o

is 7777

CHEMISTRY

d f O DF EEampE0

1) What are dloc8 elements

8112019 Chemistry Question 12sci (1)

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2) What are floc8 elements

3) Explain the meaning of

i) 0ransition series ii) (nner transition element

4) Explain the position of the folloing in periodic tale

i) dloc8 elements ii) anthanoids iii) ctinoids

$) Explain the oxidation state of 1st ro elements of transition

series

) Explain the oxidation states of lanthanoids and actinoids

+) Why do lanthanoids form coloured compounds ) Explainlt most of the transition metal compounds are

remar8aly coloured

5) Why chromium has electronic conguration 3d$ 4s1 and not 3d4

4s2

17) Why does copper sho anormal electronic conguration

11) Explainlt the trends in atomic and ionic si=es of lanthanoidsand also of 1st ro elements of transition series

12) What are actinoids

13) What are transuranic elements Write their name

14) Why transition elements sho tendency to form large numer

of complexes

1$) Explain the compounds of copper ((() are coloured ut thoseof =inc are colourless

1) o is potassium dichromate prepared from chrome ion

1+) Write the preparationlt properties and use of potassium

permanganate

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1) Explainlt hy -t(M) complexes are generally octahedral hile

-t(() complexes are sCuare planar

15) ierentiate eteen lanthanoids and actinoids

27) What are chemical tins Give examples

21) Explain hy Gd3H is colourless

COORDINATION COMPOUNDS

1) What is the dierence eteen doule salt and coordinationcompounds

2) Explainlt hy 6e4)2 D4)22D) is a salt ut F 4P6e)Q is a

complex compound

3) Write the formula of the folloing complexes

i) alcium hexa cyano ferrate (()

ii) iammine dichloro platinum

iii) is ethylene diammine) dichloro iridium ((() ion

iv) -entamine caronato chromium ((() D(E

v) 0risethylene diammine ) coalt((() sulphate

vi) iamine ethylene diammine nic8el (() acetate

4) Write the rules hich are applied hile riting the formulas of

coordination compounds

$) ene the terms

i) entral metal atomgtion

ii) igand

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iii) oordination compound

iv) oordination sphere

v) oordination numer

vi) oordination polyhedral

vii) omoleptic and heteroleptic complexes

viii) harge on the complexes

ix) oordination entity

) Write (- name of the folloing complexes

i) Pr2D)4 l2QD3

ii) P-ten)l4Q

iii) F 2Pi)4Q

iv) sP6el4Q

v) rl3-y)3

vi) F 3Po2D4)3Q

vii) Por2en)2Q

viii) P-tl4Q2

ix) Po2D))en)2Q2H

x) F 3Pl2D4)3Q

+) Explain the importance of principles of additive nomenclature

) (dentify the folloing ions y a simple test forming complex

compound

i) u2H ii) i2H iii) 6e3H iv) o2H

8112019 Chemistry Question 12sci (1)

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5) Dn the asis of WernerBs theory explainlt hy coalt amine

complexlt ol343 hen treated ith gD3 solution

precipitates only one ion even though there are three ions

17) alculate the eective atomic numer E) of the centralmetal atom in the folloing compounds

i) F 3P6e)Q ii) rD)

11) Write the postulates of WernerBs theory

12) Explain the onding in ol333 and ol3$3

13) Explain stereoisomerism in metal complexes ith coordination

numer 4 and 14) Why the tetrahedral complexes do not exhiit geometrical

isomerism

1$) ra cis and trans geometrical isomers of

i) dichlororomo iodo palladium (() ion

ii) P-t(()3)2l2Q

iii) Po((()3)l3Q

iv) Po((()3)42D)lQ2H

1) ra all possile geometrical isomers of P-t(M)

3)2-y)2l2Q2H ion

1+) Write oxidation statelt coordination numer and electronic

conguration of the metal atom in the folloing complexes

i) rl3-y)3 ii) F 4Pampn)Q

1) lassify the folloing ligands into monodentatelt polydentate

and amidentate

i) 3 ii) iii) iv) v) D2 vi) ethylene diammine

vii) oxalate

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viii) triaminotriethylamine

15) ol3$32D is a pin8 solidlt the solution of this salt is also

pin8 and formed 3mol of gl ith silver nitrate solution Dn

heating pin8 solidlt it loses one ater molecule and forms purplesolid having same ratio of o3l as that of pin8 solid 0he

purple solid hen dissolved in ater and treated ith forms 1 mol

of gl ra the structure and name of the pin8 and purple

solids

27) ame the octahedral complex ions

i) Po2D4) en)2QH ii) transPr)4 3)2Q

21) ra the structures of the folloing complexes

i) Pol4Q2 ii) Pampn3)Q2H iii) P-tlQ iv) iD)4 v) Pi)4Q2

22) (n an octahedral crystal eldlt dra the gure to sho splitting

of dorital

23) What are ea8 eld and strong eld ligands What is spectro

chemical series

24) Pi)4Q2 is diamagnetic hile Pr3)Q3H is paramagnetltexplain

2$) Dn the asis of valence ond theory explain the nature of

onding in the folloing complexes

i) Po6Q3 ii) Po2D4)3Q3

2) lue coloured copper sulphate solution gave folloing

experimental results Explain the same

i) With aCueous potassium chloride it gave right green solution

ii) With aCueous potassium Juoride it gave a green precipitate

2+) ra the structures of optically active isomers of Poen)3Q3H

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2) ra the geometrical and optical isomers of

i) Pol2en)2QH ii) Polen)23)Q2H

25) What is lin8age isomerism Explain ith an example

37) What are hydrate isomers Explain ith examples

31) Explain the structure of

i) upraammonium sulphate ii) Po3)Q3H

32) What are the limitations of valence ond theory

33) Explain the magnetic properties of coordination compounds

34) Write the salient features of crystal eld theory What are itslimitations

3$) Explain the octahedral geometry of complexes using crystal

eld theory

3) Write a note on colours in coordination compounds

3+) Explain the factors aecting the staility of coordination

compound3) Write rief the applications of coordination compounds

HALOGEN DERIVATIVES O ALANES AND ARENES

1) What are al8yl halides o are they classied

2) Write (- names of the folloing compounds

i)

ii) 2Al

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iii)

iv)

v)

vi) secutyl chloride

vii) neopentyl romide

viii) tutyl iodide

ix) isopropyl romide

3) o is ethyl romide prepared from

i) Ethyl alcohol ii) ethane iii) ethane

4)Write the preparation of isopropyl chloride using the folloing

reagents

i) -l3 ii) -l$ iii) l2 iv) l v) Dl2

$) o is group replaced y folloing functional rroups

i) OD ii) O iii) O iv) O2

) Write a note on

i) andmeyerBs reaction ii) Wurt= reaction iii) 6in8elstein reaction

iv) 6ittig reaction v) 6riedel raft reaction

+) (dentify and in the folloing

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) Give the structures of the folloing compounds

i) 3romo2methyl pentane ii) 2romo3ethyl hexane iii) 1

holo utane

iv) pichloroen=ene v) 1lt1lt10richloroethane

5) student has performed an experiment in the laoratory e

mixed ater ith hexane and found to layers separated econd

time he mixed chloroform ith ater and he again found to

layers in the test tue Explain hich ill e upper layer and

hich one ill e loer layer in oth the experiments

17) onvert 1hloroutane into the folloing compounds

i) utane1ol ii) 1(odoutane iii) 3222 iv)

11) 6or each pair of compoundslt state hich compound is etter

2 sustrate

i) 2romoutanelt isopropyl romide ii) 1(odo2lt2dimethyl

propane or isopropyl iodide

12) hoose the memer that ill react faster from the folloing

pairs y 1 mechanism

13) -redict the expected product of sustitution reaction

i) isoutyl chloride mH sodium ethoxide

ii) nutyl chloride H sodium

iii) 1hloro propane H aC potassium hydroxide

iv) aniline H aD2gt l

14) Write the products

i) $22A2 H r L

ii) $A2 H r

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iii)

iv)

v)

1$) (dentify the chiral and achiral molecules

i)

ii)

iii)

1) iscuss 2 mechanism of methyl romide using aCueous

FD ra energy prole diagram1+) Write the mechanism of the reaction hen tutyl chloride is

treated ith aCueous FD ith energy prole diagram

1) ierentiate eteen 1 and 2 mechanism

15) Explain the nature of ond in

i) 322 ii)

27) What are uses of

i) 0 ii) (odoform iii) hloroform iv) aron tetrachloride

21) l8yl halides are polar and miscile ith aterlt explain

22) Which one of the folloing is more easily hydrolysed y

aCueous FD

$l$ and $2l

23) rrange the folloing groups in descending order 2lt D3lt

D3lt DD and l

24) ssign or conguration to each of the folloing

structures

8112019 Chemistry Question 12sci (1)

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i)

ii)

iii)

iv)

DDlt -ED E0E

1) What are alcohols o are they classied

2) What are monohydric alcohols o are they classied

4) Write the structures of folloing alcohols

i) 1Ethylcyclohexanol ii) ex3en2ol iii)yclohex2en1ol

iv) -entane1lt4diol

v) 2lt4imethylhexane1lt3lt$triol

$) Explain the folloing

i) -ropan1ol has higher oiling point than nutane

ii) ampethanol is more solule in ater than -ropan1ol

) Write the mechanism of hydration of ethylene to ethyl alcohol

+) -ropan1ol can not e prepared y acid catalyst hydration of

propenelt then ho is propene converted into propan1ol

)5) o is propanone converted into

i) -ropan2ol ii) 2ampethyl propan2ol

17) o ill you otain utan2ol from

8112019 Chemistry Question 12sci (1)

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i) -ropanal ii) utan2one iii) ut2ene

11) o is propan1ol prepared from

i) -ropanal ii) -ropanoic acid

12) o is cyclopentanol prepared from

i) yclopentanone ii) yclopentene

14) Write the mechanism of acid catalysed dehydration of ethanol

to give ethane

1$) Write the structure of aldehyde lt caroxylic acid and ester

that yield folloing alcohol

1+) o ill you prepare

i) 2ampethylutane1ol from an al8ene

ii) cyclohexylmethanol from a Grignard reagent

iii) 1phenylethanol from acetaldehyde

1) o are folloing conversions rought aout

i) en=yl chloride to en=yl alcohol

ii) en=yl alcohol to en=oic acid

iii) 1Ethylcyclohexanol from yclohexanone

15) What are phenols o are they classied

27)21) Give the structures and (- names of isomeric phenols

represented y the molecular formula 17D

22) o is phenol prepared from

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i) hloroen=ene ii) (sopropyl en=ene iii) en=ene sulphonic

acid iv) aniline

23 ) Explain the folloing

i) -henol is more acidic than phenol

ii) onitrophenol is more acidic than ocresol

iii) pnitrophenol is less volatile than onitrophenol

24) Explain the folloing reactions of phenol

i) FoleBs reaction ii) iemer0iemann reaction

2$) ame the reagents used to convert phenol intoi) picric acid ii) 2lt4lt0riromophenol iii) en=ene iv) ophenol

sulphonic acid

2) What is the action of folloing reagents on phenol i)

romine in 2 at lo temperature

ii) ilute nitric acid at room temperature iii) oncentrated

sulphuric acid at room temperature

2+) Give distinguish test eteen phenol and ethanol

2) What are ethers o are ethers classied

25) What is metamerism Give the structure and (- name of

metamers of 2ampethoxypropane

37) Write the mechanism for acidic dehydration of ethanol

31) o is diethyl ether prepared y continuous ethericationprocess Why is the process so called

32) o ill you prepared methoxyethane from

i) l8yl halide ii) ia=omethane

33) tate the important uses of i) -henol ii) diethyl ether

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34) Write the mechanism of action of hydrogen romide on tert

utyl methyl ether

3$) Explain the folloing reactions of anisole

i) romination ii) itration iii) 6riedelrafts al8ylation iv)6riedelrafts acylation

3) Explainlt i) 0he OD group attached to aromatic ring in

phenols and ii) 0he al8oxy group in al8yl aryl ethers are ortholt

para directing and activate the aromatic ring toars electrophilic

sustitution

3+) Write the chemical eCuations for Williamson synthesis of 2

Ethoxy2methypentane starting from ethanol and 2ampethylpentan2ol

3) n organic compound ith the formula 417D3 shos

properties of ether and alcohol hen treated ith an excess of

r yields only one compound 1lt2 diromomethane Write

structural formula of ether and that of alcohol

ALDEHYDES ETONES AND CABO$YLIC

ACID

1) Write the structure and give (- names of the folloing

compounds

i) chloropropionaldehyde

ii) Rhydroxyutyraldehyde

iii) isoutyraldehyde

iv) Rmethylvaleraldehyde

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v) isopropyl methyl 8etone

vi) diisopropyl 8etone

vii) mromoen=aldehyde

viii) dien=yl 8etone

ix) divinyl 8etone

x) allyl methyl 8etone

xi) ethyl phenyl 8etone

xii) nutyrophenone

2) Write the structure of folloing compounds

i) 4ampethyl3nitroen=ophenone ii) 2ampethyl4oxopentanal iii)

3Dxopentanoic acid iv) 4chloropropiophenone v) 3

ampethoxyutanal vi) 4ydroxycyclohaxane caraldehyde

3) o ill you prepare i) propiophenone from propanenitrile ii)

4chloroen=aldehyde from 4chlorotoluene iii)

yclohaxanecaraldehyde from cyclohexylmethanol iv) 4

methoxyacetophenone from anisole v) 4methylen=aldehydefrom toluene

4) rrange the folloing compounds in the increasing order of

their oiling points

i) dimethyl etherlt ethyl alcohollt propanelt acetaldehyde

ii) acetonelt npropyl alcohollt ethyl methyl alcohol and nutane

$) What is the action of hydrogen cyanide in asic medium on i)utanone ii) 2lt4dichloroen=aldehyde

) What is the action of folloing compounds on cyclohexanone in

presence of dry hydrogen chloride

i) ethyl alcohol ii) ethylene glycol

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+) Write the structure of product in the folloing reactions

i) 322D3

ii) $2D3

) Write the structures of caronyl compounds and ammonia

derivatives that comine to give folloing imines

i)

ii)

iii)

iv)v)

vi)

5) Write the chemical eCuations for aldol condensation or

anni==aro reaction that folloing compounds undergo

i) -ropanal ii) 2ampethylpropanal iii) -entanal iv) 3

ampethylutanal v) cetophenonevi) pampethoxyen=aldehyde vii) 2ampethylcyclohaxanone viii)

chloral ix) yclopentanone

x) -henyl acetaldehyde xi) 1-henylpropan1one

17) Write the structure of the maKor product of the folloing

crossed aldol condensation

i) formaldehyde and propionaldehydeii) en=aldehyde ith acetone

11) (dentify the compounds SBlt SB and SB in the folloing

reactions and rerite the complete eCuations

i)

8112019 Chemistry Question 12sci (1)

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ii)

12)o ill you eect folloing tostep conversions

i) -ropanal into utanone ii) utanone into ut2ene iii)

en=ene into mromoacetophenone iv) ex3yne into exan

3one v) en=oic acid into mnitroen=ylalcohol

13) o ill you convert en=aldehyde into folloing compounds

ampore than one steps may e reCuired

i) en=ophenone ii) en=oic acid iii) 3-henylpropan1ol iv)hydroxyphenylacetic acid

14) Give a chemical test to distinguish eteen folloing pairs of

compounds

i) Ethanal and propanone ii) -rpopanal and propanone iii)

-entane2one and pentane3one

1$) Write the structure and (- names of folloing caroxylicacids

i) ltRdimethylutanoic acid ii) Rphenylutyric acid iii) 1038389

chloromethylvaleric acid

Page 18: Chemistry Question 12sci (1)

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13 tate 6aradayBs las of electrolysis

14o ill you calculate the numer of moles of electrons

actually passed and mass of the sustance produced during

electrolysis of a salt solution using reaction stoichiometry1$o many electrons ill have a total charge of 1 coulom

1 o many faradayBs ould e reCuired to plate out 177 mole

of free metal from the folloing cations

a) ampg2H

) r3H

c) -2H

d) uH

1+ ene coulom and faraday

1 escrie the electrolysis of molten al using inert

electrodes

15 What is the dierence eteen electrolytic cell and voltaic

cell

27 Why is anode in galvanic cell considered to e negative and

cathode positive electrode

21 8etch the cell for the electrolysis of molten al (ndicate

cathodelt anode and their signs ho the Jo of electrons and

ions

22 What is salt ridge What are its functions in galvanic cell

23 What are the conventions used to rite cell diagramcell

formula)

24 escrie the construction of aniel cell Write electrode half

reactions and net cell reaction in aniel cell

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2$ escrie the folloing types of electrodes giving one

examplelt ith reference to formulationlt electrode reaction and

ernst eCuation for electrode potential

a) metalsparingly salt electrode) gas electrode

2 What is redox electrode Give one example ith formulationlt

electrode reaction and ernst eCuation for electrode potential

2+ ene the terms oxidation potentiallt reduction potential and

cell potential

2 What conditions are reCuired for a cell potential to e calledstandard cell potential

25 6ormulate a cell for each of the folloing electrode reactions

a) n2H aC) H 2gl s) L n4H aC) H 2gs) H2l aC)

) ampg s) H r2l) L ampg2H aC) H 2r aC)

37 6ormulate a cell from the folloing electrode reactions

a) l2g) H 2e L 2l aC)

) 2( aC) L (2s) H 2e

31 What are standard electrode potential and standard emf of

the galvanic cell

32 Write ernst eCuation and explain the terms involved in it

What part of the eCuation represents the correction factor for

nonstandard state conditions

33 Write ernst eCuation for the folloing reactions

a) rs) H 36e3H aC) L r3H aC) H 36e2H aC)

) l3H aC) H 3e L l s)

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34 onsider the folloing E7 values and half reactions

(2s) H 2e L 2( aC) E7A7$3$M

u2H aC) H 2e L u s) E7A733+M

d2H aC) H 2e L ds) E7A77473

a) Which of the metals or nonmetals or ions is the strongest

oxidi=ing agent and hich is the strongest reducing agent

) 0he half reactions can e used to construct three galvanic

cells Which ill have the highest cell potential

3$ -redict hether

a) gH can oxidi=e - to -2H under standard state condition

) E7gA7+55M and E7

-A712M

3 -redict hether the folloing reactions occur under standard

state conditions

a) Dxidation of gs) y l2g) E7gA7Mlt E7

l2A13M

) eduction of 6e

3H

to 6e

2H

y us) E

7

6e3Hlt 6e2H A 7++MltE7uA14M

3+ 8etch and descrie the operation of

a) dry cell

) 2D2 fuel cell

3 What are the advantages and disadvantages of fuel cells

35 8etch lead storage cell

47 Write electrode reaction and overall cell reaction during the

operation of lead storage cell

41 Write electrode reaction and overall cell reaction hen lead

accumulator ehaves as an electrolytic cell

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42 o can ernst eCuation e used to sho that electrode

potential is eCual to the standard electrode potential y putting

approximate values in ernst eCuation se u2HNd half cell for

illustration

43 o are G7lt E7cell and eCuilirium constant related for a

particular reaction

44 Why is eCuilirium constant related to E7cell and not Ecell

4$ G7 for a redox reaction depends on the numer of electrons

transferred Explain

4 o does the eCuiliriumlt G7An6E7 explain that an

electrical potential is an intensive property

4+ Write shorthand notation for the cell for each of the folloing

reactions

a) u2H aC) H 2gs) H 2r L u s) H 2gr s)

) n2H aC) is oxidi=ed y r2 l)

4 rrange the folloing reducing agents in order of increasing

strength under standard state conditions 0he standard potentialsfor the reduction half reactions are given

gH aC) 7M)lt l3H aC) 1M)lt 62g) 2+M)lt l2g) 13M)lt

(2s) 7$4M)lt d2H aC) 74M)

45 rrange the folloing oxidi=ing agents in order of increasing

strength under standard state conditions 0he standard potentials

for the reduction half reactions are given

ls) 1M)lt l aC) 13M)lt us) 734M)lt 6es)744M)lt r

aC) 175M)lt is) 72M)

$7 Which species in each of the folloing pairs is etter oxidi=ing

agent under standard state conditions standard potential are

given) Give reasons for your anser

8112019 Chemistry Question 12sci (1)

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a) r2l) 175M) or u3H 14M)

) H aC) or gH aC) 7M)

c) -2H aC) 713M) or o2H 72M)

d) l2 g) 13M) or r3H 7+4M)

$1 Which species in each of the folloing pairs is etter reducing

agent under standard conditions E7 values are given Give

reasons for your anser

a) Fs) 2353M) or ampgs) 23M)

) o2H aC) 11M) or (n s) 714M)

c) e3H aC) 11M) or 0i2H73+M)

d) gl) 7M) or is) 723M)

PROBLEMS

1 conductivity cell lled ith 771amp Fl given at 2$o the

resistance of 74ohms 0he conductivity of Fl at 2$

o

is 7777

CHEMISTRY

d f O DF EEampE0

1) What are dloc8 elements

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2) What are floc8 elements

3) Explain the meaning of

i) 0ransition series ii) (nner transition element

4) Explain the position of the folloing in periodic tale

i) dloc8 elements ii) anthanoids iii) ctinoids

$) Explain the oxidation state of 1st ro elements of transition

series

) Explain the oxidation states of lanthanoids and actinoids

+) Why do lanthanoids form coloured compounds ) Explainlt most of the transition metal compounds are

remar8aly coloured

5) Why chromium has electronic conguration 3d$ 4s1 and not 3d4

4s2

17) Why does copper sho anormal electronic conguration

11) Explainlt the trends in atomic and ionic si=es of lanthanoidsand also of 1st ro elements of transition series

12) What are actinoids

13) What are transuranic elements Write their name

14) Why transition elements sho tendency to form large numer

of complexes

1$) Explain the compounds of copper ((() are coloured ut thoseof =inc are colourless

1) o is potassium dichromate prepared from chrome ion

1+) Write the preparationlt properties and use of potassium

permanganate

8112019 Chemistry Question 12sci (1)

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1) Explainlt hy -t(M) complexes are generally octahedral hile

-t(() complexes are sCuare planar

15) ierentiate eteen lanthanoids and actinoids

27) What are chemical tins Give examples

21) Explain hy Gd3H is colourless

COORDINATION COMPOUNDS

1) What is the dierence eteen doule salt and coordinationcompounds

2) Explainlt hy 6e4)2 D4)22D) is a salt ut F 4P6e)Q is a

complex compound

3) Write the formula of the folloing complexes

i) alcium hexa cyano ferrate (()

ii) iammine dichloro platinum

iii) is ethylene diammine) dichloro iridium ((() ion

iv) -entamine caronato chromium ((() D(E

v) 0risethylene diammine ) coalt((() sulphate

vi) iamine ethylene diammine nic8el (() acetate

4) Write the rules hich are applied hile riting the formulas of

coordination compounds

$) ene the terms

i) entral metal atomgtion

ii) igand

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iii) oordination compound

iv) oordination sphere

v) oordination numer

vi) oordination polyhedral

vii) omoleptic and heteroleptic complexes

viii) harge on the complexes

ix) oordination entity

) Write (- name of the folloing complexes

i) Pr2D)4 l2QD3

ii) P-ten)l4Q

iii) F 2Pi)4Q

iv) sP6el4Q

v) rl3-y)3

vi) F 3Po2D4)3Q

vii) Por2en)2Q

viii) P-tl4Q2

ix) Po2D))en)2Q2H

x) F 3Pl2D4)3Q

+) Explain the importance of principles of additive nomenclature

) (dentify the folloing ions y a simple test forming complex

compound

i) u2H ii) i2H iii) 6e3H iv) o2H

8112019 Chemistry Question 12sci (1)

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5) Dn the asis of WernerBs theory explainlt hy coalt amine

complexlt ol343 hen treated ith gD3 solution

precipitates only one ion even though there are three ions

17) alculate the eective atomic numer E) of the centralmetal atom in the folloing compounds

i) F 3P6e)Q ii) rD)

11) Write the postulates of WernerBs theory

12) Explain the onding in ol333 and ol3$3

13) Explain stereoisomerism in metal complexes ith coordination

numer 4 and 14) Why the tetrahedral complexes do not exhiit geometrical

isomerism

1$) ra cis and trans geometrical isomers of

i) dichlororomo iodo palladium (() ion

ii) P-t(()3)2l2Q

iii) Po((()3)l3Q

iv) Po((()3)42D)lQ2H

1) ra all possile geometrical isomers of P-t(M)

3)2-y)2l2Q2H ion

1+) Write oxidation statelt coordination numer and electronic

conguration of the metal atom in the folloing complexes

i) rl3-y)3 ii) F 4Pampn)Q

1) lassify the folloing ligands into monodentatelt polydentate

and amidentate

i) 3 ii) iii) iv) v) D2 vi) ethylene diammine

vii) oxalate

8112019 Chemistry Question 12sci (1)

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viii) triaminotriethylamine

15) ol3$32D is a pin8 solidlt the solution of this salt is also

pin8 and formed 3mol of gl ith silver nitrate solution Dn

heating pin8 solidlt it loses one ater molecule and forms purplesolid having same ratio of o3l as that of pin8 solid 0he

purple solid hen dissolved in ater and treated ith forms 1 mol

of gl ra the structure and name of the pin8 and purple

solids

27) ame the octahedral complex ions

i) Po2D4) en)2QH ii) transPr)4 3)2Q

21) ra the structures of the folloing complexes

i) Pol4Q2 ii) Pampn3)Q2H iii) P-tlQ iv) iD)4 v) Pi)4Q2

22) (n an octahedral crystal eldlt dra the gure to sho splitting

of dorital

23) What are ea8 eld and strong eld ligands What is spectro

chemical series

24) Pi)4Q2 is diamagnetic hile Pr3)Q3H is paramagnetltexplain

2$) Dn the asis of valence ond theory explain the nature of

onding in the folloing complexes

i) Po6Q3 ii) Po2D4)3Q3

2) lue coloured copper sulphate solution gave folloing

experimental results Explain the same

i) With aCueous potassium chloride it gave right green solution

ii) With aCueous potassium Juoride it gave a green precipitate

2+) ra the structures of optically active isomers of Poen)3Q3H

8112019 Chemistry Question 12sci (1)

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2) ra the geometrical and optical isomers of

i) Pol2en)2QH ii) Polen)23)Q2H

25) What is lin8age isomerism Explain ith an example

37) What are hydrate isomers Explain ith examples

31) Explain the structure of

i) upraammonium sulphate ii) Po3)Q3H

32) What are the limitations of valence ond theory

33) Explain the magnetic properties of coordination compounds

34) Write the salient features of crystal eld theory What are itslimitations

3$) Explain the octahedral geometry of complexes using crystal

eld theory

3) Write a note on colours in coordination compounds

3+) Explain the factors aecting the staility of coordination

compound3) Write rief the applications of coordination compounds

HALOGEN DERIVATIVES O ALANES AND ARENES

1) What are al8yl halides o are they classied

2) Write (- names of the folloing compounds

i)

ii) 2Al

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iii)

iv)

v)

vi) secutyl chloride

vii) neopentyl romide

viii) tutyl iodide

ix) isopropyl romide

3) o is ethyl romide prepared from

i) Ethyl alcohol ii) ethane iii) ethane

4)Write the preparation of isopropyl chloride using the folloing

reagents

i) -l3 ii) -l$ iii) l2 iv) l v) Dl2

$) o is group replaced y folloing functional rroups

i) OD ii) O iii) O iv) O2

) Write a note on

i) andmeyerBs reaction ii) Wurt= reaction iii) 6in8elstein reaction

iv) 6ittig reaction v) 6riedel raft reaction

+) (dentify and in the folloing

8112019 Chemistry Question 12sci (1)

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) Give the structures of the folloing compounds

i) 3romo2methyl pentane ii) 2romo3ethyl hexane iii) 1

holo utane

iv) pichloroen=ene v) 1lt1lt10richloroethane

5) student has performed an experiment in the laoratory e

mixed ater ith hexane and found to layers separated econd

time he mixed chloroform ith ater and he again found to

layers in the test tue Explain hich ill e upper layer and

hich one ill e loer layer in oth the experiments

17) onvert 1hloroutane into the folloing compounds

i) utane1ol ii) 1(odoutane iii) 3222 iv)

11) 6or each pair of compoundslt state hich compound is etter

2 sustrate

i) 2romoutanelt isopropyl romide ii) 1(odo2lt2dimethyl

propane or isopropyl iodide

12) hoose the memer that ill react faster from the folloing

pairs y 1 mechanism

13) -redict the expected product of sustitution reaction

i) isoutyl chloride mH sodium ethoxide

ii) nutyl chloride H sodium

iii) 1hloro propane H aC potassium hydroxide

iv) aniline H aD2gt l

14) Write the products

i) $22A2 H r L

ii) $A2 H r

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iii)

iv)

v)

1$) (dentify the chiral and achiral molecules

i)

ii)

iii)

1) iscuss 2 mechanism of methyl romide using aCueous

FD ra energy prole diagram1+) Write the mechanism of the reaction hen tutyl chloride is

treated ith aCueous FD ith energy prole diagram

1) ierentiate eteen 1 and 2 mechanism

15) Explain the nature of ond in

i) 322 ii)

27) What are uses of

i) 0 ii) (odoform iii) hloroform iv) aron tetrachloride

21) l8yl halides are polar and miscile ith aterlt explain

22) Which one of the folloing is more easily hydrolysed y

aCueous FD

$l$ and $2l

23) rrange the folloing groups in descending order 2lt D3lt

D3lt DD and l

24) ssign or conguration to each of the folloing

structures

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i)

ii)

iii)

iv)

DDlt -ED E0E

1) What are alcohols o are they classied

2) What are monohydric alcohols o are they classied

4) Write the structures of folloing alcohols

i) 1Ethylcyclohexanol ii) ex3en2ol iii)yclohex2en1ol

iv) -entane1lt4diol

v) 2lt4imethylhexane1lt3lt$triol

$) Explain the folloing

i) -ropan1ol has higher oiling point than nutane

ii) ampethanol is more solule in ater than -ropan1ol

) Write the mechanism of hydration of ethylene to ethyl alcohol

+) -ropan1ol can not e prepared y acid catalyst hydration of

propenelt then ho is propene converted into propan1ol

)5) o is propanone converted into

i) -ropan2ol ii) 2ampethyl propan2ol

17) o ill you otain utan2ol from

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i) -ropanal ii) utan2one iii) ut2ene

11) o is propan1ol prepared from

i) -ropanal ii) -ropanoic acid

12) o is cyclopentanol prepared from

i) yclopentanone ii) yclopentene

14) Write the mechanism of acid catalysed dehydration of ethanol

to give ethane

1$) Write the structure of aldehyde lt caroxylic acid and ester

that yield folloing alcohol

1+) o ill you prepare

i) 2ampethylutane1ol from an al8ene

ii) cyclohexylmethanol from a Grignard reagent

iii) 1phenylethanol from acetaldehyde

1) o are folloing conversions rought aout

i) en=yl chloride to en=yl alcohol

ii) en=yl alcohol to en=oic acid

iii) 1Ethylcyclohexanol from yclohexanone

15) What are phenols o are they classied

27)21) Give the structures and (- names of isomeric phenols

represented y the molecular formula 17D

22) o is phenol prepared from

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i) hloroen=ene ii) (sopropyl en=ene iii) en=ene sulphonic

acid iv) aniline

23 ) Explain the folloing

i) -henol is more acidic than phenol

ii) onitrophenol is more acidic than ocresol

iii) pnitrophenol is less volatile than onitrophenol

24) Explain the folloing reactions of phenol

i) FoleBs reaction ii) iemer0iemann reaction

2$) ame the reagents used to convert phenol intoi) picric acid ii) 2lt4lt0riromophenol iii) en=ene iv) ophenol

sulphonic acid

2) What is the action of folloing reagents on phenol i)

romine in 2 at lo temperature

ii) ilute nitric acid at room temperature iii) oncentrated

sulphuric acid at room temperature

2+) Give distinguish test eteen phenol and ethanol

2) What are ethers o are ethers classied

25) What is metamerism Give the structure and (- name of

metamers of 2ampethoxypropane

37) Write the mechanism for acidic dehydration of ethanol

31) o is diethyl ether prepared y continuous ethericationprocess Why is the process so called

32) o ill you prepared methoxyethane from

i) l8yl halide ii) ia=omethane

33) tate the important uses of i) -henol ii) diethyl ether

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34) Write the mechanism of action of hydrogen romide on tert

utyl methyl ether

3$) Explain the folloing reactions of anisole

i) romination ii) itration iii) 6riedelrafts al8ylation iv)6riedelrafts acylation

3) Explainlt i) 0he OD group attached to aromatic ring in

phenols and ii) 0he al8oxy group in al8yl aryl ethers are ortholt

para directing and activate the aromatic ring toars electrophilic

sustitution

3+) Write the chemical eCuations for Williamson synthesis of 2

Ethoxy2methypentane starting from ethanol and 2ampethylpentan2ol

3) n organic compound ith the formula 417D3 shos

properties of ether and alcohol hen treated ith an excess of

r yields only one compound 1lt2 diromomethane Write

structural formula of ether and that of alcohol

ALDEHYDES ETONES AND CABO$YLIC

ACID

1) Write the structure and give (- names of the folloing

compounds

i) chloropropionaldehyde

ii) Rhydroxyutyraldehyde

iii) isoutyraldehyde

iv) Rmethylvaleraldehyde

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v) isopropyl methyl 8etone

vi) diisopropyl 8etone

vii) mromoen=aldehyde

viii) dien=yl 8etone

ix) divinyl 8etone

x) allyl methyl 8etone

xi) ethyl phenyl 8etone

xii) nutyrophenone

2) Write the structure of folloing compounds

i) 4ampethyl3nitroen=ophenone ii) 2ampethyl4oxopentanal iii)

3Dxopentanoic acid iv) 4chloropropiophenone v) 3

ampethoxyutanal vi) 4ydroxycyclohaxane caraldehyde

3) o ill you prepare i) propiophenone from propanenitrile ii)

4chloroen=aldehyde from 4chlorotoluene iii)

yclohaxanecaraldehyde from cyclohexylmethanol iv) 4

methoxyacetophenone from anisole v) 4methylen=aldehydefrom toluene

4) rrange the folloing compounds in the increasing order of

their oiling points

i) dimethyl etherlt ethyl alcohollt propanelt acetaldehyde

ii) acetonelt npropyl alcohollt ethyl methyl alcohol and nutane

$) What is the action of hydrogen cyanide in asic medium on i)utanone ii) 2lt4dichloroen=aldehyde

) What is the action of folloing compounds on cyclohexanone in

presence of dry hydrogen chloride

i) ethyl alcohol ii) ethylene glycol

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+) Write the structure of product in the folloing reactions

i) 322D3

ii) $2D3

) Write the structures of caronyl compounds and ammonia

derivatives that comine to give folloing imines

i)

ii)

iii)

iv)v)

vi)

5) Write the chemical eCuations for aldol condensation or

anni==aro reaction that folloing compounds undergo

i) -ropanal ii) 2ampethylpropanal iii) -entanal iv) 3

ampethylutanal v) cetophenonevi) pampethoxyen=aldehyde vii) 2ampethylcyclohaxanone viii)

chloral ix) yclopentanone

x) -henyl acetaldehyde xi) 1-henylpropan1one

17) Write the structure of the maKor product of the folloing

crossed aldol condensation

i) formaldehyde and propionaldehydeii) en=aldehyde ith acetone

11) (dentify the compounds SBlt SB and SB in the folloing

reactions and rerite the complete eCuations

i)

8112019 Chemistry Question 12sci (1)

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ii)

12)o ill you eect folloing tostep conversions

i) -ropanal into utanone ii) utanone into ut2ene iii)

en=ene into mromoacetophenone iv) ex3yne into exan

3one v) en=oic acid into mnitroen=ylalcohol

13) o ill you convert en=aldehyde into folloing compounds

ampore than one steps may e reCuired

i) en=ophenone ii) en=oic acid iii) 3-henylpropan1ol iv)hydroxyphenylacetic acid

14) Give a chemical test to distinguish eteen folloing pairs of

compounds

i) Ethanal and propanone ii) -rpopanal and propanone iii)

-entane2one and pentane3one

1$) Write the structure and (- names of folloing caroxylicacids

i) ltRdimethylutanoic acid ii) Rphenylutyric acid iii) 1038389

chloromethylvaleric acid

Page 19: Chemistry Question 12sci (1)

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2$ escrie the folloing types of electrodes giving one

examplelt ith reference to formulationlt electrode reaction and

ernst eCuation for electrode potential

a) metalsparingly salt electrode) gas electrode

2 What is redox electrode Give one example ith formulationlt

electrode reaction and ernst eCuation for electrode potential

2+ ene the terms oxidation potentiallt reduction potential and

cell potential

2 What conditions are reCuired for a cell potential to e calledstandard cell potential

25 6ormulate a cell for each of the folloing electrode reactions

a) n2H aC) H 2gl s) L n4H aC) H 2gs) H2l aC)

) ampg s) H r2l) L ampg2H aC) H 2r aC)

37 6ormulate a cell from the folloing electrode reactions

a) l2g) H 2e L 2l aC)

) 2( aC) L (2s) H 2e

31 What are standard electrode potential and standard emf of

the galvanic cell

32 Write ernst eCuation and explain the terms involved in it

What part of the eCuation represents the correction factor for

nonstandard state conditions

33 Write ernst eCuation for the folloing reactions

a) rs) H 36e3H aC) L r3H aC) H 36e2H aC)

) l3H aC) H 3e L l s)

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34 onsider the folloing E7 values and half reactions

(2s) H 2e L 2( aC) E7A7$3$M

u2H aC) H 2e L u s) E7A733+M

d2H aC) H 2e L ds) E7A77473

a) Which of the metals or nonmetals or ions is the strongest

oxidi=ing agent and hich is the strongest reducing agent

) 0he half reactions can e used to construct three galvanic

cells Which ill have the highest cell potential

3$ -redict hether

a) gH can oxidi=e - to -2H under standard state condition

) E7gA7+55M and E7

-A712M

3 -redict hether the folloing reactions occur under standard

state conditions

a) Dxidation of gs) y l2g) E7gA7Mlt E7

l2A13M

) eduction of 6e

3H

to 6e

2H

y us) E

7

6e3Hlt 6e2H A 7++MltE7uA14M

3+ 8etch and descrie the operation of

a) dry cell

) 2D2 fuel cell

3 What are the advantages and disadvantages of fuel cells

35 8etch lead storage cell

47 Write electrode reaction and overall cell reaction during the

operation of lead storage cell

41 Write electrode reaction and overall cell reaction hen lead

accumulator ehaves as an electrolytic cell

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42 o can ernst eCuation e used to sho that electrode

potential is eCual to the standard electrode potential y putting

approximate values in ernst eCuation se u2HNd half cell for

illustration

43 o are G7lt E7cell and eCuilirium constant related for a

particular reaction

44 Why is eCuilirium constant related to E7cell and not Ecell

4$ G7 for a redox reaction depends on the numer of electrons

transferred Explain

4 o does the eCuiliriumlt G7An6E7 explain that an

electrical potential is an intensive property

4+ Write shorthand notation for the cell for each of the folloing

reactions

a) u2H aC) H 2gs) H 2r L u s) H 2gr s)

) n2H aC) is oxidi=ed y r2 l)

4 rrange the folloing reducing agents in order of increasing

strength under standard state conditions 0he standard potentialsfor the reduction half reactions are given

gH aC) 7M)lt l3H aC) 1M)lt 62g) 2+M)lt l2g) 13M)lt

(2s) 7$4M)lt d2H aC) 74M)

45 rrange the folloing oxidi=ing agents in order of increasing

strength under standard state conditions 0he standard potentials

for the reduction half reactions are given

ls) 1M)lt l aC) 13M)lt us) 734M)lt 6es)744M)lt r

aC) 175M)lt is) 72M)

$7 Which species in each of the folloing pairs is etter oxidi=ing

agent under standard state conditions standard potential are

given) Give reasons for your anser

8112019 Chemistry Question 12sci (1)

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a) r2l) 175M) or u3H 14M)

) H aC) or gH aC) 7M)

c) -2H aC) 713M) or o2H 72M)

d) l2 g) 13M) or r3H 7+4M)

$1 Which species in each of the folloing pairs is etter reducing

agent under standard conditions E7 values are given Give

reasons for your anser

a) Fs) 2353M) or ampgs) 23M)

) o2H aC) 11M) or (n s) 714M)

c) e3H aC) 11M) or 0i2H73+M)

d) gl) 7M) or is) 723M)

PROBLEMS

1 conductivity cell lled ith 771amp Fl given at 2$o the

resistance of 74ohms 0he conductivity of Fl at 2$

o

is 7777

CHEMISTRY

d f O DF EEampE0

1) What are dloc8 elements

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2) What are floc8 elements

3) Explain the meaning of

i) 0ransition series ii) (nner transition element

4) Explain the position of the folloing in periodic tale

i) dloc8 elements ii) anthanoids iii) ctinoids

$) Explain the oxidation state of 1st ro elements of transition

series

) Explain the oxidation states of lanthanoids and actinoids

+) Why do lanthanoids form coloured compounds ) Explainlt most of the transition metal compounds are

remar8aly coloured

5) Why chromium has electronic conguration 3d$ 4s1 and not 3d4

4s2

17) Why does copper sho anormal electronic conguration

11) Explainlt the trends in atomic and ionic si=es of lanthanoidsand also of 1st ro elements of transition series

12) What are actinoids

13) What are transuranic elements Write their name

14) Why transition elements sho tendency to form large numer

of complexes

1$) Explain the compounds of copper ((() are coloured ut thoseof =inc are colourless

1) o is potassium dichromate prepared from chrome ion

1+) Write the preparationlt properties and use of potassium

permanganate

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1) Explainlt hy -t(M) complexes are generally octahedral hile

-t(() complexes are sCuare planar

15) ierentiate eteen lanthanoids and actinoids

27) What are chemical tins Give examples

21) Explain hy Gd3H is colourless

COORDINATION COMPOUNDS

1) What is the dierence eteen doule salt and coordinationcompounds

2) Explainlt hy 6e4)2 D4)22D) is a salt ut F 4P6e)Q is a

complex compound

3) Write the formula of the folloing complexes

i) alcium hexa cyano ferrate (()

ii) iammine dichloro platinum

iii) is ethylene diammine) dichloro iridium ((() ion

iv) -entamine caronato chromium ((() D(E

v) 0risethylene diammine ) coalt((() sulphate

vi) iamine ethylene diammine nic8el (() acetate

4) Write the rules hich are applied hile riting the formulas of

coordination compounds

$) ene the terms

i) entral metal atomgtion

ii) igand

8112019 Chemistry Question 12sci (1)

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iii) oordination compound

iv) oordination sphere

v) oordination numer

vi) oordination polyhedral

vii) omoleptic and heteroleptic complexes

viii) harge on the complexes

ix) oordination entity

) Write (- name of the folloing complexes

i) Pr2D)4 l2QD3

ii) P-ten)l4Q

iii) F 2Pi)4Q

iv) sP6el4Q

v) rl3-y)3

vi) F 3Po2D4)3Q

vii) Por2en)2Q

viii) P-tl4Q2

ix) Po2D))en)2Q2H

x) F 3Pl2D4)3Q

+) Explain the importance of principles of additive nomenclature

) (dentify the folloing ions y a simple test forming complex

compound

i) u2H ii) i2H iii) 6e3H iv) o2H

8112019 Chemistry Question 12sci (1)

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5) Dn the asis of WernerBs theory explainlt hy coalt amine

complexlt ol343 hen treated ith gD3 solution

precipitates only one ion even though there are three ions

17) alculate the eective atomic numer E) of the centralmetal atom in the folloing compounds

i) F 3P6e)Q ii) rD)

11) Write the postulates of WernerBs theory

12) Explain the onding in ol333 and ol3$3

13) Explain stereoisomerism in metal complexes ith coordination

numer 4 and 14) Why the tetrahedral complexes do not exhiit geometrical

isomerism

1$) ra cis and trans geometrical isomers of

i) dichlororomo iodo palladium (() ion

ii) P-t(()3)2l2Q

iii) Po((()3)l3Q

iv) Po((()3)42D)lQ2H

1) ra all possile geometrical isomers of P-t(M)

3)2-y)2l2Q2H ion

1+) Write oxidation statelt coordination numer and electronic

conguration of the metal atom in the folloing complexes

i) rl3-y)3 ii) F 4Pampn)Q

1) lassify the folloing ligands into monodentatelt polydentate

and amidentate

i) 3 ii) iii) iv) v) D2 vi) ethylene diammine

vii) oxalate

8112019 Chemistry Question 12sci (1)

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viii) triaminotriethylamine

15) ol3$32D is a pin8 solidlt the solution of this salt is also

pin8 and formed 3mol of gl ith silver nitrate solution Dn

heating pin8 solidlt it loses one ater molecule and forms purplesolid having same ratio of o3l as that of pin8 solid 0he

purple solid hen dissolved in ater and treated ith forms 1 mol

of gl ra the structure and name of the pin8 and purple

solids

27) ame the octahedral complex ions

i) Po2D4) en)2QH ii) transPr)4 3)2Q

21) ra the structures of the folloing complexes

i) Pol4Q2 ii) Pampn3)Q2H iii) P-tlQ iv) iD)4 v) Pi)4Q2

22) (n an octahedral crystal eldlt dra the gure to sho splitting

of dorital

23) What are ea8 eld and strong eld ligands What is spectro

chemical series

24) Pi)4Q2 is diamagnetic hile Pr3)Q3H is paramagnetltexplain

2$) Dn the asis of valence ond theory explain the nature of

onding in the folloing complexes

i) Po6Q3 ii) Po2D4)3Q3

2) lue coloured copper sulphate solution gave folloing

experimental results Explain the same

i) With aCueous potassium chloride it gave right green solution

ii) With aCueous potassium Juoride it gave a green precipitate

2+) ra the structures of optically active isomers of Poen)3Q3H

8112019 Chemistry Question 12sci (1)

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2) ra the geometrical and optical isomers of

i) Pol2en)2QH ii) Polen)23)Q2H

25) What is lin8age isomerism Explain ith an example

37) What are hydrate isomers Explain ith examples

31) Explain the structure of

i) upraammonium sulphate ii) Po3)Q3H

32) What are the limitations of valence ond theory

33) Explain the magnetic properties of coordination compounds

34) Write the salient features of crystal eld theory What are itslimitations

3$) Explain the octahedral geometry of complexes using crystal

eld theory

3) Write a note on colours in coordination compounds

3+) Explain the factors aecting the staility of coordination

compound3) Write rief the applications of coordination compounds

HALOGEN DERIVATIVES O ALANES AND ARENES

1) What are al8yl halides o are they classied

2) Write (- names of the folloing compounds

i)

ii) 2Al

8112019 Chemistry Question 12sci (1)

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iii)

iv)

v)

vi) secutyl chloride

vii) neopentyl romide

viii) tutyl iodide

ix) isopropyl romide

3) o is ethyl romide prepared from

i) Ethyl alcohol ii) ethane iii) ethane

4)Write the preparation of isopropyl chloride using the folloing

reagents

i) -l3 ii) -l$ iii) l2 iv) l v) Dl2

$) o is group replaced y folloing functional rroups

i) OD ii) O iii) O iv) O2

) Write a note on

i) andmeyerBs reaction ii) Wurt= reaction iii) 6in8elstein reaction

iv) 6ittig reaction v) 6riedel raft reaction

+) (dentify and in the folloing

8112019 Chemistry Question 12sci (1)

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) Give the structures of the folloing compounds

i) 3romo2methyl pentane ii) 2romo3ethyl hexane iii) 1

holo utane

iv) pichloroen=ene v) 1lt1lt10richloroethane

5) student has performed an experiment in the laoratory e

mixed ater ith hexane and found to layers separated econd

time he mixed chloroform ith ater and he again found to

layers in the test tue Explain hich ill e upper layer and

hich one ill e loer layer in oth the experiments

17) onvert 1hloroutane into the folloing compounds

i) utane1ol ii) 1(odoutane iii) 3222 iv)

11) 6or each pair of compoundslt state hich compound is etter

2 sustrate

i) 2romoutanelt isopropyl romide ii) 1(odo2lt2dimethyl

propane or isopropyl iodide

12) hoose the memer that ill react faster from the folloing

pairs y 1 mechanism

13) -redict the expected product of sustitution reaction

i) isoutyl chloride mH sodium ethoxide

ii) nutyl chloride H sodium

iii) 1hloro propane H aC potassium hydroxide

iv) aniline H aD2gt l

14) Write the products

i) $22A2 H r L

ii) $A2 H r

8112019 Chemistry Question 12sci (1)

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iii)

iv)

v)

1$) (dentify the chiral and achiral molecules

i)

ii)

iii)

1) iscuss 2 mechanism of methyl romide using aCueous

FD ra energy prole diagram1+) Write the mechanism of the reaction hen tutyl chloride is

treated ith aCueous FD ith energy prole diagram

1) ierentiate eteen 1 and 2 mechanism

15) Explain the nature of ond in

i) 322 ii)

27) What are uses of

i) 0 ii) (odoform iii) hloroform iv) aron tetrachloride

21) l8yl halides are polar and miscile ith aterlt explain

22) Which one of the folloing is more easily hydrolysed y

aCueous FD

$l$ and $2l

23) rrange the folloing groups in descending order 2lt D3lt

D3lt DD and l

24) ssign or conguration to each of the folloing

structures

8112019 Chemistry Question 12sci (1)

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i)

ii)

iii)

iv)

DDlt -ED E0E

1) What are alcohols o are they classied

2) What are monohydric alcohols o are they classied

4) Write the structures of folloing alcohols

i) 1Ethylcyclohexanol ii) ex3en2ol iii)yclohex2en1ol

iv) -entane1lt4diol

v) 2lt4imethylhexane1lt3lt$triol

$) Explain the folloing

i) -ropan1ol has higher oiling point than nutane

ii) ampethanol is more solule in ater than -ropan1ol

) Write the mechanism of hydration of ethylene to ethyl alcohol

+) -ropan1ol can not e prepared y acid catalyst hydration of

propenelt then ho is propene converted into propan1ol

)5) o is propanone converted into

i) -ropan2ol ii) 2ampethyl propan2ol

17) o ill you otain utan2ol from

8112019 Chemistry Question 12sci (1)

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i) -ropanal ii) utan2one iii) ut2ene

11) o is propan1ol prepared from

i) -ropanal ii) -ropanoic acid

12) o is cyclopentanol prepared from

i) yclopentanone ii) yclopentene

14) Write the mechanism of acid catalysed dehydration of ethanol

to give ethane

1$) Write the structure of aldehyde lt caroxylic acid and ester

that yield folloing alcohol

1+) o ill you prepare

i) 2ampethylutane1ol from an al8ene

ii) cyclohexylmethanol from a Grignard reagent

iii) 1phenylethanol from acetaldehyde

1) o are folloing conversions rought aout

i) en=yl chloride to en=yl alcohol

ii) en=yl alcohol to en=oic acid

iii) 1Ethylcyclohexanol from yclohexanone

15) What are phenols o are they classied

27)21) Give the structures and (- names of isomeric phenols

represented y the molecular formula 17D

22) o is phenol prepared from

8112019 Chemistry Question 12sci (1)

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i) hloroen=ene ii) (sopropyl en=ene iii) en=ene sulphonic

acid iv) aniline

23 ) Explain the folloing

i) -henol is more acidic than phenol

ii) onitrophenol is more acidic than ocresol

iii) pnitrophenol is less volatile than onitrophenol

24) Explain the folloing reactions of phenol

i) FoleBs reaction ii) iemer0iemann reaction

2$) ame the reagents used to convert phenol intoi) picric acid ii) 2lt4lt0riromophenol iii) en=ene iv) ophenol

sulphonic acid

2) What is the action of folloing reagents on phenol i)

romine in 2 at lo temperature

ii) ilute nitric acid at room temperature iii) oncentrated

sulphuric acid at room temperature

2+) Give distinguish test eteen phenol and ethanol

2) What are ethers o are ethers classied

25) What is metamerism Give the structure and (- name of

metamers of 2ampethoxypropane

37) Write the mechanism for acidic dehydration of ethanol

31) o is diethyl ether prepared y continuous ethericationprocess Why is the process so called

32) o ill you prepared methoxyethane from

i) l8yl halide ii) ia=omethane

33) tate the important uses of i) -henol ii) diethyl ether

8112019 Chemistry Question 12sci (1)

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34) Write the mechanism of action of hydrogen romide on tert

utyl methyl ether

3$) Explain the folloing reactions of anisole

i) romination ii) itration iii) 6riedelrafts al8ylation iv)6riedelrafts acylation

3) Explainlt i) 0he OD group attached to aromatic ring in

phenols and ii) 0he al8oxy group in al8yl aryl ethers are ortholt

para directing and activate the aromatic ring toars electrophilic

sustitution

3+) Write the chemical eCuations for Williamson synthesis of 2

Ethoxy2methypentane starting from ethanol and 2ampethylpentan2ol

3) n organic compound ith the formula 417D3 shos

properties of ether and alcohol hen treated ith an excess of

r yields only one compound 1lt2 diromomethane Write

structural formula of ether and that of alcohol

ALDEHYDES ETONES AND CABO$YLIC

ACID

1) Write the structure and give (- names of the folloing

compounds

i) chloropropionaldehyde

ii) Rhydroxyutyraldehyde

iii) isoutyraldehyde

iv) Rmethylvaleraldehyde

8112019 Chemistry Question 12sci (1)

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v) isopropyl methyl 8etone

vi) diisopropyl 8etone

vii) mromoen=aldehyde

viii) dien=yl 8etone

ix) divinyl 8etone

x) allyl methyl 8etone

xi) ethyl phenyl 8etone

xii) nutyrophenone

2) Write the structure of folloing compounds

i) 4ampethyl3nitroen=ophenone ii) 2ampethyl4oxopentanal iii)

3Dxopentanoic acid iv) 4chloropropiophenone v) 3

ampethoxyutanal vi) 4ydroxycyclohaxane caraldehyde

3) o ill you prepare i) propiophenone from propanenitrile ii)

4chloroen=aldehyde from 4chlorotoluene iii)

yclohaxanecaraldehyde from cyclohexylmethanol iv) 4

methoxyacetophenone from anisole v) 4methylen=aldehydefrom toluene

4) rrange the folloing compounds in the increasing order of

their oiling points

i) dimethyl etherlt ethyl alcohollt propanelt acetaldehyde

ii) acetonelt npropyl alcohollt ethyl methyl alcohol and nutane

$) What is the action of hydrogen cyanide in asic medium on i)utanone ii) 2lt4dichloroen=aldehyde

) What is the action of folloing compounds on cyclohexanone in

presence of dry hydrogen chloride

i) ethyl alcohol ii) ethylene glycol

8112019 Chemistry Question 12sci (1)

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+) Write the structure of product in the folloing reactions

i) 322D3

ii) $2D3

) Write the structures of caronyl compounds and ammonia

derivatives that comine to give folloing imines

i)

ii)

iii)

iv)v)

vi)

5) Write the chemical eCuations for aldol condensation or

anni==aro reaction that folloing compounds undergo

i) -ropanal ii) 2ampethylpropanal iii) -entanal iv) 3

ampethylutanal v) cetophenonevi) pampethoxyen=aldehyde vii) 2ampethylcyclohaxanone viii)

chloral ix) yclopentanone

x) -henyl acetaldehyde xi) 1-henylpropan1one

17) Write the structure of the maKor product of the folloing

crossed aldol condensation

i) formaldehyde and propionaldehydeii) en=aldehyde ith acetone

11) (dentify the compounds SBlt SB and SB in the folloing

reactions and rerite the complete eCuations

i)

8112019 Chemistry Question 12sci (1)

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ii)

12)o ill you eect folloing tostep conversions

i) -ropanal into utanone ii) utanone into ut2ene iii)

en=ene into mromoacetophenone iv) ex3yne into exan

3one v) en=oic acid into mnitroen=ylalcohol

13) o ill you convert en=aldehyde into folloing compounds

ampore than one steps may e reCuired

i) en=ophenone ii) en=oic acid iii) 3-henylpropan1ol iv)hydroxyphenylacetic acid

14) Give a chemical test to distinguish eteen folloing pairs of

compounds

i) Ethanal and propanone ii) -rpopanal and propanone iii)

-entane2one and pentane3one

1$) Write the structure and (- names of folloing caroxylicacids

i) ltRdimethylutanoic acid ii) Rphenylutyric acid iii) 1038389

chloromethylvaleric acid

Page 20: Chemistry Question 12sci (1)

8112019 Chemistry Question 12sci (1)

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34 onsider the folloing E7 values and half reactions

(2s) H 2e L 2( aC) E7A7$3$M

u2H aC) H 2e L u s) E7A733+M

d2H aC) H 2e L ds) E7A77473

a) Which of the metals or nonmetals or ions is the strongest

oxidi=ing agent and hich is the strongest reducing agent

) 0he half reactions can e used to construct three galvanic

cells Which ill have the highest cell potential

3$ -redict hether

a) gH can oxidi=e - to -2H under standard state condition

) E7gA7+55M and E7

-A712M

3 -redict hether the folloing reactions occur under standard

state conditions

a) Dxidation of gs) y l2g) E7gA7Mlt E7

l2A13M

) eduction of 6e

3H

to 6e

2H

y us) E

7

6e3Hlt 6e2H A 7++MltE7uA14M

3+ 8etch and descrie the operation of

a) dry cell

) 2D2 fuel cell

3 What are the advantages and disadvantages of fuel cells

35 8etch lead storage cell

47 Write electrode reaction and overall cell reaction during the

operation of lead storage cell

41 Write electrode reaction and overall cell reaction hen lead

accumulator ehaves as an electrolytic cell

8112019 Chemistry Question 12sci (1)

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42 o can ernst eCuation e used to sho that electrode

potential is eCual to the standard electrode potential y putting

approximate values in ernst eCuation se u2HNd half cell for

illustration

43 o are G7lt E7cell and eCuilirium constant related for a

particular reaction

44 Why is eCuilirium constant related to E7cell and not Ecell

4$ G7 for a redox reaction depends on the numer of electrons

transferred Explain

4 o does the eCuiliriumlt G7An6E7 explain that an

electrical potential is an intensive property

4+ Write shorthand notation for the cell for each of the folloing

reactions

a) u2H aC) H 2gs) H 2r L u s) H 2gr s)

) n2H aC) is oxidi=ed y r2 l)

4 rrange the folloing reducing agents in order of increasing

strength under standard state conditions 0he standard potentialsfor the reduction half reactions are given

gH aC) 7M)lt l3H aC) 1M)lt 62g) 2+M)lt l2g) 13M)lt

(2s) 7$4M)lt d2H aC) 74M)

45 rrange the folloing oxidi=ing agents in order of increasing

strength under standard state conditions 0he standard potentials

for the reduction half reactions are given

ls) 1M)lt l aC) 13M)lt us) 734M)lt 6es)744M)lt r

aC) 175M)lt is) 72M)

$7 Which species in each of the folloing pairs is etter oxidi=ing

agent under standard state conditions standard potential are

given) Give reasons for your anser

8112019 Chemistry Question 12sci (1)

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a) r2l) 175M) or u3H 14M)

) H aC) or gH aC) 7M)

c) -2H aC) 713M) or o2H 72M)

d) l2 g) 13M) or r3H 7+4M)

$1 Which species in each of the folloing pairs is etter reducing

agent under standard conditions E7 values are given Give

reasons for your anser

a) Fs) 2353M) or ampgs) 23M)

) o2H aC) 11M) or (n s) 714M)

c) e3H aC) 11M) or 0i2H73+M)

d) gl) 7M) or is) 723M)

PROBLEMS

1 conductivity cell lled ith 771amp Fl given at 2$o the

resistance of 74ohms 0he conductivity of Fl at 2$

o

is 7777

CHEMISTRY

d f O DF EEampE0

1) What are dloc8 elements

8112019 Chemistry Question 12sci (1)

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2) What are floc8 elements

3) Explain the meaning of

i) 0ransition series ii) (nner transition element

4) Explain the position of the folloing in periodic tale

i) dloc8 elements ii) anthanoids iii) ctinoids

$) Explain the oxidation state of 1st ro elements of transition

series

) Explain the oxidation states of lanthanoids and actinoids

+) Why do lanthanoids form coloured compounds ) Explainlt most of the transition metal compounds are

remar8aly coloured

5) Why chromium has electronic conguration 3d$ 4s1 and not 3d4

4s2

17) Why does copper sho anormal electronic conguration

11) Explainlt the trends in atomic and ionic si=es of lanthanoidsand also of 1st ro elements of transition series

12) What are actinoids

13) What are transuranic elements Write their name

14) Why transition elements sho tendency to form large numer

of complexes

1$) Explain the compounds of copper ((() are coloured ut thoseof =inc are colourless

1) o is potassium dichromate prepared from chrome ion

1+) Write the preparationlt properties and use of potassium

permanganate

8112019 Chemistry Question 12sci (1)

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1) Explainlt hy -t(M) complexes are generally octahedral hile

-t(() complexes are sCuare planar

15) ierentiate eteen lanthanoids and actinoids

27) What are chemical tins Give examples

21) Explain hy Gd3H is colourless

COORDINATION COMPOUNDS

1) What is the dierence eteen doule salt and coordinationcompounds

2) Explainlt hy 6e4)2 D4)22D) is a salt ut F 4P6e)Q is a

complex compound

3) Write the formula of the folloing complexes

i) alcium hexa cyano ferrate (()

ii) iammine dichloro platinum

iii) is ethylene diammine) dichloro iridium ((() ion

iv) -entamine caronato chromium ((() D(E

v) 0risethylene diammine ) coalt((() sulphate

vi) iamine ethylene diammine nic8el (() acetate

4) Write the rules hich are applied hile riting the formulas of

coordination compounds

$) ene the terms

i) entral metal atomgtion

ii) igand

8112019 Chemistry Question 12sci (1)

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iii) oordination compound

iv) oordination sphere

v) oordination numer

vi) oordination polyhedral

vii) omoleptic and heteroleptic complexes

viii) harge on the complexes

ix) oordination entity

) Write (- name of the folloing complexes

i) Pr2D)4 l2QD3

ii) P-ten)l4Q

iii) F 2Pi)4Q

iv) sP6el4Q

v) rl3-y)3

vi) F 3Po2D4)3Q

vii) Por2en)2Q

viii) P-tl4Q2

ix) Po2D))en)2Q2H

x) F 3Pl2D4)3Q

+) Explain the importance of principles of additive nomenclature

) (dentify the folloing ions y a simple test forming complex

compound

i) u2H ii) i2H iii) 6e3H iv) o2H

8112019 Chemistry Question 12sci (1)

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5) Dn the asis of WernerBs theory explainlt hy coalt amine

complexlt ol343 hen treated ith gD3 solution

precipitates only one ion even though there are three ions

17) alculate the eective atomic numer E) of the centralmetal atom in the folloing compounds

i) F 3P6e)Q ii) rD)

11) Write the postulates of WernerBs theory

12) Explain the onding in ol333 and ol3$3

13) Explain stereoisomerism in metal complexes ith coordination

numer 4 and 14) Why the tetrahedral complexes do not exhiit geometrical

isomerism

1$) ra cis and trans geometrical isomers of

i) dichlororomo iodo palladium (() ion

ii) P-t(()3)2l2Q

iii) Po((()3)l3Q

iv) Po((()3)42D)lQ2H

1) ra all possile geometrical isomers of P-t(M)

3)2-y)2l2Q2H ion

1+) Write oxidation statelt coordination numer and electronic

conguration of the metal atom in the folloing complexes

i) rl3-y)3 ii) F 4Pampn)Q

1) lassify the folloing ligands into monodentatelt polydentate

and amidentate

i) 3 ii) iii) iv) v) D2 vi) ethylene diammine

vii) oxalate

8112019 Chemistry Question 12sci (1)

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viii) triaminotriethylamine

15) ol3$32D is a pin8 solidlt the solution of this salt is also

pin8 and formed 3mol of gl ith silver nitrate solution Dn

heating pin8 solidlt it loses one ater molecule and forms purplesolid having same ratio of o3l as that of pin8 solid 0he

purple solid hen dissolved in ater and treated ith forms 1 mol

of gl ra the structure and name of the pin8 and purple

solids

27) ame the octahedral complex ions

i) Po2D4) en)2QH ii) transPr)4 3)2Q

21) ra the structures of the folloing complexes

i) Pol4Q2 ii) Pampn3)Q2H iii) P-tlQ iv) iD)4 v) Pi)4Q2

22) (n an octahedral crystal eldlt dra the gure to sho splitting

of dorital

23) What are ea8 eld and strong eld ligands What is spectro

chemical series

24) Pi)4Q2 is diamagnetic hile Pr3)Q3H is paramagnetltexplain

2$) Dn the asis of valence ond theory explain the nature of

onding in the folloing complexes

i) Po6Q3 ii) Po2D4)3Q3

2) lue coloured copper sulphate solution gave folloing

experimental results Explain the same

i) With aCueous potassium chloride it gave right green solution

ii) With aCueous potassium Juoride it gave a green precipitate

2+) ra the structures of optically active isomers of Poen)3Q3H

8112019 Chemistry Question 12sci (1)

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2) ra the geometrical and optical isomers of

i) Pol2en)2QH ii) Polen)23)Q2H

25) What is lin8age isomerism Explain ith an example

37) What are hydrate isomers Explain ith examples

31) Explain the structure of

i) upraammonium sulphate ii) Po3)Q3H

32) What are the limitations of valence ond theory

33) Explain the magnetic properties of coordination compounds

34) Write the salient features of crystal eld theory What are itslimitations

3$) Explain the octahedral geometry of complexes using crystal

eld theory

3) Write a note on colours in coordination compounds

3+) Explain the factors aecting the staility of coordination

compound3) Write rief the applications of coordination compounds

HALOGEN DERIVATIVES O ALANES AND ARENES

1) What are al8yl halides o are they classied

2) Write (- names of the folloing compounds

i)

ii) 2Al

8112019 Chemistry Question 12sci (1)

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iii)

iv)

v)

vi) secutyl chloride

vii) neopentyl romide

viii) tutyl iodide

ix) isopropyl romide

3) o is ethyl romide prepared from

i) Ethyl alcohol ii) ethane iii) ethane

4)Write the preparation of isopropyl chloride using the folloing

reagents

i) -l3 ii) -l$ iii) l2 iv) l v) Dl2

$) o is group replaced y folloing functional rroups

i) OD ii) O iii) O iv) O2

) Write a note on

i) andmeyerBs reaction ii) Wurt= reaction iii) 6in8elstein reaction

iv) 6ittig reaction v) 6riedel raft reaction

+) (dentify and in the folloing

8112019 Chemistry Question 12sci (1)

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) Give the structures of the folloing compounds

i) 3romo2methyl pentane ii) 2romo3ethyl hexane iii) 1

holo utane

iv) pichloroen=ene v) 1lt1lt10richloroethane

5) student has performed an experiment in the laoratory e

mixed ater ith hexane and found to layers separated econd

time he mixed chloroform ith ater and he again found to

layers in the test tue Explain hich ill e upper layer and

hich one ill e loer layer in oth the experiments

17) onvert 1hloroutane into the folloing compounds

i) utane1ol ii) 1(odoutane iii) 3222 iv)

11) 6or each pair of compoundslt state hich compound is etter

2 sustrate

i) 2romoutanelt isopropyl romide ii) 1(odo2lt2dimethyl

propane or isopropyl iodide

12) hoose the memer that ill react faster from the folloing

pairs y 1 mechanism

13) -redict the expected product of sustitution reaction

i) isoutyl chloride mH sodium ethoxide

ii) nutyl chloride H sodium

iii) 1hloro propane H aC potassium hydroxide

iv) aniline H aD2gt l

14) Write the products

i) $22A2 H r L

ii) $A2 H r

8112019 Chemistry Question 12sci (1)

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iii)

iv)

v)

1$) (dentify the chiral and achiral molecules

i)

ii)

iii)

1) iscuss 2 mechanism of methyl romide using aCueous

FD ra energy prole diagram1+) Write the mechanism of the reaction hen tutyl chloride is

treated ith aCueous FD ith energy prole diagram

1) ierentiate eteen 1 and 2 mechanism

15) Explain the nature of ond in

i) 322 ii)

27) What are uses of

i) 0 ii) (odoform iii) hloroform iv) aron tetrachloride

21) l8yl halides are polar and miscile ith aterlt explain

22) Which one of the folloing is more easily hydrolysed y

aCueous FD

$l$ and $2l

23) rrange the folloing groups in descending order 2lt D3lt

D3lt DD and l

24) ssign or conguration to each of the folloing

structures

8112019 Chemistry Question 12sci (1)

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i)

ii)

iii)

iv)

DDlt -ED E0E

1) What are alcohols o are they classied

2) What are monohydric alcohols o are they classied

4) Write the structures of folloing alcohols

i) 1Ethylcyclohexanol ii) ex3en2ol iii)yclohex2en1ol

iv) -entane1lt4diol

v) 2lt4imethylhexane1lt3lt$triol

$) Explain the folloing

i) -ropan1ol has higher oiling point than nutane

ii) ampethanol is more solule in ater than -ropan1ol

) Write the mechanism of hydration of ethylene to ethyl alcohol

+) -ropan1ol can not e prepared y acid catalyst hydration of

propenelt then ho is propene converted into propan1ol

)5) o is propanone converted into

i) -ropan2ol ii) 2ampethyl propan2ol

17) o ill you otain utan2ol from

8112019 Chemistry Question 12sci (1)

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i) -ropanal ii) utan2one iii) ut2ene

11) o is propan1ol prepared from

i) -ropanal ii) -ropanoic acid

12) o is cyclopentanol prepared from

i) yclopentanone ii) yclopentene

14) Write the mechanism of acid catalysed dehydration of ethanol

to give ethane

1$) Write the structure of aldehyde lt caroxylic acid and ester

that yield folloing alcohol

1+) o ill you prepare

i) 2ampethylutane1ol from an al8ene

ii) cyclohexylmethanol from a Grignard reagent

iii) 1phenylethanol from acetaldehyde

1) o are folloing conversions rought aout

i) en=yl chloride to en=yl alcohol

ii) en=yl alcohol to en=oic acid

iii) 1Ethylcyclohexanol from yclohexanone

15) What are phenols o are they classied

27)21) Give the structures and (- names of isomeric phenols

represented y the molecular formula 17D

22) o is phenol prepared from

8112019 Chemistry Question 12sci (1)

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i) hloroen=ene ii) (sopropyl en=ene iii) en=ene sulphonic

acid iv) aniline

23 ) Explain the folloing

i) -henol is more acidic than phenol

ii) onitrophenol is more acidic than ocresol

iii) pnitrophenol is less volatile than onitrophenol

24) Explain the folloing reactions of phenol

i) FoleBs reaction ii) iemer0iemann reaction

2$) ame the reagents used to convert phenol intoi) picric acid ii) 2lt4lt0riromophenol iii) en=ene iv) ophenol

sulphonic acid

2) What is the action of folloing reagents on phenol i)

romine in 2 at lo temperature

ii) ilute nitric acid at room temperature iii) oncentrated

sulphuric acid at room temperature

2+) Give distinguish test eteen phenol and ethanol

2) What are ethers o are ethers classied

25) What is metamerism Give the structure and (- name of

metamers of 2ampethoxypropane

37) Write the mechanism for acidic dehydration of ethanol

31) o is diethyl ether prepared y continuous ethericationprocess Why is the process so called

32) o ill you prepared methoxyethane from

i) l8yl halide ii) ia=omethane

33) tate the important uses of i) -henol ii) diethyl ether

8112019 Chemistry Question 12sci (1)

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34) Write the mechanism of action of hydrogen romide on tert

utyl methyl ether

3$) Explain the folloing reactions of anisole

i) romination ii) itration iii) 6riedelrafts al8ylation iv)6riedelrafts acylation

3) Explainlt i) 0he OD group attached to aromatic ring in

phenols and ii) 0he al8oxy group in al8yl aryl ethers are ortholt

para directing and activate the aromatic ring toars electrophilic

sustitution

3+) Write the chemical eCuations for Williamson synthesis of 2

Ethoxy2methypentane starting from ethanol and 2ampethylpentan2ol

3) n organic compound ith the formula 417D3 shos

properties of ether and alcohol hen treated ith an excess of

r yields only one compound 1lt2 diromomethane Write

structural formula of ether and that of alcohol

ALDEHYDES ETONES AND CABO$YLIC

ACID

1) Write the structure and give (- names of the folloing

compounds

i) chloropropionaldehyde

ii) Rhydroxyutyraldehyde

iii) isoutyraldehyde

iv) Rmethylvaleraldehyde

8112019 Chemistry Question 12sci (1)

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v) isopropyl methyl 8etone

vi) diisopropyl 8etone

vii) mromoen=aldehyde

viii) dien=yl 8etone

ix) divinyl 8etone

x) allyl methyl 8etone

xi) ethyl phenyl 8etone

xii) nutyrophenone

2) Write the structure of folloing compounds

i) 4ampethyl3nitroen=ophenone ii) 2ampethyl4oxopentanal iii)

3Dxopentanoic acid iv) 4chloropropiophenone v) 3

ampethoxyutanal vi) 4ydroxycyclohaxane caraldehyde

3) o ill you prepare i) propiophenone from propanenitrile ii)

4chloroen=aldehyde from 4chlorotoluene iii)

yclohaxanecaraldehyde from cyclohexylmethanol iv) 4

methoxyacetophenone from anisole v) 4methylen=aldehydefrom toluene

4) rrange the folloing compounds in the increasing order of

their oiling points

i) dimethyl etherlt ethyl alcohollt propanelt acetaldehyde

ii) acetonelt npropyl alcohollt ethyl methyl alcohol and nutane

$) What is the action of hydrogen cyanide in asic medium on i)utanone ii) 2lt4dichloroen=aldehyde

) What is the action of folloing compounds on cyclohexanone in

presence of dry hydrogen chloride

i) ethyl alcohol ii) ethylene glycol

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 3738

+) Write the structure of product in the folloing reactions

i) 322D3

ii) $2D3

) Write the structures of caronyl compounds and ammonia

derivatives that comine to give folloing imines

i)

ii)

iii)

iv)v)

vi)

5) Write the chemical eCuations for aldol condensation or

anni==aro reaction that folloing compounds undergo

i) -ropanal ii) 2ampethylpropanal iii) -entanal iv) 3

ampethylutanal v) cetophenonevi) pampethoxyen=aldehyde vii) 2ampethylcyclohaxanone viii)

chloral ix) yclopentanone

x) -henyl acetaldehyde xi) 1-henylpropan1one

17) Write the structure of the maKor product of the folloing

crossed aldol condensation

i) formaldehyde and propionaldehydeii) en=aldehyde ith acetone

11) (dentify the compounds SBlt SB and SB in the folloing

reactions and rerite the complete eCuations

i)

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 3838

ii)

12)o ill you eect folloing tostep conversions

i) -ropanal into utanone ii) utanone into ut2ene iii)

en=ene into mromoacetophenone iv) ex3yne into exan

3one v) en=oic acid into mnitroen=ylalcohol

13) o ill you convert en=aldehyde into folloing compounds

ampore than one steps may e reCuired

i) en=ophenone ii) en=oic acid iii) 3-henylpropan1ol iv)hydroxyphenylacetic acid

14) Give a chemical test to distinguish eteen folloing pairs of

compounds

i) Ethanal and propanone ii) -rpopanal and propanone iii)

-entane2one and pentane3one

1$) Write the structure and (- names of folloing caroxylicacids

i) ltRdimethylutanoic acid ii) Rphenylutyric acid iii) 1038389

chloromethylvaleric acid

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8112019 Chemistry Question 12sci (1)

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42 o can ernst eCuation e used to sho that electrode

potential is eCual to the standard electrode potential y putting

approximate values in ernst eCuation se u2HNd half cell for

illustration

43 o are G7lt E7cell and eCuilirium constant related for a

particular reaction

44 Why is eCuilirium constant related to E7cell and not Ecell

4$ G7 for a redox reaction depends on the numer of electrons

transferred Explain

4 o does the eCuiliriumlt G7An6E7 explain that an

electrical potential is an intensive property

4+ Write shorthand notation for the cell for each of the folloing

reactions

a) u2H aC) H 2gs) H 2r L u s) H 2gr s)

) n2H aC) is oxidi=ed y r2 l)

4 rrange the folloing reducing agents in order of increasing

strength under standard state conditions 0he standard potentialsfor the reduction half reactions are given

gH aC) 7M)lt l3H aC) 1M)lt 62g) 2+M)lt l2g) 13M)lt

(2s) 7$4M)lt d2H aC) 74M)

45 rrange the folloing oxidi=ing agents in order of increasing

strength under standard state conditions 0he standard potentials

for the reduction half reactions are given

ls) 1M)lt l aC) 13M)lt us) 734M)lt 6es)744M)lt r

aC) 175M)lt is) 72M)

$7 Which species in each of the folloing pairs is etter oxidi=ing

agent under standard state conditions standard potential are

given) Give reasons for your anser

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 2238

a) r2l) 175M) or u3H 14M)

) H aC) or gH aC) 7M)

c) -2H aC) 713M) or o2H 72M)

d) l2 g) 13M) or r3H 7+4M)

$1 Which species in each of the folloing pairs is etter reducing

agent under standard conditions E7 values are given Give

reasons for your anser

a) Fs) 2353M) or ampgs) 23M)

) o2H aC) 11M) or (n s) 714M)

c) e3H aC) 11M) or 0i2H73+M)

d) gl) 7M) or is) 723M)

PROBLEMS

1 conductivity cell lled ith 771amp Fl given at 2$o the

resistance of 74ohms 0he conductivity of Fl at 2$

o

is 7777

CHEMISTRY

d f O DF EEampE0

1) What are dloc8 elements

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 2338

2) What are floc8 elements

3) Explain the meaning of

i) 0ransition series ii) (nner transition element

4) Explain the position of the folloing in periodic tale

i) dloc8 elements ii) anthanoids iii) ctinoids

$) Explain the oxidation state of 1st ro elements of transition

series

) Explain the oxidation states of lanthanoids and actinoids

+) Why do lanthanoids form coloured compounds ) Explainlt most of the transition metal compounds are

remar8aly coloured

5) Why chromium has electronic conguration 3d$ 4s1 and not 3d4

4s2

17) Why does copper sho anormal electronic conguration

11) Explainlt the trends in atomic and ionic si=es of lanthanoidsand also of 1st ro elements of transition series

12) What are actinoids

13) What are transuranic elements Write their name

14) Why transition elements sho tendency to form large numer

of complexes

1$) Explain the compounds of copper ((() are coloured ut thoseof =inc are colourless

1) o is potassium dichromate prepared from chrome ion

1+) Write the preparationlt properties and use of potassium

permanganate

8112019 Chemistry Question 12sci (1)

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1) Explainlt hy -t(M) complexes are generally octahedral hile

-t(() complexes are sCuare planar

15) ierentiate eteen lanthanoids and actinoids

27) What are chemical tins Give examples

21) Explain hy Gd3H is colourless

COORDINATION COMPOUNDS

1) What is the dierence eteen doule salt and coordinationcompounds

2) Explainlt hy 6e4)2 D4)22D) is a salt ut F 4P6e)Q is a

complex compound

3) Write the formula of the folloing complexes

i) alcium hexa cyano ferrate (()

ii) iammine dichloro platinum

iii) is ethylene diammine) dichloro iridium ((() ion

iv) -entamine caronato chromium ((() D(E

v) 0risethylene diammine ) coalt((() sulphate

vi) iamine ethylene diammine nic8el (() acetate

4) Write the rules hich are applied hile riting the formulas of

coordination compounds

$) ene the terms

i) entral metal atomgtion

ii) igand

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 2538

iii) oordination compound

iv) oordination sphere

v) oordination numer

vi) oordination polyhedral

vii) omoleptic and heteroleptic complexes

viii) harge on the complexes

ix) oordination entity

) Write (- name of the folloing complexes

i) Pr2D)4 l2QD3

ii) P-ten)l4Q

iii) F 2Pi)4Q

iv) sP6el4Q

v) rl3-y)3

vi) F 3Po2D4)3Q

vii) Por2en)2Q

viii) P-tl4Q2

ix) Po2D))en)2Q2H

x) F 3Pl2D4)3Q

+) Explain the importance of principles of additive nomenclature

) (dentify the folloing ions y a simple test forming complex

compound

i) u2H ii) i2H iii) 6e3H iv) o2H

8112019 Chemistry Question 12sci (1)

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5) Dn the asis of WernerBs theory explainlt hy coalt amine

complexlt ol343 hen treated ith gD3 solution

precipitates only one ion even though there are three ions

17) alculate the eective atomic numer E) of the centralmetal atom in the folloing compounds

i) F 3P6e)Q ii) rD)

11) Write the postulates of WernerBs theory

12) Explain the onding in ol333 and ol3$3

13) Explain stereoisomerism in metal complexes ith coordination

numer 4 and 14) Why the tetrahedral complexes do not exhiit geometrical

isomerism

1$) ra cis and trans geometrical isomers of

i) dichlororomo iodo palladium (() ion

ii) P-t(()3)2l2Q

iii) Po((()3)l3Q

iv) Po((()3)42D)lQ2H

1) ra all possile geometrical isomers of P-t(M)

3)2-y)2l2Q2H ion

1+) Write oxidation statelt coordination numer and electronic

conguration of the metal atom in the folloing complexes

i) rl3-y)3 ii) F 4Pampn)Q

1) lassify the folloing ligands into monodentatelt polydentate

and amidentate

i) 3 ii) iii) iv) v) D2 vi) ethylene diammine

vii) oxalate

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 2738

viii) triaminotriethylamine

15) ol3$32D is a pin8 solidlt the solution of this salt is also

pin8 and formed 3mol of gl ith silver nitrate solution Dn

heating pin8 solidlt it loses one ater molecule and forms purplesolid having same ratio of o3l as that of pin8 solid 0he

purple solid hen dissolved in ater and treated ith forms 1 mol

of gl ra the structure and name of the pin8 and purple

solids

27) ame the octahedral complex ions

i) Po2D4) en)2QH ii) transPr)4 3)2Q

21) ra the structures of the folloing complexes

i) Pol4Q2 ii) Pampn3)Q2H iii) P-tlQ iv) iD)4 v) Pi)4Q2

22) (n an octahedral crystal eldlt dra the gure to sho splitting

of dorital

23) What are ea8 eld and strong eld ligands What is spectro

chemical series

24) Pi)4Q2 is diamagnetic hile Pr3)Q3H is paramagnetltexplain

2$) Dn the asis of valence ond theory explain the nature of

onding in the folloing complexes

i) Po6Q3 ii) Po2D4)3Q3

2) lue coloured copper sulphate solution gave folloing

experimental results Explain the same

i) With aCueous potassium chloride it gave right green solution

ii) With aCueous potassium Juoride it gave a green precipitate

2+) ra the structures of optically active isomers of Poen)3Q3H

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 2838

2) ra the geometrical and optical isomers of

i) Pol2en)2QH ii) Polen)23)Q2H

25) What is lin8age isomerism Explain ith an example

37) What are hydrate isomers Explain ith examples

31) Explain the structure of

i) upraammonium sulphate ii) Po3)Q3H

32) What are the limitations of valence ond theory

33) Explain the magnetic properties of coordination compounds

34) Write the salient features of crystal eld theory What are itslimitations

3$) Explain the octahedral geometry of complexes using crystal

eld theory

3) Write a note on colours in coordination compounds

3+) Explain the factors aecting the staility of coordination

compound3) Write rief the applications of coordination compounds

HALOGEN DERIVATIVES O ALANES AND ARENES

1) What are al8yl halides o are they classied

2) Write (- names of the folloing compounds

i)

ii) 2Al

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 2938

iii)

iv)

v)

vi) secutyl chloride

vii) neopentyl romide

viii) tutyl iodide

ix) isopropyl romide

3) o is ethyl romide prepared from

i) Ethyl alcohol ii) ethane iii) ethane

4)Write the preparation of isopropyl chloride using the folloing

reagents

i) -l3 ii) -l$ iii) l2 iv) l v) Dl2

$) o is group replaced y folloing functional rroups

i) OD ii) O iii) O iv) O2

) Write a note on

i) andmeyerBs reaction ii) Wurt= reaction iii) 6in8elstein reaction

iv) 6ittig reaction v) 6riedel raft reaction

+) (dentify and in the folloing

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 3038

) Give the structures of the folloing compounds

i) 3romo2methyl pentane ii) 2romo3ethyl hexane iii) 1

holo utane

iv) pichloroen=ene v) 1lt1lt10richloroethane

5) student has performed an experiment in the laoratory e

mixed ater ith hexane and found to layers separated econd

time he mixed chloroform ith ater and he again found to

layers in the test tue Explain hich ill e upper layer and

hich one ill e loer layer in oth the experiments

17) onvert 1hloroutane into the folloing compounds

i) utane1ol ii) 1(odoutane iii) 3222 iv)

11) 6or each pair of compoundslt state hich compound is etter

2 sustrate

i) 2romoutanelt isopropyl romide ii) 1(odo2lt2dimethyl

propane or isopropyl iodide

12) hoose the memer that ill react faster from the folloing

pairs y 1 mechanism

13) -redict the expected product of sustitution reaction

i) isoutyl chloride mH sodium ethoxide

ii) nutyl chloride H sodium

iii) 1hloro propane H aC potassium hydroxide

iv) aniline H aD2gt l

14) Write the products

i) $22A2 H r L

ii) $A2 H r

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 3138

iii)

iv)

v)

1$) (dentify the chiral and achiral molecules

i)

ii)

iii)

1) iscuss 2 mechanism of methyl romide using aCueous

FD ra energy prole diagram1+) Write the mechanism of the reaction hen tutyl chloride is

treated ith aCueous FD ith energy prole diagram

1) ierentiate eteen 1 and 2 mechanism

15) Explain the nature of ond in

i) 322 ii)

27) What are uses of

i) 0 ii) (odoform iii) hloroform iv) aron tetrachloride

21) l8yl halides are polar and miscile ith aterlt explain

22) Which one of the folloing is more easily hydrolysed y

aCueous FD

$l$ and $2l

23) rrange the folloing groups in descending order 2lt D3lt

D3lt DD and l

24) ssign or conguration to each of the folloing

structures

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 3238

i)

ii)

iii)

iv)

DDlt -ED E0E

1) What are alcohols o are they classied

2) What are monohydric alcohols o are they classied

4) Write the structures of folloing alcohols

i) 1Ethylcyclohexanol ii) ex3en2ol iii)yclohex2en1ol

iv) -entane1lt4diol

v) 2lt4imethylhexane1lt3lt$triol

$) Explain the folloing

i) -ropan1ol has higher oiling point than nutane

ii) ampethanol is more solule in ater than -ropan1ol

) Write the mechanism of hydration of ethylene to ethyl alcohol

+) -ropan1ol can not e prepared y acid catalyst hydration of

propenelt then ho is propene converted into propan1ol

)5) o is propanone converted into

i) -ropan2ol ii) 2ampethyl propan2ol

17) o ill you otain utan2ol from

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 3338

i) -ropanal ii) utan2one iii) ut2ene

11) o is propan1ol prepared from

i) -ropanal ii) -ropanoic acid

12) o is cyclopentanol prepared from

i) yclopentanone ii) yclopentene

14) Write the mechanism of acid catalysed dehydration of ethanol

to give ethane

1$) Write the structure of aldehyde lt caroxylic acid and ester

that yield folloing alcohol

1+) o ill you prepare

i) 2ampethylutane1ol from an al8ene

ii) cyclohexylmethanol from a Grignard reagent

iii) 1phenylethanol from acetaldehyde

1) o are folloing conversions rought aout

i) en=yl chloride to en=yl alcohol

ii) en=yl alcohol to en=oic acid

iii) 1Ethylcyclohexanol from yclohexanone

15) What are phenols o are they classied

27)21) Give the structures and (- names of isomeric phenols

represented y the molecular formula 17D

22) o is phenol prepared from

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 3438

i) hloroen=ene ii) (sopropyl en=ene iii) en=ene sulphonic

acid iv) aniline

23 ) Explain the folloing

i) -henol is more acidic than phenol

ii) onitrophenol is more acidic than ocresol

iii) pnitrophenol is less volatile than onitrophenol

24) Explain the folloing reactions of phenol

i) FoleBs reaction ii) iemer0iemann reaction

2$) ame the reagents used to convert phenol intoi) picric acid ii) 2lt4lt0riromophenol iii) en=ene iv) ophenol

sulphonic acid

2) What is the action of folloing reagents on phenol i)

romine in 2 at lo temperature

ii) ilute nitric acid at room temperature iii) oncentrated

sulphuric acid at room temperature

2+) Give distinguish test eteen phenol and ethanol

2) What are ethers o are ethers classied

25) What is metamerism Give the structure and (- name of

metamers of 2ampethoxypropane

37) Write the mechanism for acidic dehydration of ethanol

31) o is diethyl ether prepared y continuous ethericationprocess Why is the process so called

32) o ill you prepared methoxyethane from

i) l8yl halide ii) ia=omethane

33) tate the important uses of i) -henol ii) diethyl ether

8112019 Chemistry Question 12sci (1)

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34) Write the mechanism of action of hydrogen romide on tert

utyl methyl ether

3$) Explain the folloing reactions of anisole

i) romination ii) itration iii) 6riedelrafts al8ylation iv)6riedelrafts acylation

3) Explainlt i) 0he OD group attached to aromatic ring in

phenols and ii) 0he al8oxy group in al8yl aryl ethers are ortholt

para directing and activate the aromatic ring toars electrophilic

sustitution

3+) Write the chemical eCuations for Williamson synthesis of 2

Ethoxy2methypentane starting from ethanol and 2ampethylpentan2ol

3) n organic compound ith the formula 417D3 shos

properties of ether and alcohol hen treated ith an excess of

r yields only one compound 1lt2 diromomethane Write

structural formula of ether and that of alcohol

ALDEHYDES ETONES AND CABO$YLIC

ACID

1) Write the structure and give (- names of the folloing

compounds

i) chloropropionaldehyde

ii) Rhydroxyutyraldehyde

iii) isoutyraldehyde

iv) Rmethylvaleraldehyde

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 3638

v) isopropyl methyl 8etone

vi) diisopropyl 8etone

vii) mromoen=aldehyde

viii) dien=yl 8etone

ix) divinyl 8etone

x) allyl methyl 8etone

xi) ethyl phenyl 8etone

xii) nutyrophenone

2) Write the structure of folloing compounds

i) 4ampethyl3nitroen=ophenone ii) 2ampethyl4oxopentanal iii)

3Dxopentanoic acid iv) 4chloropropiophenone v) 3

ampethoxyutanal vi) 4ydroxycyclohaxane caraldehyde

3) o ill you prepare i) propiophenone from propanenitrile ii)

4chloroen=aldehyde from 4chlorotoluene iii)

yclohaxanecaraldehyde from cyclohexylmethanol iv) 4

methoxyacetophenone from anisole v) 4methylen=aldehydefrom toluene

4) rrange the folloing compounds in the increasing order of

their oiling points

i) dimethyl etherlt ethyl alcohollt propanelt acetaldehyde

ii) acetonelt npropyl alcohollt ethyl methyl alcohol and nutane

$) What is the action of hydrogen cyanide in asic medium on i)utanone ii) 2lt4dichloroen=aldehyde

) What is the action of folloing compounds on cyclohexanone in

presence of dry hydrogen chloride

i) ethyl alcohol ii) ethylene glycol

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 3738

+) Write the structure of product in the folloing reactions

i) 322D3

ii) $2D3

) Write the structures of caronyl compounds and ammonia

derivatives that comine to give folloing imines

i)

ii)

iii)

iv)v)

vi)

5) Write the chemical eCuations for aldol condensation or

anni==aro reaction that folloing compounds undergo

i) -ropanal ii) 2ampethylpropanal iii) -entanal iv) 3

ampethylutanal v) cetophenonevi) pampethoxyen=aldehyde vii) 2ampethylcyclohaxanone viii)

chloral ix) yclopentanone

x) -henyl acetaldehyde xi) 1-henylpropan1one

17) Write the structure of the maKor product of the folloing

crossed aldol condensation

i) formaldehyde and propionaldehydeii) en=aldehyde ith acetone

11) (dentify the compounds SBlt SB and SB in the folloing

reactions and rerite the complete eCuations

i)

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 3838

ii)

12)o ill you eect folloing tostep conversions

i) -ropanal into utanone ii) utanone into ut2ene iii)

en=ene into mromoacetophenone iv) ex3yne into exan

3one v) en=oic acid into mnitroen=ylalcohol

13) o ill you convert en=aldehyde into folloing compounds

ampore than one steps may e reCuired

i) en=ophenone ii) en=oic acid iii) 3-henylpropan1ol iv)hydroxyphenylacetic acid

14) Give a chemical test to distinguish eteen folloing pairs of

compounds

i) Ethanal and propanone ii) -rpopanal and propanone iii)

-entane2one and pentane3one

1$) Write the structure and (- names of folloing caroxylicacids

i) ltRdimethylutanoic acid ii) Rphenylutyric acid iii) 1038389

chloromethylvaleric acid

Page 22: Chemistry Question 12sci (1)

8112019 Chemistry Question 12sci (1)

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a) r2l) 175M) or u3H 14M)

) H aC) or gH aC) 7M)

c) -2H aC) 713M) or o2H 72M)

d) l2 g) 13M) or r3H 7+4M)

$1 Which species in each of the folloing pairs is etter reducing

agent under standard conditions E7 values are given Give

reasons for your anser

a) Fs) 2353M) or ampgs) 23M)

) o2H aC) 11M) or (n s) 714M)

c) e3H aC) 11M) or 0i2H73+M)

d) gl) 7M) or is) 723M)

PROBLEMS

1 conductivity cell lled ith 771amp Fl given at 2$o the

resistance of 74ohms 0he conductivity of Fl at 2$

o

is 7777

CHEMISTRY

d f O DF EEampE0

1) What are dloc8 elements

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 2338

2) What are floc8 elements

3) Explain the meaning of

i) 0ransition series ii) (nner transition element

4) Explain the position of the folloing in periodic tale

i) dloc8 elements ii) anthanoids iii) ctinoids

$) Explain the oxidation state of 1st ro elements of transition

series

) Explain the oxidation states of lanthanoids and actinoids

+) Why do lanthanoids form coloured compounds ) Explainlt most of the transition metal compounds are

remar8aly coloured

5) Why chromium has electronic conguration 3d$ 4s1 and not 3d4

4s2

17) Why does copper sho anormal electronic conguration

11) Explainlt the trends in atomic and ionic si=es of lanthanoidsand also of 1st ro elements of transition series

12) What are actinoids

13) What are transuranic elements Write their name

14) Why transition elements sho tendency to form large numer

of complexes

1$) Explain the compounds of copper ((() are coloured ut thoseof =inc are colourless

1) o is potassium dichromate prepared from chrome ion

1+) Write the preparationlt properties and use of potassium

permanganate

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 2438

1) Explainlt hy -t(M) complexes are generally octahedral hile

-t(() complexes are sCuare planar

15) ierentiate eteen lanthanoids and actinoids

27) What are chemical tins Give examples

21) Explain hy Gd3H is colourless

COORDINATION COMPOUNDS

1) What is the dierence eteen doule salt and coordinationcompounds

2) Explainlt hy 6e4)2 D4)22D) is a salt ut F 4P6e)Q is a

complex compound

3) Write the formula of the folloing complexes

i) alcium hexa cyano ferrate (()

ii) iammine dichloro platinum

iii) is ethylene diammine) dichloro iridium ((() ion

iv) -entamine caronato chromium ((() D(E

v) 0risethylene diammine ) coalt((() sulphate

vi) iamine ethylene diammine nic8el (() acetate

4) Write the rules hich are applied hile riting the formulas of

coordination compounds

$) ene the terms

i) entral metal atomgtion

ii) igand

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 2538

iii) oordination compound

iv) oordination sphere

v) oordination numer

vi) oordination polyhedral

vii) omoleptic and heteroleptic complexes

viii) harge on the complexes

ix) oordination entity

) Write (- name of the folloing complexes

i) Pr2D)4 l2QD3

ii) P-ten)l4Q

iii) F 2Pi)4Q

iv) sP6el4Q

v) rl3-y)3

vi) F 3Po2D4)3Q

vii) Por2en)2Q

viii) P-tl4Q2

ix) Po2D))en)2Q2H

x) F 3Pl2D4)3Q

+) Explain the importance of principles of additive nomenclature

) (dentify the folloing ions y a simple test forming complex

compound

i) u2H ii) i2H iii) 6e3H iv) o2H

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 2638

5) Dn the asis of WernerBs theory explainlt hy coalt amine

complexlt ol343 hen treated ith gD3 solution

precipitates only one ion even though there are three ions

17) alculate the eective atomic numer E) of the centralmetal atom in the folloing compounds

i) F 3P6e)Q ii) rD)

11) Write the postulates of WernerBs theory

12) Explain the onding in ol333 and ol3$3

13) Explain stereoisomerism in metal complexes ith coordination

numer 4 and 14) Why the tetrahedral complexes do not exhiit geometrical

isomerism

1$) ra cis and trans geometrical isomers of

i) dichlororomo iodo palladium (() ion

ii) P-t(()3)2l2Q

iii) Po((()3)l3Q

iv) Po((()3)42D)lQ2H

1) ra all possile geometrical isomers of P-t(M)

3)2-y)2l2Q2H ion

1+) Write oxidation statelt coordination numer and electronic

conguration of the metal atom in the folloing complexes

i) rl3-y)3 ii) F 4Pampn)Q

1) lassify the folloing ligands into monodentatelt polydentate

and amidentate

i) 3 ii) iii) iv) v) D2 vi) ethylene diammine

vii) oxalate

8112019 Chemistry Question 12sci (1)

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viii) triaminotriethylamine

15) ol3$32D is a pin8 solidlt the solution of this salt is also

pin8 and formed 3mol of gl ith silver nitrate solution Dn

heating pin8 solidlt it loses one ater molecule and forms purplesolid having same ratio of o3l as that of pin8 solid 0he

purple solid hen dissolved in ater and treated ith forms 1 mol

of gl ra the structure and name of the pin8 and purple

solids

27) ame the octahedral complex ions

i) Po2D4) en)2QH ii) transPr)4 3)2Q

21) ra the structures of the folloing complexes

i) Pol4Q2 ii) Pampn3)Q2H iii) P-tlQ iv) iD)4 v) Pi)4Q2

22) (n an octahedral crystal eldlt dra the gure to sho splitting

of dorital

23) What are ea8 eld and strong eld ligands What is spectro

chemical series

24) Pi)4Q2 is diamagnetic hile Pr3)Q3H is paramagnetltexplain

2$) Dn the asis of valence ond theory explain the nature of

onding in the folloing complexes

i) Po6Q3 ii) Po2D4)3Q3

2) lue coloured copper sulphate solution gave folloing

experimental results Explain the same

i) With aCueous potassium chloride it gave right green solution

ii) With aCueous potassium Juoride it gave a green precipitate

2+) ra the structures of optically active isomers of Poen)3Q3H

8112019 Chemistry Question 12sci (1)

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2) ra the geometrical and optical isomers of

i) Pol2en)2QH ii) Polen)23)Q2H

25) What is lin8age isomerism Explain ith an example

37) What are hydrate isomers Explain ith examples

31) Explain the structure of

i) upraammonium sulphate ii) Po3)Q3H

32) What are the limitations of valence ond theory

33) Explain the magnetic properties of coordination compounds

34) Write the salient features of crystal eld theory What are itslimitations

3$) Explain the octahedral geometry of complexes using crystal

eld theory

3) Write a note on colours in coordination compounds

3+) Explain the factors aecting the staility of coordination

compound3) Write rief the applications of coordination compounds

HALOGEN DERIVATIVES O ALANES AND ARENES

1) What are al8yl halides o are they classied

2) Write (- names of the folloing compounds

i)

ii) 2Al

8112019 Chemistry Question 12sci (1)

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iii)

iv)

v)

vi) secutyl chloride

vii) neopentyl romide

viii) tutyl iodide

ix) isopropyl romide

3) o is ethyl romide prepared from

i) Ethyl alcohol ii) ethane iii) ethane

4)Write the preparation of isopropyl chloride using the folloing

reagents

i) -l3 ii) -l$ iii) l2 iv) l v) Dl2

$) o is group replaced y folloing functional rroups

i) OD ii) O iii) O iv) O2

) Write a note on

i) andmeyerBs reaction ii) Wurt= reaction iii) 6in8elstein reaction

iv) 6ittig reaction v) 6riedel raft reaction

+) (dentify and in the folloing

8112019 Chemistry Question 12sci (1)

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) Give the structures of the folloing compounds

i) 3romo2methyl pentane ii) 2romo3ethyl hexane iii) 1

holo utane

iv) pichloroen=ene v) 1lt1lt10richloroethane

5) student has performed an experiment in the laoratory e

mixed ater ith hexane and found to layers separated econd

time he mixed chloroform ith ater and he again found to

layers in the test tue Explain hich ill e upper layer and

hich one ill e loer layer in oth the experiments

17) onvert 1hloroutane into the folloing compounds

i) utane1ol ii) 1(odoutane iii) 3222 iv)

11) 6or each pair of compoundslt state hich compound is etter

2 sustrate

i) 2romoutanelt isopropyl romide ii) 1(odo2lt2dimethyl

propane or isopropyl iodide

12) hoose the memer that ill react faster from the folloing

pairs y 1 mechanism

13) -redict the expected product of sustitution reaction

i) isoutyl chloride mH sodium ethoxide

ii) nutyl chloride H sodium

iii) 1hloro propane H aC potassium hydroxide

iv) aniline H aD2gt l

14) Write the products

i) $22A2 H r L

ii) $A2 H r

8112019 Chemistry Question 12sci (1)

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iii)

iv)

v)

1$) (dentify the chiral and achiral molecules

i)

ii)

iii)

1) iscuss 2 mechanism of methyl romide using aCueous

FD ra energy prole diagram1+) Write the mechanism of the reaction hen tutyl chloride is

treated ith aCueous FD ith energy prole diagram

1) ierentiate eteen 1 and 2 mechanism

15) Explain the nature of ond in

i) 322 ii)

27) What are uses of

i) 0 ii) (odoform iii) hloroform iv) aron tetrachloride

21) l8yl halides are polar and miscile ith aterlt explain

22) Which one of the folloing is more easily hydrolysed y

aCueous FD

$l$ and $2l

23) rrange the folloing groups in descending order 2lt D3lt

D3lt DD and l

24) ssign or conguration to each of the folloing

structures

8112019 Chemistry Question 12sci (1)

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i)

ii)

iii)

iv)

DDlt -ED E0E

1) What are alcohols o are they classied

2) What are monohydric alcohols o are they classied

4) Write the structures of folloing alcohols

i) 1Ethylcyclohexanol ii) ex3en2ol iii)yclohex2en1ol

iv) -entane1lt4diol

v) 2lt4imethylhexane1lt3lt$triol

$) Explain the folloing

i) -ropan1ol has higher oiling point than nutane

ii) ampethanol is more solule in ater than -ropan1ol

) Write the mechanism of hydration of ethylene to ethyl alcohol

+) -ropan1ol can not e prepared y acid catalyst hydration of

propenelt then ho is propene converted into propan1ol

)5) o is propanone converted into

i) -ropan2ol ii) 2ampethyl propan2ol

17) o ill you otain utan2ol from

8112019 Chemistry Question 12sci (1)

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i) -ropanal ii) utan2one iii) ut2ene

11) o is propan1ol prepared from

i) -ropanal ii) -ropanoic acid

12) o is cyclopentanol prepared from

i) yclopentanone ii) yclopentene

14) Write the mechanism of acid catalysed dehydration of ethanol

to give ethane

1$) Write the structure of aldehyde lt caroxylic acid and ester

that yield folloing alcohol

1+) o ill you prepare

i) 2ampethylutane1ol from an al8ene

ii) cyclohexylmethanol from a Grignard reagent

iii) 1phenylethanol from acetaldehyde

1) o are folloing conversions rought aout

i) en=yl chloride to en=yl alcohol

ii) en=yl alcohol to en=oic acid

iii) 1Ethylcyclohexanol from yclohexanone

15) What are phenols o are they classied

27)21) Give the structures and (- names of isomeric phenols

represented y the molecular formula 17D

22) o is phenol prepared from

8112019 Chemistry Question 12sci (1)

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i) hloroen=ene ii) (sopropyl en=ene iii) en=ene sulphonic

acid iv) aniline

23 ) Explain the folloing

i) -henol is more acidic than phenol

ii) onitrophenol is more acidic than ocresol

iii) pnitrophenol is less volatile than onitrophenol

24) Explain the folloing reactions of phenol

i) FoleBs reaction ii) iemer0iemann reaction

2$) ame the reagents used to convert phenol intoi) picric acid ii) 2lt4lt0riromophenol iii) en=ene iv) ophenol

sulphonic acid

2) What is the action of folloing reagents on phenol i)

romine in 2 at lo temperature

ii) ilute nitric acid at room temperature iii) oncentrated

sulphuric acid at room temperature

2+) Give distinguish test eteen phenol and ethanol

2) What are ethers o are ethers classied

25) What is metamerism Give the structure and (- name of

metamers of 2ampethoxypropane

37) Write the mechanism for acidic dehydration of ethanol

31) o is diethyl ether prepared y continuous ethericationprocess Why is the process so called

32) o ill you prepared methoxyethane from

i) l8yl halide ii) ia=omethane

33) tate the important uses of i) -henol ii) diethyl ether

8112019 Chemistry Question 12sci (1)

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34) Write the mechanism of action of hydrogen romide on tert

utyl methyl ether

3$) Explain the folloing reactions of anisole

i) romination ii) itration iii) 6riedelrafts al8ylation iv)6riedelrafts acylation

3) Explainlt i) 0he OD group attached to aromatic ring in

phenols and ii) 0he al8oxy group in al8yl aryl ethers are ortholt

para directing and activate the aromatic ring toars electrophilic

sustitution

3+) Write the chemical eCuations for Williamson synthesis of 2

Ethoxy2methypentane starting from ethanol and 2ampethylpentan2ol

3) n organic compound ith the formula 417D3 shos

properties of ether and alcohol hen treated ith an excess of

r yields only one compound 1lt2 diromomethane Write

structural formula of ether and that of alcohol

ALDEHYDES ETONES AND CABO$YLIC

ACID

1) Write the structure and give (- names of the folloing

compounds

i) chloropropionaldehyde

ii) Rhydroxyutyraldehyde

iii) isoutyraldehyde

iv) Rmethylvaleraldehyde

8112019 Chemistry Question 12sci (1)

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v) isopropyl methyl 8etone

vi) diisopropyl 8etone

vii) mromoen=aldehyde

viii) dien=yl 8etone

ix) divinyl 8etone

x) allyl methyl 8etone

xi) ethyl phenyl 8etone

xii) nutyrophenone

2) Write the structure of folloing compounds

i) 4ampethyl3nitroen=ophenone ii) 2ampethyl4oxopentanal iii)

3Dxopentanoic acid iv) 4chloropropiophenone v) 3

ampethoxyutanal vi) 4ydroxycyclohaxane caraldehyde

3) o ill you prepare i) propiophenone from propanenitrile ii)

4chloroen=aldehyde from 4chlorotoluene iii)

yclohaxanecaraldehyde from cyclohexylmethanol iv) 4

methoxyacetophenone from anisole v) 4methylen=aldehydefrom toluene

4) rrange the folloing compounds in the increasing order of

their oiling points

i) dimethyl etherlt ethyl alcohollt propanelt acetaldehyde

ii) acetonelt npropyl alcohollt ethyl methyl alcohol and nutane

$) What is the action of hydrogen cyanide in asic medium on i)utanone ii) 2lt4dichloroen=aldehyde

) What is the action of folloing compounds on cyclohexanone in

presence of dry hydrogen chloride

i) ethyl alcohol ii) ethylene glycol

8112019 Chemistry Question 12sci (1)

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+) Write the structure of product in the folloing reactions

i) 322D3

ii) $2D3

) Write the structures of caronyl compounds and ammonia

derivatives that comine to give folloing imines

i)

ii)

iii)

iv)v)

vi)

5) Write the chemical eCuations for aldol condensation or

anni==aro reaction that folloing compounds undergo

i) -ropanal ii) 2ampethylpropanal iii) -entanal iv) 3

ampethylutanal v) cetophenonevi) pampethoxyen=aldehyde vii) 2ampethylcyclohaxanone viii)

chloral ix) yclopentanone

x) -henyl acetaldehyde xi) 1-henylpropan1one

17) Write the structure of the maKor product of the folloing

crossed aldol condensation

i) formaldehyde and propionaldehydeii) en=aldehyde ith acetone

11) (dentify the compounds SBlt SB and SB in the folloing

reactions and rerite the complete eCuations

i)

8112019 Chemistry Question 12sci (1)

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ii)

12)o ill you eect folloing tostep conversions

i) -ropanal into utanone ii) utanone into ut2ene iii)

en=ene into mromoacetophenone iv) ex3yne into exan

3one v) en=oic acid into mnitroen=ylalcohol

13) o ill you convert en=aldehyde into folloing compounds

ampore than one steps may e reCuired

i) en=ophenone ii) en=oic acid iii) 3-henylpropan1ol iv)hydroxyphenylacetic acid

14) Give a chemical test to distinguish eteen folloing pairs of

compounds

i) Ethanal and propanone ii) -rpopanal and propanone iii)

-entane2one and pentane3one

1$) Write the structure and (- names of folloing caroxylicacids

i) ltRdimethylutanoic acid ii) Rphenylutyric acid iii) 1038389

chloromethylvaleric acid

Page 23: Chemistry Question 12sci (1)

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2) What are floc8 elements

3) Explain the meaning of

i) 0ransition series ii) (nner transition element

4) Explain the position of the folloing in periodic tale

i) dloc8 elements ii) anthanoids iii) ctinoids

$) Explain the oxidation state of 1st ro elements of transition

series

) Explain the oxidation states of lanthanoids and actinoids

+) Why do lanthanoids form coloured compounds ) Explainlt most of the transition metal compounds are

remar8aly coloured

5) Why chromium has electronic conguration 3d$ 4s1 and not 3d4

4s2

17) Why does copper sho anormal electronic conguration

11) Explainlt the trends in atomic and ionic si=es of lanthanoidsand also of 1st ro elements of transition series

12) What are actinoids

13) What are transuranic elements Write their name

14) Why transition elements sho tendency to form large numer

of complexes

1$) Explain the compounds of copper ((() are coloured ut thoseof =inc are colourless

1) o is potassium dichromate prepared from chrome ion

1+) Write the preparationlt properties and use of potassium

permanganate

8112019 Chemistry Question 12sci (1)

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1) Explainlt hy -t(M) complexes are generally octahedral hile

-t(() complexes are sCuare planar

15) ierentiate eteen lanthanoids and actinoids

27) What are chemical tins Give examples

21) Explain hy Gd3H is colourless

COORDINATION COMPOUNDS

1) What is the dierence eteen doule salt and coordinationcompounds

2) Explainlt hy 6e4)2 D4)22D) is a salt ut F 4P6e)Q is a

complex compound

3) Write the formula of the folloing complexes

i) alcium hexa cyano ferrate (()

ii) iammine dichloro platinum

iii) is ethylene diammine) dichloro iridium ((() ion

iv) -entamine caronato chromium ((() D(E

v) 0risethylene diammine ) coalt((() sulphate

vi) iamine ethylene diammine nic8el (() acetate

4) Write the rules hich are applied hile riting the formulas of

coordination compounds

$) ene the terms

i) entral metal atomgtion

ii) igand

8112019 Chemistry Question 12sci (1)

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iii) oordination compound

iv) oordination sphere

v) oordination numer

vi) oordination polyhedral

vii) omoleptic and heteroleptic complexes

viii) harge on the complexes

ix) oordination entity

) Write (- name of the folloing complexes

i) Pr2D)4 l2QD3

ii) P-ten)l4Q

iii) F 2Pi)4Q

iv) sP6el4Q

v) rl3-y)3

vi) F 3Po2D4)3Q

vii) Por2en)2Q

viii) P-tl4Q2

ix) Po2D))en)2Q2H

x) F 3Pl2D4)3Q

+) Explain the importance of principles of additive nomenclature

) (dentify the folloing ions y a simple test forming complex

compound

i) u2H ii) i2H iii) 6e3H iv) o2H

8112019 Chemistry Question 12sci (1)

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5) Dn the asis of WernerBs theory explainlt hy coalt amine

complexlt ol343 hen treated ith gD3 solution

precipitates only one ion even though there are three ions

17) alculate the eective atomic numer E) of the centralmetal atom in the folloing compounds

i) F 3P6e)Q ii) rD)

11) Write the postulates of WernerBs theory

12) Explain the onding in ol333 and ol3$3

13) Explain stereoisomerism in metal complexes ith coordination

numer 4 and 14) Why the tetrahedral complexes do not exhiit geometrical

isomerism

1$) ra cis and trans geometrical isomers of

i) dichlororomo iodo palladium (() ion

ii) P-t(()3)2l2Q

iii) Po((()3)l3Q

iv) Po((()3)42D)lQ2H

1) ra all possile geometrical isomers of P-t(M)

3)2-y)2l2Q2H ion

1+) Write oxidation statelt coordination numer and electronic

conguration of the metal atom in the folloing complexes

i) rl3-y)3 ii) F 4Pampn)Q

1) lassify the folloing ligands into monodentatelt polydentate

and amidentate

i) 3 ii) iii) iv) v) D2 vi) ethylene diammine

vii) oxalate

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 2738

viii) triaminotriethylamine

15) ol3$32D is a pin8 solidlt the solution of this salt is also

pin8 and formed 3mol of gl ith silver nitrate solution Dn

heating pin8 solidlt it loses one ater molecule and forms purplesolid having same ratio of o3l as that of pin8 solid 0he

purple solid hen dissolved in ater and treated ith forms 1 mol

of gl ra the structure and name of the pin8 and purple

solids

27) ame the octahedral complex ions

i) Po2D4) en)2QH ii) transPr)4 3)2Q

21) ra the structures of the folloing complexes

i) Pol4Q2 ii) Pampn3)Q2H iii) P-tlQ iv) iD)4 v) Pi)4Q2

22) (n an octahedral crystal eldlt dra the gure to sho splitting

of dorital

23) What are ea8 eld and strong eld ligands What is spectro

chemical series

24) Pi)4Q2 is diamagnetic hile Pr3)Q3H is paramagnetltexplain

2$) Dn the asis of valence ond theory explain the nature of

onding in the folloing complexes

i) Po6Q3 ii) Po2D4)3Q3

2) lue coloured copper sulphate solution gave folloing

experimental results Explain the same

i) With aCueous potassium chloride it gave right green solution

ii) With aCueous potassium Juoride it gave a green precipitate

2+) ra the structures of optically active isomers of Poen)3Q3H

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 2838

2) ra the geometrical and optical isomers of

i) Pol2en)2QH ii) Polen)23)Q2H

25) What is lin8age isomerism Explain ith an example

37) What are hydrate isomers Explain ith examples

31) Explain the structure of

i) upraammonium sulphate ii) Po3)Q3H

32) What are the limitations of valence ond theory

33) Explain the magnetic properties of coordination compounds

34) Write the salient features of crystal eld theory What are itslimitations

3$) Explain the octahedral geometry of complexes using crystal

eld theory

3) Write a note on colours in coordination compounds

3+) Explain the factors aecting the staility of coordination

compound3) Write rief the applications of coordination compounds

HALOGEN DERIVATIVES O ALANES AND ARENES

1) What are al8yl halides o are they classied

2) Write (- names of the folloing compounds

i)

ii) 2Al

8112019 Chemistry Question 12sci (1)

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iii)

iv)

v)

vi) secutyl chloride

vii) neopentyl romide

viii) tutyl iodide

ix) isopropyl romide

3) o is ethyl romide prepared from

i) Ethyl alcohol ii) ethane iii) ethane

4)Write the preparation of isopropyl chloride using the folloing

reagents

i) -l3 ii) -l$ iii) l2 iv) l v) Dl2

$) o is group replaced y folloing functional rroups

i) OD ii) O iii) O iv) O2

) Write a note on

i) andmeyerBs reaction ii) Wurt= reaction iii) 6in8elstein reaction

iv) 6ittig reaction v) 6riedel raft reaction

+) (dentify and in the folloing

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 3038

) Give the structures of the folloing compounds

i) 3romo2methyl pentane ii) 2romo3ethyl hexane iii) 1

holo utane

iv) pichloroen=ene v) 1lt1lt10richloroethane

5) student has performed an experiment in the laoratory e

mixed ater ith hexane and found to layers separated econd

time he mixed chloroform ith ater and he again found to

layers in the test tue Explain hich ill e upper layer and

hich one ill e loer layer in oth the experiments

17) onvert 1hloroutane into the folloing compounds

i) utane1ol ii) 1(odoutane iii) 3222 iv)

11) 6or each pair of compoundslt state hich compound is etter

2 sustrate

i) 2romoutanelt isopropyl romide ii) 1(odo2lt2dimethyl

propane or isopropyl iodide

12) hoose the memer that ill react faster from the folloing

pairs y 1 mechanism

13) -redict the expected product of sustitution reaction

i) isoutyl chloride mH sodium ethoxide

ii) nutyl chloride H sodium

iii) 1hloro propane H aC potassium hydroxide

iv) aniline H aD2gt l

14) Write the products

i) $22A2 H r L

ii) $A2 H r

8112019 Chemistry Question 12sci (1)

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iii)

iv)

v)

1$) (dentify the chiral and achiral molecules

i)

ii)

iii)

1) iscuss 2 mechanism of methyl romide using aCueous

FD ra energy prole diagram1+) Write the mechanism of the reaction hen tutyl chloride is

treated ith aCueous FD ith energy prole diagram

1) ierentiate eteen 1 and 2 mechanism

15) Explain the nature of ond in

i) 322 ii)

27) What are uses of

i) 0 ii) (odoform iii) hloroform iv) aron tetrachloride

21) l8yl halides are polar and miscile ith aterlt explain

22) Which one of the folloing is more easily hydrolysed y

aCueous FD

$l$ and $2l

23) rrange the folloing groups in descending order 2lt D3lt

D3lt DD and l

24) ssign or conguration to each of the folloing

structures

8112019 Chemistry Question 12sci (1)

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i)

ii)

iii)

iv)

DDlt -ED E0E

1) What are alcohols o are they classied

2) What are monohydric alcohols o are they classied

4) Write the structures of folloing alcohols

i) 1Ethylcyclohexanol ii) ex3en2ol iii)yclohex2en1ol

iv) -entane1lt4diol

v) 2lt4imethylhexane1lt3lt$triol

$) Explain the folloing

i) -ropan1ol has higher oiling point than nutane

ii) ampethanol is more solule in ater than -ropan1ol

) Write the mechanism of hydration of ethylene to ethyl alcohol

+) -ropan1ol can not e prepared y acid catalyst hydration of

propenelt then ho is propene converted into propan1ol

)5) o is propanone converted into

i) -ropan2ol ii) 2ampethyl propan2ol

17) o ill you otain utan2ol from

8112019 Chemistry Question 12sci (1)

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i) -ropanal ii) utan2one iii) ut2ene

11) o is propan1ol prepared from

i) -ropanal ii) -ropanoic acid

12) o is cyclopentanol prepared from

i) yclopentanone ii) yclopentene

14) Write the mechanism of acid catalysed dehydration of ethanol

to give ethane

1$) Write the structure of aldehyde lt caroxylic acid and ester

that yield folloing alcohol

1+) o ill you prepare

i) 2ampethylutane1ol from an al8ene

ii) cyclohexylmethanol from a Grignard reagent

iii) 1phenylethanol from acetaldehyde

1) o are folloing conversions rought aout

i) en=yl chloride to en=yl alcohol

ii) en=yl alcohol to en=oic acid

iii) 1Ethylcyclohexanol from yclohexanone

15) What are phenols o are they classied

27)21) Give the structures and (- names of isomeric phenols

represented y the molecular formula 17D

22) o is phenol prepared from

8112019 Chemistry Question 12sci (1)

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i) hloroen=ene ii) (sopropyl en=ene iii) en=ene sulphonic

acid iv) aniline

23 ) Explain the folloing

i) -henol is more acidic than phenol

ii) onitrophenol is more acidic than ocresol

iii) pnitrophenol is less volatile than onitrophenol

24) Explain the folloing reactions of phenol

i) FoleBs reaction ii) iemer0iemann reaction

2$) ame the reagents used to convert phenol intoi) picric acid ii) 2lt4lt0riromophenol iii) en=ene iv) ophenol

sulphonic acid

2) What is the action of folloing reagents on phenol i)

romine in 2 at lo temperature

ii) ilute nitric acid at room temperature iii) oncentrated

sulphuric acid at room temperature

2+) Give distinguish test eteen phenol and ethanol

2) What are ethers o are ethers classied

25) What is metamerism Give the structure and (- name of

metamers of 2ampethoxypropane

37) Write the mechanism for acidic dehydration of ethanol

31) o is diethyl ether prepared y continuous ethericationprocess Why is the process so called

32) o ill you prepared methoxyethane from

i) l8yl halide ii) ia=omethane

33) tate the important uses of i) -henol ii) diethyl ether

8112019 Chemistry Question 12sci (1)

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34) Write the mechanism of action of hydrogen romide on tert

utyl methyl ether

3$) Explain the folloing reactions of anisole

i) romination ii) itration iii) 6riedelrafts al8ylation iv)6riedelrafts acylation

3) Explainlt i) 0he OD group attached to aromatic ring in

phenols and ii) 0he al8oxy group in al8yl aryl ethers are ortholt

para directing and activate the aromatic ring toars electrophilic

sustitution

3+) Write the chemical eCuations for Williamson synthesis of 2

Ethoxy2methypentane starting from ethanol and 2ampethylpentan2ol

3) n organic compound ith the formula 417D3 shos

properties of ether and alcohol hen treated ith an excess of

r yields only one compound 1lt2 diromomethane Write

structural formula of ether and that of alcohol

ALDEHYDES ETONES AND CABO$YLIC

ACID

1) Write the structure and give (- names of the folloing

compounds

i) chloropropionaldehyde

ii) Rhydroxyutyraldehyde

iii) isoutyraldehyde

iv) Rmethylvaleraldehyde

8112019 Chemistry Question 12sci (1)

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v) isopropyl methyl 8etone

vi) diisopropyl 8etone

vii) mromoen=aldehyde

viii) dien=yl 8etone

ix) divinyl 8etone

x) allyl methyl 8etone

xi) ethyl phenyl 8etone

xii) nutyrophenone

2) Write the structure of folloing compounds

i) 4ampethyl3nitroen=ophenone ii) 2ampethyl4oxopentanal iii)

3Dxopentanoic acid iv) 4chloropropiophenone v) 3

ampethoxyutanal vi) 4ydroxycyclohaxane caraldehyde

3) o ill you prepare i) propiophenone from propanenitrile ii)

4chloroen=aldehyde from 4chlorotoluene iii)

yclohaxanecaraldehyde from cyclohexylmethanol iv) 4

methoxyacetophenone from anisole v) 4methylen=aldehydefrom toluene

4) rrange the folloing compounds in the increasing order of

their oiling points

i) dimethyl etherlt ethyl alcohollt propanelt acetaldehyde

ii) acetonelt npropyl alcohollt ethyl methyl alcohol and nutane

$) What is the action of hydrogen cyanide in asic medium on i)utanone ii) 2lt4dichloroen=aldehyde

) What is the action of folloing compounds on cyclohexanone in

presence of dry hydrogen chloride

i) ethyl alcohol ii) ethylene glycol

8112019 Chemistry Question 12sci (1)

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+) Write the structure of product in the folloing reactions

i) 322D3

ii) $2D3

) Write the structures of caronyl compounds and ammonia

derivatives that comine to give folloing imines

i)

ii)

iii)

iv)v)

vi)

5) Write the chemical eCuations for aldol condensation or

anni==aro reaction that folloing compounds undergo

i) -ropanal ii) 2ampethylpropanal iii) -entanal iv) 3

ampethylutanal v) cetophenonevi) pampethoxyen=aldehyde vii) 2ampethylcyclohaxanone viii)

chloral ix) yclopentanone

x) -henyl acetaldehyde xi) 1-henylpropan1one

17) Write the structure of the maKor product of the folloing

crossed aldol condensation

i) formaldehyde and propionaldehydeii) en=aldehyde ith acetone

11) (dentify the compounds SBlt SB and SB in the folloing

reactions and rerite the complete eCuations

i)

8112019 Chemistry Question 12sci (1)

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ii)

12)o ill you eect folloing tostep conversions

i) -ropanal into utanone ii) utanone into ut2ene iii)

en=ene into mromoacetophenone iv) ex3yne into exan

3one v) en=oic acid into mnitroen=ylalcohol

13) o ill you convert en=aldehyde into folloing compounds

ampore than one steps may e reCuired

i) en=ophenone ii) en=oic acid iii) 3-henylpropan1ol iv)hydroxyphenylacetic acid

14) Give a chemical test to distinguish eteen folloing pairs of

compounds

i) Ethanal and propanone ii) -rpopanal and propanone iii)

-entane2one and pentane3one

1$) Write the structure and (- names of folloing caroxylicacids

i) ltRdimethylutanoic acid ii) Rphenylutyric acid iii) 1038389

chloromethylvaleric acid

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1) Explainlt hy -t(M) complexes are generally octahedral hile

-t(() complexes are sCuare planar

15) ierentiate eteen lanthanoids and actinoids

27) What are chemical tins Give examples

21) Explain hy Gd3H is colourless

COORDINATION COMPOUNDS

1) What is the dierence eteen doule salt and coordinationcompounds

2) Explainlt hy 6e4)2 D4)22D) is a salt ut F 4P6e)Q is a

complex compound

3) Write the formula of the folloing complexes

i) alcium hexa cyano ferrate (()

ii) iammine dichloro platinum

iii) is ethylene diammine) dichloro iridium ((() ion

iv) -entamine caronato chromium ((() D(E

v) 0risethylene diammine ) coalt((() sulphate

vi) iamine ethylene diammine nic8el (() acetate

4) Write the rules hich are applied hile riting the formulas of

coordination compounds

$) ene the terms

i) entral metal atomgtion

ii) igand

8112019 Chemistry Question 12sci (1)

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iii) oordination compound

iv) oordination sphere

v) oordination numer

vi) oordination polyhedral

vii) omoleptic and heteroleptic complexes

viii) harge on the complexes

ix) oordination entity

) Write (- name of the folloing complexes

i) Pr2D)4 l2QD3

ii) P-ten)l4Q

iii) F 2Pi)4Q

iv) sP6el4Q

v) rl3-y)3

vi) F 3Po2D4)3Q

vii) Por2en)2Q

viii) P-tl4Q2

ix) Po2D))en)2Q2H

x) F 3Pl2D4)3Q

+) Explain the importance of principles of additive nomenclature

) (dentify the folloing ions y a simple test forming complex

compound

i) u2H ii) i2H iii) 6e3H iv) o2H

8112019 Chemistry Question 12sci (1)

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5) Dn the asis of WernerBs theory explainlt hy coalt amine

complexlt ol343 hen treated ith gD3 solution

precipitates only one ion even though there are three ions

17) alculate the eective atomic numer E) of the centralmetal atom in the folloing compounds

i) F 3P6e)Q ii) rD)

11) Write the postulates of WernerBs theory

12) Explain the onding in ol333 and ol3$3

13) Explain stereoisomerism in metal complexes ith coordination

numer 4 and 14) Why the tetrahedral complexes do not exhiit geometrical

isomerism

1$) ra cis and trans geometrical isomers of

i) dichlororomo iodo palladium (() ion

ii) P-t(()3)2l2Q

iii) Po((()3)l3Q

iv) Po((()3)42D)lQ2H

1) ra all possile geometrical isomers of P-t(M)

3)2-y)2l2Q2H ion

1+) Write oxidation statelt coordination numer and electronic

conguration of the metal atom in the folloing complexes

i) rl3-y)3 ii) F 4Pampn)Q

1) lassify the folloing ligands into monodentatelt polydentate

and amidentate

i) 3 ii) iii) iv) v) D2 vi) ethylene diammine

vii) oxalate

8112019 Chemistry Question 12sci (1)

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viii) triaminotriethylamine

15) ol3$32D is a pin8 solidlt the solution of this salt is also

pin8 and formed 3mol of gl ith silver nitrate solution Dn

heating pin8 solidlt it loses one ater molecule and forms purplesolid having same ratio of o3l as that of pin8 solid 0he

purple solid hen dissolved in ater and treated ith forms 1 mol

of gl ra the structure and name of the pin8 and purple

solids

27) ame the octahedral complex ions

i) Po2D4) en)2QH ii) transPr)4 3)2Q

21) ra the structures of the folloing complexes

i) Pol4Q2 ii) Pampn3)Q2H iii) P-tlQ iv) iD)4 v) Pi)4Q2

22) (n an octahedral crystal eldlt dra the gure to sho splitting

of dorital

23) What are ea8 eld and strong eld ligands What is spectro

chemical series

24) Pi)4Q2 is diamagnetic hile Pr3)Q3H is paramagnetltexplain

2$) Dn the asis of valence ond theory explain the nature of

onding in the folloing complexes

i) Po6Q3 ii) Po2D4)3Q3

2) lue coloured copper sulphate solution gave folloing

experimental results Explain the same

i) With aCueous potassium chloride it gave right green solution

ii) With aCueous potassium Juoride it gave a green precipitate

2+) ra the structures of optically active isomers of Poen)3Q3H

8112019 Chemistry Question 12sci (1)

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2) ra the geometrical and optical isomers of

i) Pol2en)2QH ii) Polen)23)Q2H

25) What is lin8age isomerism Explain ith an example

37) What are hydrate isomers Explain ith examples

31) Explain the structure of

i) upraammonium sulphate ii) Po3)Q3H

32) What are the limitations of valence ond theory

33) Explain the magnetic properties of coordination compounds

34) Write the salient features of crystal eld theory What are itslimitations

3$) Explain the octahedral geometry of complexes using crystal

eld theory

3) Write a note on colours in coordination compounds

3+) Explain the factors aecting the staility of coordination

compound3) Write rief the applications of coordination compounds

HALOGEN DERIVATIVES O ALANES AND ARENES

1) What are al8yl halides o are they classied

2) Write (- names of the folloing compounds

i)

ii) 2Al

8112019 Chemistry Question 12sci (1)

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iii)

iv)

v)

vi) secutyl chloride

vii) neopentyl romide

viii) tutyl iodide

ix) isopropyl romide

3) o is ethyl romide prepared from

i) Ethyl alcohol ii) ethane iii) ethane

4)Write the preparation of isopropyl chloride using the folloing

reagents

i) -l3 ii) -l$ iii) l2 iv) l v) Dl2

$) o is group replaced y folloing functional rroups

i) OD ii) O iii) O iv) O2

) Write a note on

i) andmeyerBs reaction ii) Wurt= reaction iii) 6in8elstein reaction

iv) 6ittig reaction v) 6riedel raft reaction

+) (dentify and in the folloing

8112019 Chemistry Question 12sci (1)

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) Give the structures of the folloing compounds

i) 3romo2methyl pentane ii) 2romo3ethyl hexane iii) 1

holo utane

iv) pichloroen=ene v) 1lt1lt10richloroethane

5) student has performed an experiment in the laoratory e

mixed ater ith hexane and found to layers separated econd

time he mixed chloroform ith ater and he again found to

layers in the test tue Explain hich ill e upper layer and

hich one ill e loer layer in oth the experiments

17) onvert 1hloroutane into the folloing compounds

i) utane1ol ii) 1(odoutane iii) 3222 iv)

11) 6or each pair of compoundslt state hich compound is etter

2 sustrate

i) 2romoutanelt isopropyl romide ii) 1(odo2lt2dimethyl

propane or isopropyl iodide

12) hoose the memer that ill react faster from the folloing

pairs y 1 mechanism

13) -redict the expected product of sustitution reaction

i) isoutyl chloride mH sodium ethoxide

ii) nutyl chloride H sodium

iii) 1hloro propane H aC potassium hydroxide

iv) aniline H aD2gt l

14) Write the products

i) $22A2 H r L

ii) $A2 H r

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iii)

iv)

v)

1$) (dentify the chiral and achiral molecules

i)

ii)

iii)

1) iscuss 2 mechanism of methyl romide using aCueous

FD ra energy prole diagram1+) Write the mechanism of the reaction hen tutyl chloride is

treated ith aCueous FD ith energy prole diagram

1) ierentiate eteen 1 and 2 mechanism

15) Explain the nature of ond in

i) 322 ii)

27) What are uses of

i) 0 ii) (odoform iii) hloroform iv) aron tetrachloride

21) l8yl halides are polar and miscile ith aterlt explain

22) Which one of the folloing is more easily hydrolysed y

aCueous FD

$l$ and $2l

23) rrange the folloing groups in descending order 2lt D3lt

D3lt DD and l

24) ssign or conguration to each of the folloing

structures

8112019 Chemistry Question 12sci (1)

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i)

ii)

iii)

iv)

DDlt -ED E0E

1) What are alcohols o are they classied

2) What are monohydric alcohols o are they classied

4) Write the structures of folloing alcohols

i) 1Ethylcyclohexanol ii) ex3en2ol iii)yclohex2en1ol

iv) -entane1lt4diol

v) 2lt4imethylhexane1lt3lt$triol

$) Explain the folloing

i) -ropan1ol has higher oiling point than nutane

ii) ampethanol is more solule in ater than -ropan1ol

) Write the mechanism of hydration of ethylene to ethyl alcohol

+) -ropan1ol can not e prepared y acid catalyst hydration of

propenelt then ho is propene converted into propan1ol

)5) o is propanone converted into

i) -ropan2ol ii) 2ampethyl propan2ol

17) o ill you otain utan2ol from

8112019 Chemistry Question 12sci (1)

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i) -ropanal ii) utan2one iii) ut2ene

11) o is propan1ol prepared from

i) -ropanal ii) -ropanoic acid

12) o is cyclopentanol prepared from

i) yclopentanone ii) yclopentene

14) Write the mechanism of acid catalysed dehydration of ethanol

to give ethane

1$) Write the structure of aldehyde lt caroxylic acid and ester

that yield folloing alcohol

1+) o ill you prepare

i) 2ampethylutane1ol from an al8ene

ii) cyclohexylmethanol from a Grignard reagent

iii) 1phenylethanol from acetaldehyde

1) o are folloing conversions rought aout

i) en=yl chloride to en=yl alcohol

ii) en=yl alcohol to en=oic acid

iii) 1Ethylcyclohexanol from yclohexanone

15) What are phenols o are they classied

27)21) Give the structures and (- names of isomeric phenols

represented y the molecular formula 17D

22) o is phenol prepared from

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i) hloroen=ene ii) (sopropyl en=ene iii) en=ene sulphonic

acid iv) aniline

23 ) Explain the folloing

i) -henol is more acidic than phenol

ii) onitrophenol is more acidic than ocresol

iii) pnitrophenol is less volatile than onitrophenol

24) Explain the folloing reactions of phenol

i) FoleBs reaction ii) iemer0iemann reaction

2$) ame the reagents used to convert phenol intoi) picric acid ii) 2lt4lt0riromophenol iii) en=ene iv) ophenol

sulphonic acid

2) What is the action of folloing reagents on phenol i)

romine in 2 at lo temperature

ii) ilute nitric acid at room temperature iii) oncentrated

sulphuric acid at room temperature

2+) Give distinguish test eteen phenol and ethanol

2) What are ethers o are ethers classied

25) What is metamerism Give the structure and (- name of

metamers of 2ampethoxypropane

37) Write the mechanism for acidic dehydration of ethanol

31) o is diethyl ether prepared y continuous ethericationprocess Why is the process so called

32) o ill you prepared methoxyethane from

i) l8yl halide ii) ia=omethane

33) tate the important uses of i) -henol ii) diethyl ether

8112019 Chemistry Question 12sci (1)

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34) Write the mechanism of action of hydrogen romide on tert

utyl methyl ether

3$) Explain the folloing reactions of anisole

i) romination ii) itration iii) 6riedelrafts al8ylation iv)6riedelrafts acylation

3) Explainlt i) 0he OD group attached to aromatic ring in

phenols and ii) 0he al8oxy group in al8yl aryl ethers are ortholt

para directing and activate the aromatic ring toars electrophilic

sustitution

3+) Write the chemical eCuations for Williamson synthesis of 2

Ethoxy2methypentane starting from ethanol and 2ampethylpentan2ol

3) n organic compound ith the formula 417D3 shos

properties of ether and alcohol hen treated ith an excess of

r yields only one compound 1lt2 diromomethane Write

structural formula of ether and that of alcohol

ALDEHYDES ETONES AND CABO$YLIC

ACID

1) Write the structure and give (- names of the folloing

compounds

i) chloropropionaldehyde

ii) Rhydroxyutyraldehyde

iii) isoutyraldehyde

iv) Rmethylvaleraldehyde

8112019 Chemistry Question 12sci (1)

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v) isopropyl methyl 8etone

vi) diisopropyl 8etone

vii) mromoen=aldehyde

viii) dien=yl 8etone

ix) divinyl 8etone

x) allyl methyl 8etone

xi) ethyl phenyl 8etone

xii) nutyrophenone

2) Write the structure of folloing compounds

i) 4ampethyl3nitroen=ophenone ii) 2ampethyl4oxopentanal iii)

3Dxopentanoic acid iv) 4chloropropiophenone v) 3

ampethoxyutanal vi) 4ydroxycyclohaxane caraldehyde

3) o ill you prepare i) propiophenone from propanenitrile ii)

4chloroen=aldehyde from 4chlorotoluene iii)

yclohaxanecaraldehyde from cyclohexylmethanol iv) 4

methoxyacetophenone from anisole v) 4methylen=aldehydefrom toluene

4) rrange the folloing compounds in the increasing order of

their oiling points

i) dimethyl etherlt ethyl alcohollt propanelt acetaldehyde

ii) acetonelt npropyl alcohollt ethyl methyl alcohol and nutane

$) What is the action of hydrogen cyanide in asic medium on i)utanone ii) 2lt4dichloroen=aldehyde

) What is the action of folloing compounds on cyclohexanone in

presence of dry hydrogen chloride

i) ethyl alcohol ii) ethylene glycol

8112019 Chemistry Question 12sci (1)

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+) Write the structure of product in the folloing reactions

i) 322D3

ii) $2D3

) Write the structures of caronyl compounds and ammonia

derivatives that comine to give folloing imines

i)

ii)

iii)

iv)v)

vi)

5) Write the chemical eCuations for aldol condensation or

anni==aro reaction that folloing compounds undergo

i) -ropanal ii) 2ampethylpropanal iii) -entanal iv) 3

ampethylutanal v) cetophenonevi) pampethoxyen=aldehyde vii) 2ampethylcyclohaxanone viii)

chloral ix) yclopentanone

x) -henyl acetaldehyde xi) 1-henylpropan1one

17) Write the structure of the maKor product of the folloing

crossed aldol condensation

i) formaldehyde and propionaldehydeii) en=aldehyde ith acetone

11) (dentify the compounds SBlt SB and SB in the folloing

reactions and rerite the complete eCuations

i)

8112019 Chemistry Question 12sci (1)

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ii)

12)o ill you eect folloing tostep conversions

i) -ropanal into utanone ii) utanone into ut2ene iii)

en=ene into mromoacetophenone iv) ex3yne into exan

3one v) en=oic acid into mnitroen=ylalcohol

13) o ill you convert en=aldehyde into folloing compounds

ampore than one steps may e reCuired

i) en=ophenone ii) en=oic acid iii) 3-henylpropan1ol iv)hydroxyphenylacetic acid

14) Give a chemical test to distinguish eteen folloing pairs of

compounds

i) Ethanal and propanone ii) -rpopanal and propanone iii)

-entane2one and pentane3one

1$) Write the structure and (- names of folloing caroxylicacids

i) ltRdimethylutanoic acid ii) Rphenylutyric acid iii) 1038389

chloromethylvaleric acid

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iii) oordination compound

iv) oordination sphere

v) oordination numer

vi) oordination polyhedral

vii) omoleptic and heteroleptic complexes

viii) harge on the complexes

ix) oordination entity

) Write (- name of the folloing complexes

i) Pr2D)4 l2QD3

ii) P-ten)l4Q

iii) F 2Pi)4Q

iv) sP6el4Q

v) rl3-y)3

vi) F 3Po2D4)3Q

vii) Por2en)2Q

viii) P-tl4Q2

ix) Po2D))en)2Q2H

x) F 3Pl2D4)3Q

+) Explain the importance of principles of additive nomenclature

) (dentify the folloing ions y a simple test forming complex

compound

i) u2H ii) i2H iii) 6e3H iv) o2H

8112019 Chemistry Question 12sci (1)

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5) Dn the asis of WernerBs theory explainlt hy coalt amine

complexlt ol343 hen treated ith gD3 solution

precipitates only one ion even though there are three ions

17) alculate the eective atomic numer E) of the centralmetal atom in the folloing compounds

i) F 3P6e)Q ii) rD)

11) Write the postulates of WernerBs theory

12) Explain the onding in ol333 and ol3$3

13) Explain stereoisomerism in metal complexes ith coordination

numer 4 and 14) Why the tetrahedral complexes do not exhiit geometrical

isomerism

1$) ra cis and trans geometrical isomers of

i) dichlororomo iodo palladium (() ion

ii) P-t(()3)2l2Q

iii) Po((()3)l3Q

iv) Po((()3)42D)lQ2H

1) ra all possile geometrical isomers of P-t(M)

3)2-y)2l2Q2H ion

1+) Write oxidation statelt coordination numer and electronic

conguration of the metal atom in the folloing complexes

i) rl3-y)3 ii) F 4Pampn)Q

1) lassify the folloing ligands into monodentatelt polydentate

and amidentate

i) 3 ii) iii) iv) v) D2 vi) ethylene diammine

vii) oxalate

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 2738

viii) triaminotriethylamine

15) ol3$32D is a pin8 solidlt the solution of this salt is also

pin8 and formed 3mol of gl ith silver nitrate solution Dn

heating pin8 solidlt it loses one ater molecule and forms purplesolid having same ratio of o3l as that of pin8 solid 0he

purple solid hen dissolved in ater and treated ith forms 1 mol

of gl ra the structure and name of the pin8 and purple

solids

27) ame the octahedral complex ions

i) Po2D4) en)2QH ii) transPr)4 3)2Q

21) ra the structures of the folloing complexes

i) Pol4Q2 ii) Pampn3)Q2H iii) P-tlQ iv) iD)4 v) Pi)4Q2

22) (n an octahedral crystal eldlt dra the gure to sho splitting

of dorital

23) What are ea8 eld and strong eld ligands What is spectro

chemical series

24) Pi)4Q2 is diamagnetic hile Pr3)Q3H is paramagnetltexplain

2$) Dn the asis of valence ond theory explain the nature of

onding in the folloing complexes

i) Po6Q3 ii) Po2D4)3Q3

2) lue coloured copper sulphate solution gave folloing

experimental results Explain the same

i) With aCueous potassium chloride it gave right green solution

ii) With aCueous potassium Juoride it gave a green precipitate

2+) ra the structures of optically active isomers of Poen)3Q3H

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 2838

2) ra the geometrical and optical isomers of

i) Pol2en)2QH ii) Polen)23)Q2H

25) What is lin8age isomerism Explain ith an example

37) What are hydrate isomers Explain ith examples

31) Explain the structure of

i) upraammonium sulphate ii) Po3)Q3H

32) What are the limitations of valence ond theory

33) Explain the magnetic properties of coordination compounds

34) Write the salient features of crystal eld theory What are itslimitations

3$) Explain the octahedral geometry of complexes using crystal

eld theory

3) Write a note on colours in coordination compounds

3+) Explain the factors aecting the staility of coordination

compound3) Write rief the applications of coordination compounds

HALOGEN DERIVATIVES O ALANES AND ARENES

1) What are al8yl halides o are they classied

2) Write (- names of the folloing compounds

i)

ii) 2Al

8112019 Chemistry Question 12sci (1)

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iii)

iv)

v)

vi) secutyl chloride

vii) neopentyl romide

viii) tutyl iodide

ix) isopropyl romide

3) o is ethyl romide prepared from

i) Ethyl alcohol ii) ethane iii) ethane

4)Write the preparation of isopropyl chloride using the folloing

reagents

i) -l3 ii) -l$ iii) l2 iv) l v) Dl2

$) o is group replaced y folloing functional rroups

i) OD ii) O iii) O iv) O2

) Write a note on

i) andmeyerBs reaction ii) Wurt= reaction iii) 6in8elstein reaction

iv) 6ittig reaction v) 6riedel raft reaction

+) (dentify and in the folloing

8112019 Chemistry Question 12sci (1)

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) Give the structures of the folloing compounds

i) 3romo2methyl pentane ii) 2romo3ethyl hexane iii) 1

holo utane

iv) pichloroen=ene v) 1lt1lt10richloroethane

5) student has performed an experiment in the laoratory e

mixed ater ith hexane and found to layers separated econd

time he mixed chloroform ith ater and he again found to

layers in the test tue Explain hich ill e upper layer and

hich one ill e loer layer in oth the experiments

17) onvert 1hloroutane into the folloing compounds

i) utane1ol ii) 1(odoutane iii) 3222 iv)

11) 6or each pair of compoundslt state hich compound is etter

2 sustrate

i) 2romoutanelt isopropyl romide ii) 1(odo2lt2dimethyl

propane or isopropyl iodide

12) hoose the memer that ill react faster from the folloing

pairs y 1 mechanism

13) -redict the expected product of sustitution reaction

i) isoutyl chloride mH sodium ethoxide

ii) nutyl chloride H sodium

iii) 1hloro propane H aC potassium hydroxide

iv) aniline H aD2gt l

14) Write the products

i) $22A2 H r L

ii) $A2 H r

8112019 Chemistry Question 12sci (1)

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iii)

iv)

v)

1$) (dentify the chiral and achiral molecules

i)

ii)

iii)

1) iscuss 2 mechanism of methyl romide using aCueous

FD ra energy prole diagram1+) Write the mechanism of the reaction hen tutyl chloride is

treated ith aCueous FD ith energy prole diagram

1) ierentiate eteen 1 and 2 mechanism

15) Explain the nature of ond in

i) 322 ii)

27) What are uses of

i) 0 ii) (odoform iii) hloroform iv) aron tetrachloride

21) l8yl halides are polar and miscile ith aterlt explain

22) Which one of the folloing is more easily hydrolysed y

aCueous FD

$l$ and $2l

23) rrange the folloing groups in descending order 2lt D3lt

D3lt DD and l

24) ssign or conguration to each of the folloing

structures

8112019 Chemistry Question 12sci (1)

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i)

ii)

iii)

iv)

DDlt -ED E0E

1) What are alcohols o are they classied

2) What are monohydric alcohols o are they classied

4) Write the structures of folloing alcohols

i) 1Ethylcyclohexanol ii) ex3en2ol iii)yclohex2en1ol

iv) -entane1lt4diol

v) 2lt4imethylhexane1lt3lt$triol

$) Explain the folloing

i) -ropan1ol has higher oiling point than nutane

ii) ampethanol is more solule in ater than -ropan1ol

) Write the mechanism of hydration of ethylene to ethyl alcohol

+) -ropan1ol can not e prepared y acid catalyst hydration of

propenelt then ho is propene converted into propan1ol

)5) o is propanone converted into

i) -ropan2ol ii) 2ampethyl propan2ol

17) o ill you otain utan2ol from

8112019 Chemistry Question 12sci (1)

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i) -ropanal ii) utan2one iii) ut2ene

11) o is propan1ol prepared from

i) -ropanal ii) -ropanoic acid

12) o is cyclopentanol prepared from

i) yclopentanone ii) yclopentene

14) Write the mechanism of acid catalysed dehydration of ethanol

to give ethane

1$) Write the structure of aldehyde lt caroxylic acid and ester

that yield folloing alcohol

1+) o ill you prepare

i) 2ampethylutane1ol from an al8ene

ii) cyclohexylmethanol from a Grignard reagent

iii) 1phenylethanol from acetaldehyde

1) o are folloing conversions rought aout

i) en=yl chloride to en=yl alcohol

ii) en=yl alcohol to en=oic acid

iii) 1Ethylcyclohexanol from yclohexanone

15) What are phenols o are they classied

27)21) Give the structures and (- names of isomeric phenols

represented y the molecular formula 17D

22) o is phenol prepared from

8112019 Chemistry Question 12sci (1)

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i) hloroen=ene ii) (sopropyl en=ene iii) en=ene sulphonic

acid iv) aniline

23 ) Explain the folloing

i) -henol is more acidic than phenol

ii) onitrophenol is more acidic than ocresol

iii) pnitrophenol is less volatile than onitrophenol

24) Explain the folloing reactions of phenol

i) FoleBs reaction ii) iemer0iemann reaction

2$) ame the reagents used to convert phenol intoi) picric acid ii) 2lt4lt0riromophenol iii) en=ene iv) ophenol

sulphonic acid

2) What is the action of folloing reagents on phenol i)

romine in 2 at lo temperature

ii) ilute nitric acid at room temperature iii) oncentrated

sulphuric acid at room temperature

2+) Give distinguish test eteen phenol and ethanol

2) What are ethers o are ethers classied

25) What is metamerism Give the structure and (- name of

metamers of 2ampethoxypropane

37) Write the mechanism for acidic dehydration of ethanol

31) o is diethyl ether prepared y continuous ethericationprocess Why is the process so called

32) o ill you prepared methoxyethane from

i) l8yl halide ii) ia=omethane

33) tate the important uses of i) -henol ii) diethyl ether

8112019 Chemistry Question 12sci (1)

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34) Write the mechanism of action of hydrogen romide on tert

utyl methyl ether

3$) Explain the folloing reactions of anisole

i) romination ii) itration iii) 6riedelrafts al8ylation iv)6riedelrafts acylation

3) Explainlt i) 0he OD group attached to aromatic ring in

phenols and ii) 0he al8oxy group in al8yl aryl ethers are ortholt

para directing and activate the aromatic ring toars electrophilic

sustitution

3+) Write the chemical eCuations for Williamson synthesis of 2

Ethoxy2methypentane starting from ethanol and 2ampethylpentan2ol

3) n organic compound ith the formula 417D3 shos

properties of ether and alcohol hen treated ith an excess of

r yields only one compound 1lt2 diromomethane Write

structural formula of ether and that of alcohol

ALDEHYDES ETONES AND CABO$YLIC

ACID

1) Write the structure and give (- names of the folloing

compounds

i) chloropropionaldehyde

ii) Rhydroxyutyraldehyde

iii) isoutyraldehyde

iv) Rmethylvaleraldehyde

8112019 Chemistry Question 12sci (1)

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v) isopropyl methyl 8etone

vi) diisopropyl 8etone

vii) mromoen=aldehyde

viii) dien=yl 8etone

ix) divinyl 8etone

x) allyl methyl 8etone

xi) ethyl phenyl 8etone

xii) nutyrophenone

2) Write the structure of folloing compounds

i) 4ampethyl3nitroen=ophenone ii) 2ampethyl4oxopentanal iii)

3Dxopentanoic acid iv) 4chloropropiophenone v) 3

ampethoxyutanal vi) 4ydroxycyclohaxane caraldehyde

3) o ill you prepare i) propiophenone from propanenitrile ii)

4chloroen=aldehyde from 4chlorotoluene iii)

yclohaxanecaraldehyde from cyclohexylmethanol iv) 4

methoxyacetophenone from anisole v) 4methylen=aldehydefrom toluene

4) rrange the folloing compounds in the increasing order of

their oiling points

i) dimethyl etherlt ethyl alcohollt propanelt acetaldehyde

ii) acetonelt npropyl alcohollt ethyl methyl alcohol and nutane

$) What is the action of hydrogen cyanide in asic medium on i)utanone ii) 2lt4dichloroen=aldehyde

) What is the action of folloing compounds on cyclohexanone in

presence of dry hydrogen chloride

i) ethyl alcohol ii) ethylene glycol

8112019 Chemistry Question 12sci (1)

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+) Write the structure of product in the folloing reactions

i) 322D3

ii) $2D3

) Write the structures of caronyl compounds and ammonia

derivatives that comine to give folloing imines

i)

ii)

iii)

iv)v)

vi)

5) Write the chemical eCuations for aldol condensation or

anni==aro reaction that folloing compounds undergo

i) -ropanal ii) 2ampethylpropanal iii) -entanal iv) 3

ampethylutanal v) cetophenonevi) pampethoxyen=aldehyde vii) 2ampethylcyclohaxanone viii)

chloral ix) yclopentanone

x) -henyl acetaldehyde xi) 1-henylpropan1one

17) Write the structure of the maKor product of the folloing

crossed aldol condensation

i) formaldehyde and propionaldehydeii) en=aldehyde ith acetone

11) (dentify the compounds SBlt SB and SB in the folloing

reactions and rerite the complete eCuations

i)

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 3838

ii)

12)o ill you eect folloing tostep conversions

i) -ropanal into utanone ii) utanone into ut2ene iii)

en=ene into mromoacetophenone iv) ex3yne into exan

3one v) en=oic acid into mnitroen=ylalcohol

13) o ill you convert en=aldehyde into folloing compounds

ampore than one steps may e reCuired

i) en=ophenone ii) en=oic acid iii) 3-henylpropan1ol iv)hydroxyphenylacetic acid

14) Give a chemical test to distinguish eteen folloing pairs of

compounds

i) Ethanal and propanone ii) -rpopanal and propanone iii)

-entane2one and pentane3one

1$) Write the structure and (- names of folloing caroxylicacids

i) ltRdimethylutanoic acid ii) Rphenylutyric acid iii) 1038389

chloromethylvaleric acid

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8112019 Chemistry Question 12sci (1)

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5) Dn the asis of WernerBs theory explainlt hy coalt amine

complexlt ol343 hen treated ith gD3 solution

precipitates only one ion even though there are three ions

17) alculate the eective atomic numer E) of the centralmetal atom in the folloing compounds

i) F 3P6e)Q ii) rD)

11) Write the postulates of WernerBs theory

12) Explain the onding in ol333 and ol3$3

13) Explain stereoisomerism in metal complexes ith coordination

numer 4 and 14) Why the tetrahedral complexes do not exhiit geometrical

isomerism

1$) ra cis and trans geometrical isomers of

i) dichlororomo iodo palladium (() ion

ii) P-t(()3)2l2Q

iii) Po((()3)l3Q

iv) Po((()3)42D)lQ2H

1) ra all possile geometrical isomers of P-t(M)

3)2-y)2l2Q2H ion

1+) Write oxidation statelt coordination numer and electronic

conguration of the metal atom in the folloing complexes

i) rl3-y)3 ii) F 4Pampn)Q

1) lassify the folloing ligands into monodentatelt polydentate

and amidentate

i) 3 ii) iii) iv) v) D2 vi) ethylene diammine

vii) oxalate

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 2738

viii) triaminotriethylamine

15) ol3$32D is a pin8 solidlt the solution of this salt is also

pin8 and formed 3mol of gl ith silver nitrate solution Dn

heating pin8 solidlt it loses one ater molecule and forms purplesolid having same ratio of o3l as that of pin8 solid 0he

purple solid hen dissolved in ater and treated ith forms 1 mol

of gl ra the structure and name of the pin8 and purple

solids

27) ame the octahedral complex ions

i) Po2D4) en)2QH ii) transPr)4 3)2Q

21) ra the structures of the folloing complexes

i) Pol4Q2 ii) Pampn3)Q2H iii) P-tlQ iv) iD)4 v) Pi)4Q2

22) (n an octahedral crystal eldlt dra the gure to sho splitting

of dorital

23) What are ea8 eld and strong eld ligands What is spectro

chemical series

24) Pi)4Q2 is diamagnetic hile Pr3)Q3H is paramagnetltexplain

2$) Dn the asis of valence ond theory explain the nature of

onding in the folloing complexes

i) Po6Q3 ii) Po2D4)3Q3

2) lue coloured copper sulphate solution gave folloing

experimental results Explain the same

i) With aCueous potassium chloride it gave right green solution

ii) With aCueous potassium Juoride it gave a green precipitate

2+) ra the structures of optically active isomers of Poen)3Q3H

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 2838

2) ra the geometrical and optical isomers of

i) Pol2en)2QH ii) Polen)23)Q2H

25) What is lin8age isomerism Explain ith an example

37) What are hydrate isomers Explain ith examples

31) Explain the structure of

i) upraammonium sulphate ii) Po3)Q3H

32) What are the limitations of valence ond theory

33) Explain the magnetic properties of coordination compounds

34) Write the salient features of crystal eld theory What are itslimitations

3$) Explain the octahedral geometry of complexes using crystal

eld theory

3) Write a note on colours in coordination compounds

3+) Explain the factors aecting the staility of coordination

compound3) Write rief the applications of coordination compounds

HALOGEN DERIVATIVES O ALANES AND ARENES

1) What are al8yl halides o are they classied

2) Write (- names of the folloing compounds

i)

ii) 2Al

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 2938

iii)

iv)

v)

vi) secutyl chloride

vii) neopentyl romide

viii) tutyl iodide

ix) isopropyl romide

3) o is ethyl romide prepared from

i) Ethyl alcohol ii) ethane iii) ethane

4)Write the preparation of isopropyl chloride using the folloing

reagents

i) -l3 ii) -l$ iii) l2 iv) l v) Dl2

$) o is group replaced y folloing functional rroups

i) OD ii) O iii) O iv) O2

) Write a note on

i) andmeyerBs reaction ii) Wurt= reaction iii) 6in8elstein reaction

iv) 6ittig reaction v) 6riedel raft reaction

+) (dentify and in the folloing

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 3038

) Give the structures of the folloing compounds

i) 3romo2methyl pentane ii) 2romo3ethyl hexane iii) 1

holo utane

iv) pichloroen=ene v) 1lt1lt10richloroethane

5) student has performed an experiment in the laoratory e

mixed ater ith hexane and found to layers separated econd

time he mixed chloroform ith ater and he again found to

layers in the test tue Explain hich ill e upper layer and

hich one ill e loer layer in oth the experiments

17) onvert 1hloroutane into the folloing compounds

i) utane1ol ii) 1(odoutane iii) 3222 iv)

11) 6or each pair of compoundslt state hich compound is etter

2 sustrate

i) 2romoutanelt isopropyl romide ii) 1(odo2lt2dimethyl

propane or isopropyl iodide

12) hoose the memer that ill react faster from the folloing

pairs y 1 mechanism

13) -redict the expected product of sustitution reaction

i) isoutyl chloride mH sodium ethoxide

ii) nutyl chloride H sodium

iii) 1hloro propane H aC potassium hydroxide

iv) aniline H aD2gt l

14) Write the products

i) $22A2 H r L

ii) $A2 H r

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 3138

iii)

iv)

v)

1$) (dentify the chiral and achiral molecules

i)

ii)

iii)

1) iscuss 2 mechanism of methyl romide using aCueous

FD ra energy prole diagram1+) Write the mechanism of the reaction hen tutyl chloride is

treated ith aCueous FD ith energy prole diagram

1) ierentiate eteen 1 and 2 mechanism

15) Explain the nature of ond in

i) 322 ii)

27) What are uses of

i) 0 ii) (odoform iii) hloroform iv) aron tetrachloride

21) l8yl halides are polar and miscile ith aterlt explain

22) Which one of the folloing is more easily hydrolysed y

aCueous FD

$l$ and $2l

23) rrange the folloing groups in descending order 2lt D3lt

D3lt DD and l

24) ssign or conguration to each of the folloing

structures

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 3238

i)

ii)

iii)

iv)

DDlt -ED E0E

1) What are alcohols o are they classied

2) What are monohydric alcohols o are they classied

4) Write the structures of folloing alcohols

i) 1Ethylcyclohexanol ii) ex3en2ol iii)yclohex2en1ol

iv) -entane1lt4diol

v) 2lt4imethylhexane1lt3lt$triol

$) Explain the folloing

i) -ropan1ol has higher oiling point than nutane

ii) ampethanol is more solule in ater than -ropan1ol

) Write the mechanism of hydration of ethylene to ethyl alcohol

+) -ropan1ol can not e prepared y acid catalyst hydration of

propenelt then ho is propene converted into propan1ol

)5) o is propanone converted into

i) -ropan2ol ii) 2ampethyl propan2ol

17) o ill you otain utan2ol from

8112019 Chemistry Question 12sci (1)

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i) -ropanal ii) utan2one iii) ut2ene

11) o is propan1ol prepared from

i) -ropanal ii) -ropanoic acid

12) o is cyclopentanol prepared from

i) yclopentanone ii) yclopentene

14) Write the mechanism of acid catalysed dehydration of ethanol

to give ethane

1$) Write the structure of aldehyde lt caroxylic acid and ester

that yield folloing alcohol

1+) o ill you prepare

i) 2ampethylutane1ol from an al8ene

ii) cyclohexylmethanol from a Grignard reagent

iii) 1phenylethanol from acetaldehyde

1) o are folloing conversions rought aout

i) en=yl chloride to en=yl alcohol

ii) en=yl alcohol to en=oic acid

iii) 1Ethylcyclohexanol from yclohexanone

15) What are phenols o are they classied

27)21) Give the structures and (- names of isomeric phenols

represented y the molecular formula 17D

22) o is phenol prepared from

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 3438

i) hloroen=ene ii) (sopropyl en=ene iii) en=ene sulphonic

acid iv) aniline

23 ) Explain the folloing

i) -henol is more acidic than phenol

ii) onitrophenol is more acidic than ocresol

iii) pnitrophenol is less volatile than onitrophenol

24) Explain the folloing reactions of phenol

i) FoleBs reaction ii) iemer0iemann reaction

2$) ame the reagents used to convert phenol intoi) picric acid ii) 2lt4lt0riromophenol iii) en=ene iv) ophenol

sulphonic acid

2) What is the action of folloing reagents on phenol i)

romine in 2 at lo temperature

ii) ilute nitric acid at room temperature iii) oncentrated

sulphuric acid at room temperature

2+) Give distinguish test eteen phenol and ethanol

2) What are ethers o are ethers classied

25) What is metamerism Give the structure and (- name of

metamers of 2ampethoxypropane

37) Write the mechanism for acidic dehydration of ethanol

31) o is diethyl ether prepared y continuous ethericationprocess Why is the process so called

32) o ill you prepared methoxyethane from

i) l8yl halide ii) ia=omethane

33) tate the important uses of i) -henol ii) diethyl ether

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 3538

34) Write the mechanism of action of hydrogen romide on tert

utyl methyl ether

3$) Explain the folloing reactions of anisole

i) romination ii) itration iii) 6riedelrafts al8ylation iv)6riedelrafts acylation

3) Explainlt i) 0he OD group attached to aromatic ring in

phenols and ii) 0he al8oxy group in al8yl aryl ethers are ortholt

para directing and activate the aromatic ring toars electrophilic

sustitution

3+) Write the chemical eCuations for Williamson synthesis of 2

Ethoxy2methypentane starting from ethanol and 2ampethylpentan2ol

3) n organic compound ith the formula 417D3 shos

properties of ether and alcohol hen treated ith an excess of

r yields only one compound 1lt2 diromomethane Write

structural formula of ether and that of alcohol

ALDEHYDES ETONES AND CABO$YLIC

ACID

1) Write the structure and give (- names of the folloing

compounds

i) chloropropionaldehyde

ii) Rhydroxyutyraldehyde

iii) isoutyraldehyde

iv) Rmethylvaleraldehyde

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 3638

v) isopropyl methyl 8etone

vi) diisopropyl 8etone

vii) mromoen=aldehyde

viii) dien=yl 8etone

ix) divinyl 8etone

x) allyl methyl 8etone

xi) ethyl phenyl 8etone

xii) nutyrophenone

2) Write the structure of folloing compounds

i) 4ampethyl3nitroen=ophenone ii) 2ampethyl4oxopentanal iii)

3Dxopentanoic acid iv) 4chloropropiophenone v) 3

ampethoxyutanal vi) 4ydroxycyclohaxane caraldehyde

3) o ill you prepare i) propiophenone from propanenitrile ii)

4chloroen=aldehyde from 4chlorotoluene iii)

yclohaxanecaraldehyde from cyclohexylmethanol iv) 4

methoxyacetophenone from anisole v) 4methylen=aldehydefrom toluene

4) rrange the folloing compounds in the increasing order of

their oiling points

i) dimethyl etherlt ethyl alcohollt propanelt acetaldehyde

ii) acetonelt npropyl alcohollt ethyl methyl alcohol and nutane

$) What is the action of hydrogen cyanide in asic medium on i)utanone ii) 2lt4dichloroen=aldehyde

) What is the action of folloing compounds on cyclohexanone in

presence of dry hydrogen chloride

i) ethyl alcohol ii) ethylene glycol

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 3738

+) Write the structure of product in the folloing reactions

i) 322D3

ii) $2D3

) Write the structures of caronyl compounds and ammonia

derivatives that comine to give folloing imines

i)

ii)

iii)

iv)v)

vi)

5) Write the chemical eCuations for aldol condensation or

anni==aro reaction that folloing compounds undergo

i) -ropanal ii) 2ampethylpropanal iii) -entanal iv) 3

ampethylutanal v) cetophenonevi) pampethoxyen=aldehyde vii) 2ampethylcyclohaxanone viii)

chloral ix) yclopentanone

x) -henyl acetaldehyde xi) 1-henylpropan1one

17) Write the structure of the maKor product of the folloing

crossed aldol condensation

i) formaldehyde and propionaldehydeii) en=aldehyde ith acetone

11) (dentify the compounds SBlt SB and SB in the folloing

reactions and rerite the complete eCuations

i)

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 3838

ii)

12)o ill you eect folloing tostep conversions

i) -ropanal into utanone ii) utanone into ut2ene iii)

en=ene into mromoacetophenone iv) ex3yne into exan

3one v) en=oic acid into mnitroen=ylalcohol

13) o ill you convert en=aldehyde into folloing compounds

ampore than one steps may e reCuired

i) en=ophenone ii) en=oic acid iii) 3-henylpropan1ol iv)hydroxyphenylacetic acid

14) Give a chemical test to distinguish eteen folloing pairs of

compounds

i) Ethanal and propanone ii) -rpopanal and propanone iii)

-entane2one and pentane3one

1$) Write the structure and (- names of folloing caroxylicacids

i) ltRdimethylutanoic acid ii) Rphenylutyric acid iii) 1038389

chloromethylvaleric acid

Page 27: Chemistry Question 12sci (1)

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 2738

viii) triaminotriethylamine

15) ol3$32D is a pin8 solidlt the solution of this salt is also

pin8 and formed 3mol of gl ith silver nitrate solution Dn

heating pin8 solidlt it loses one ater molecule and forms purplesolid having same ratio of o3l as that of pin8 solid 0he

purple solid hen dissolved in ater and treated ith forms 1 mol

of gl ra the structure and name of the pin8 and purple

solids

27) ame the octahedral complex ions

i) Po2D4) en)2QH ii) transPr)4 3)2Q

21) ra the structures of the folloing complexes

i) Pol4Q2 ii) Pampn3)Q2H iii) P-tlQ iv) iD)4 v) Pi)4Q2

22) (n an octahedral crystal eldlt dra the gure to sho splitting

of dorital

23) What are ea8 eld and strong eld ligands What is spectro

chemical series

24) Pi)4Q2 is diamagnetic hile Pr3)Q3H is paramagnetltexplain

2$) Dn the asis of valence ond theory explain the nature of

onding in the folloing complexes

i) Po6Q3 ii) Po2D4)3Q3

2) lue coloured copper sulphate solution gave folloing

experimental results Explain the same

i) With aCueous potassium chloride it gave right green solution

ii) With aCueous potassium Juoride it gave a green precipitate

2+) ra the structures of optically active isomers of Poen)3Q3H

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 2838

2) ra the geometrical and optical isomers of

i) Pol2en)2QH ii) Polen)23)Q2H

25) What is lin8age isomerism Explain ith an example

37) What are hydrate isomers Explain ith examples

31) Explain the structure of

i) upraammonium sulphate ii) Po3)Q3H

32) What are the limitations of valence ond theory

33) Explain the magnetic properties of coordination compounds

34) Write the salient features of crystal eld theory What are itslimitations

3$) Explain the octahedral geometry of complexes using crystal

eld theory

3) Write a note on colours in coordination compounds

3+) Explain the factors aecting the staility of coordination

compound3) Write rief the applications of coordination compounds

HALOGEN DERIVATIVES O ALANES AND ARENES

1) What are al8yl halides o are they classied

2) Write (- names of the folloing compounds

i)

ii) 2Al

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 2938

iii)

iv)

v)

vi) secutyl chloride

vii) neopentyl romide

viii) tutyl iodide

ix) isopropyl romide

3) o is ethyl romide prepared from

i) Ethyl alcohol ii) ethane iii) ethane

4)Write the preparation of isopropyl chloride using the folloing

reagents

i) -l3 ii) -l$ iii) l2 iv) l v) Dl2

$) o is group replaced y folloing functional rroups

i) OD ii) O iii) O iv) O2

) Write a note on

i) andmeyerBs reaction ii) Wurt= reaction iii) 6in8elstein reaction

iv) 6ittig reaction v) 6riedel raft reaction

+) (dentify and in the folloing

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 3038

) Give the structures of the folloing compounds

i) 3romo2methyl pentane ii) 2romo3ethyl hexane iii) 1

holo utane

iv) pichloroen=ene v) 1lt1lt10richloroethane

5) student has performed an experiment in the laoratory e

mixed ater ith hexane and found to layers separated econd

time he mixed chloroform ith ater and he again found to

layers in the test tue Explain hich ill e upper layer and

hich one ill e loer layer in oth the experiments

17) onvert 1hloroutane into the folloing compounds

i) utane1ol ii) 1(odoutane iii) 3222 iv)

11) 6or each pair of compoundslt state hich compound is etter

2 sustrate

i) 2romoutanelt isopropyl romide ii) 1(odo2lt2dimethyl

propane or isopropyl iodide

12) hoose the memer that ill react faster from the folloing

pairs y 1 mechanism

13) -redict the expected product of sustitution reaction

i) isoutyl chloride mH sodium ethoxide

ii) nutyl chloride H sodium

iii) 1hloro propane H aC potassium hydroxide

iv) aniline H aD2gt l

14) Write the products

i) $22A2 H r L

ii) $A2 H r

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 3138

iii)

iv)

v)

1$) (dentify the chiral and achiral molecules

i)

ii)

iii)

1) iscuss 2 mechanism of methyl romide using aCueous

FD ra energy prole diagram1+) Write the mechanism of the reaction hen tutyl chloride is

treated ith aCueous FD ith energy prole diagram

1) ierentiate eteen 1 and 2 mechanism

15) Explain the nature of ond in

i) 322 ii)

27) What are uses of

i) 0 ii) (odoform iii) hloroform iv) aron tetrachloride

21) l8yl halides are polar and miscile ith aterlt explain

22) Which one of the folloing is more easily hydrolysed y

aCueous FD

$l$ and $2l

23) rrange the folloing groups in descending order 2lt D3lt

D3lt DD and l

24) ssign or conguration to each of the folloing

structures

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 3238

i)

ii)

iii)

iv)

DDlt -ED E0E

1) What are alcohols o are they classied

2) What are monohydric alcohols o are they classied

4) Write the structures of folloing alcohols

i) 1Ethylcyclohexanol ii) ex3en2ol iii)yclohex2en1ol

iv) -entane1lt4diol

v) 2lt4imethylhexane1lt3lt$triol

$) Explain the folloing

i) -ropan1ol has higher oiling point than nutane

ii) ampethanol is more solule in ater than -ropan1ol

) Write the mechanism of hydration of ethylene to ethyl alcohol

+) -ropan1ol can not e prepared y acid catalyst hydration of

propenelt then ho is propene converted into propan1ol

)5) o is propanone converted into

i) -ropan2ol ii) 2ampethyl propan2ol

17) o ill you otain utan2ol from

8112019 Chemistry Question 12sci (1)

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i) -ropanal ii) utan2one iii) ut2ene

11) o is propan1ol prepared from

i) -ropanal ii) -ropanoic acid

12) o is cyclopentanol prepared from

i) yclopentanone ii) yclopentene

14) Write the mechanism of acid catalysed dehydration of ethanol

to give ethane

1$) Write the structure of aldehyde lt caroxylic acid and ester

that yield folloing alcohol

1+) o ill you prepare

i) 2ampethylutane1ol from an al8ene

ii) cyclohexylmethanol from a Grignard reagent

iii) 1phenylethanol from acetaldehyde

1) o are folloing conversions rought aout

i) en=yl chloride to en=yl alcohol

ii) en=yl alcohol to en=oic acid

iii) 1Ethylcyclohexanol from yclohexanone

15) What are phenols o are they classied

27)21) Give the structures and (- names of isomeric phenols

represented y the molecular formula 17D

22) o is phenol prepared from

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 3438

i) hloroen=ene ii) (sopropyl en=ene iii) en=ene sulphonic

acid iv) aniline

23 ) Explain the folloing

i) -henol is more acidic than phenol

ii) onitrophenol is more acidic than ocresol

iii) pnitrophenol is less volatile than onitrophenol

24) Explain the folloing reactions of phenol

i) FoleBs reaction ii) iemer0iemann reaction

2$) ame the reagents used to convert phenol intoi) picric acid ii) 2lt4lt0riromophenol iii) en=ene iv) ophenol

sulphonic acid

2) What is the action of folloing reagents on phenol i)

romine in 2 at lo temperature

ii) ilute nitric acid at room temperature iii) oncentrated

sulphuric acid at room temperature

2+) Give distinguish test eteen phenol and ethanol

2) What are ethers o are ethers classied

25) What is metamerism Give the structure and (- name of

metamers of 2ampethoxypropane

37) Write the mechanism for acidic dehydration of ethanol

31) o is diethyl ether prepared y continuous ethericationprocess Why is the process so called

32) o ill you prepared methoxyethane from

i) l8yl halide ii) ia=omethane

33) tate the important uses of i) -henol ii) diethyl ether

8112019 Chemistry Question 12sci (1)

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34) Write the mechanism of action of hydrogen romide on tert

utyl methyl ether

3$) Explain the folloing reactions of anisole

i) romination ii) itration iii) 6riedelrafts al8ylation iv)6riedelrafts acylation

3) Explainlt i) 0he OD group attached to aromatic ring in

phenols and ii) 0he al8oxy group in al8yl aryl ethers are ortholt

para directing and activate the aromatic ring toars electrophilic

sustitution

3+) Write the chemical eCuations for Williamson synthesis of 2

Ethoxy2methypentane starting from ethanol and 2ampethylpentan2ol

3) n organic compound ith the formula 417D3 shos

properties of ether and alcohol hen treated ith an excess of

r yields only one compound 1lt2 diromomethane Write

structural formula of ether and that of alcohol

ALDEHYDES ETONES AND CABO$YLIC

ACID

1) Write the structure and give (- names of the folloing

compounds

i) chloropropionaldehyde

ii) Rhydroxyutyraldehyde

iii) isoutyraldehyde

iv) Rmethylvaleraldehyde

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 3638

v) isopropyl methyl 8etone

vi) diisopropyl 8etone

vii) mromoen=aldehyde

viii) dien=yl 8etone

ix) divinyl 8etone

x) allyl methyl 8etone

xi) ethyl phenyl 8etone

xii) nutyrophenone

2) Write the structure of folloing compounds

i) 4ampethyl3nitroen=ophenone ii) 2ampethyl4oxopentanal iii)

3Dxopentanoic acid iv) 4chloropropiophenone v) 3

ampethoxyutanal vi) 4ydroxycyclohaxane caraldehyde

3) o ill you prepare i) propiophenone from propanenitrile ii)

4chloroen=aldehyde from 4chlorotoluene iii)

yclohaxanecaraldehyde from cyclohexylmethanol iv) 4

methoxyacetophenone from anisole v) 4methylen=aldehydefrom toluene

4) rrange the folloing compounds in the increasing order of

their oiling points

i) dimethyl etherlt ethyl alcohollt propanelt acetaldehyde

ii) acetonelt npropyl alcohollt ethyl methyl alcohol and nutane

$) What is the action of hydrogen cyanide in asic medium on i)utanone ii) 2lt4dichloroen=aldehyde

) What is the action of folloing compounds on cyclohexanone in

presence of dry hydrogen chloride

i) ethyl alcohol ii) ethylene glycol

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 3738

+) Write the structure of product in the folloing reactions

i) 322D3

ii) $2D3

) Write the structures of caronyl compounds and ammonia

derivatives that comine to give folloing imines

i)

ii)

iii)

iv)v)

vi)

5) Write the chemical eCuations for aldol condensation or

anni==aro reaction that folloing compounds undergo

i) -ropanal ii) 2ampethylpropanal iii) -entanal iv) 3

ampethylutanal v) cetophenonevi) pampethoxyen=aldehyde vii) 2ampethylcyclohaxanone viii)

chloral ix) yclopentanone

x) -henyl acetaldehyde xi) 1-henylpropan1one

17) Write the structure of the maKor product of the folloing

crossed aldol condensation

i) formaldehyde and propionaldehydeii) en=aldehyde ith acetone

11) (dentify the compounds SBlt SB and SB in the folloing

reactions and rerite the complete eCuations

i)

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 3838

ii)

12)o ill you eect folloing tostep conversions

i) -ropanal into utanone ii) utanone into ut2ene iii)

en=ene into mromoacetophenone iv) ex3yne into exan

3one v) en=oic acid into mnitroen=ylalcohol

13) o ill you convert en=aldehyde into folloing compounds

ampore than one steps may e reCuired

i) en=ophenone ii) en=oic acid iii) 3-henylpropan1ol iv)hydroxyphenylacetic acid

14) Give a chemical test to distinguish eteen folloing pairs of

compounds

i) Ethanal and propanone ii) -rpopanal and propanone iii)

-entane2one and pentane3one

1$) Write the structure and (- names of folloing caroxylicacids

i) ltRdimethylutanoic acid ii) Rphenylutyric acid iii) 1038389

chloromethylvaleric acid

Page 28: Chemistry Question 12sci (1)

8112019 Chemistry Question 12sci (1)

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2) ra the geometrical and optical isomers of

i) Pol2en)2QH ii) Polen)23)Q2H

25) What is lin8age isomerism Explain ith an example

37) What are hydrate isomers Explain ith examples

31) Explain the structure of

i) upraammonium sulphate ii) Po3)Q3H

32) What are the limitations of valence ond theory

33) Explain the magnetic properties of coordination compounds

34) Write the salient features of crystal eld theory What are itslimitations

3$) Explain the octahedral geometry of complexes using crystal

eld theory

3) Write a note on colours in coordination compounds

3+) Explain the factors aecting the staility of coordination

compound3) Write rief the applications of coordination compounds

HALOGEN DERIVATIVES O ALANES AND ARENES

1) What are al8yl halides o are they classied

2) Write (- names of the folloing compounds

i)

ii) 2Al

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 2938

iii)

iv)

v)

vi) secutyl chloride

vii) neopentyl romide

viii) tutyl iodide

ix) isopropyl romide

3) o is ethyl romide prepared from

i) Ethyl alcohol ii) ethane iii) ethane

4)Write the preparation of isopropyl chloride using the folloing

reagents

i) -l3 ii) -l$ iii) l2 iv) l v) Dl2

$) o is group replaced y folloing functional rroups

i) OD ii) O iii) O iv) O2

) Write a note on

i) andmeyerBs reaction ii) Wurt= reaction iii) 6in8elstein reaction

iv) 6ittig reaction v) 6riedel raft reaction

+) (dentify and in the folloing

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 3038

) Give the structures of the folloing compounds

i) 3romo2methyl pentane ii) 2romo3ethyl hexane iii) 1

holo utane

iv) pichloroen=ene v) 1lt1lt10richloroethane

5) student has performed an experiment in the laoratory e

mixed ater ith hexane and found to layers separated econd

time he mixed chloroform ith ater and he again found to

layers in the test tue Explain hich ill e upper layer and

hich one ill e loer layer in oth the experiments

17) onvert 1hloroutane into the folloing compounds

i) utane1ol ii) 1(odoutane iii) 3222 iv)

11) 6or each pair of compoundslt state hich compound is etter

2 sustrate

i) 2romoutanelt isopropyl romide ii) 1(odo2lt2dimethyl

propane or isopropyl iodide

12) hoose the memer that ill react faster from the folloing

pairs y 1 mechanism

13) -redict the expected product of sustitution reaction

i) isoutyl chloride mH sodium ethoxide

ii) nutyl chloride H sodium

iii) 1hloro propane H aC potassium hydroxide

iv) aniline H aD2gt l

14) Write the products

i) $22A2 H r L

ii) $A2 H r

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 3138

iii)

iv)

v)

1$) (dentify the chiral and achiral molecules

i)

ii)

iii)

1) iscuss 2 mechanism of methyl romide using aCueous

FD ra energy prole diagram1+) Write the mechanism of the reaction hen tutyl chloride is

treated ith aCueous FD ith energy prole diagram

1) ierentiate eteen 1 and 2 mechanism

15) Explain the nature of ond in

i) 322 ii)

27) What are uses of

i) 0 ii) (odoform iii) hloroform iv) aron tetrachloride

21) l8yl halides are polar and miscile ith aterlt explain

22) Which one of the folloing is more easily hydrolysed y

aCueous FD

$l$ and $2l

23) rrange the folloing groups in descending order 2lt D3lt

D3lt DD and l

24) ssign or conguration to each of the folloing

structures

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 3238

i)

ii)

iii)

iv)

DDlt -ED E0E

1) What are alcohols o are they classied

2) What are monohydric alcohols o are they classied

4) Write the structures of folloing alcohols

i) 1Ethylcyclohexanol ii) ex3en2ol iii)yclohex2en1ol

iv) -entane1lt4diol

v) 2lt4imethylhexane1lt3lt$triol

$) Explain the folloing

i) -ropan1ol has higher oiling point than nutane

ii) ampethanol is more solule in ater than -ropan1ol

) Write the mechanism of hydration of ethylene to ethyl alcohol

+) -ropan1ol can not e prepared y acid catalyst hydration of

propenelt then ho is propene converted into propan1ol

)5) o is propanone converted into

i) -ropan2ol ii) 2ampethyl propan2ol

17) o ill you otain utan2ol from

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 3338

i) -ropanal ii) utan2one iii) ut2ene

11) o is propan1ol prepared from

i) -ropanal ii) -ropanoic acid

12) o is cyclopentanol prepared from

i) yclopentanone ii) yclopentene

14) Write the mechanism of acid catalysed dehydration of ethanol

to give ethane

1$) Write the structure of aldehyde lt caroxylic acid and ester

that yield folloing alcohol

1+) o ill you prepare

i) 2ampethylutane1ol from an al8ene

ii) cyclohexylmethanol from a Grignard reagent

iii) 1phenylethanol from acetaldehyde

1) o are folloing conversions rought aout

i) en=yl chloride to en=yl alcohol

ii) en=yl alcohol to en=oic acid

iii) 1Ethylcyclohexanol from yclohexanone

15) What are phenols o are they classied

27)21) Give the structures and (- names of isomeric phenols

represented y the molecular formula 17D

22) o is phenol prepared from

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 3438

i) hloroen=ene ii) (sopropyl en=ene iii) en=ene sulphonic

acid iv) aniline

23 ) Explain the folloing

i) -henol is more acidic than phenol

ii) onitrophenol is more acidic than ocresol

iii) pnitrophenol is less volatile than onitrophenol

24) Explain the folloing reactions of phenol

i) FoleBs reaction ii) iemer0iemann reaction

2$) ame the reagents used to convert phenol intoi) picric acid ii) 2lt4lt0riromophenol iii) en=ene iv) ophenol

sulphonic acid

2) What is the action of folloing reagents on phenol i)

romine in 2 at lo temperature

ii) ilute nitric acid at room temperature iii) oncentrated

sulphuric acid at room temperature

2+) Give distinguish test eteen phenol and ethanol

2) What are ethers o are ethers classied

25) What is metamerism Give the structure and (- name of

metamers of 2ampethoxypropane

37) Write the mechanism for acidic dehydration of ethanol

31) o is diethyl ether prepared y continuous ethericationprocess Why is the process so called

32) o ill you prepared methoxyethane from

i) l8yl halide ii) ia=omethane

33) tate the important uses of i) -henol ii) diethyl ether

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 3538

34) Write the mechanism of action of hydrogen romide on tert

utyl methyl ether

3$) Explain the folloing reactions of anisole

i) romination ii) itration iii) 6riedelrafts al8ylation iv)6riedelrafts acylation

3) Explainlt i) 0he OD group attached to aromatic ring in

phenols and ii) 0he al8oxy group in al8yl aryl ethers are ortholt

para directing and activate the aromatic ring toars electrophilic

sustitution

3+) Write the chemical eCuations for Williamson synthesis of 2

Ethoxy2methypentane starting from ethanol and 2ampethylpentan2ol

3) n organic compound ith the formula 417D3 shos

properties of ether and alcohol hen treated ith an excess of

r yields only one compound 1lt2 diromomethane Write

structural formula of ether and that of alcohol

ALDEHYDES ETONES AND CABO$YLIC

ACID

1) Write the structure and give (- names of the folloing

compounds

i) chloropropionaldehyde

ii) Rhydroxyutyraldehyde

iii) isoutyraldehyde

iv) Rmethylvaleraldehyde

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 3638

v) isopropyl methyl 8etone

vi) diisopropyl 8etone

vii) mromoen=aldehyde

viii) dien=yl 8etone

ix) divinyl 8etone

x) allyl methyl 8etone

xi) ethyl phenyl 8etone

xii) nutyrophenone

2) Write the structure of folloing compounds

i) 4ampethyl3nitroen=ophenone ii) 2ampethyl4oxopentanal iii)

3Dxopentanoic acid iv) 4chloropropiophenone v) 3

ampethoxyutanal vi) 4ydroxycyclohaxane caraldehyde

3) o ill you prepare i) propiophenone from propanenitrile ii)

4chloroen=aldehyde from 4chlorotoluene iii)

yclohaxanecaraldehyde from cyclohexylmethanol iv) 4

methoxyacetophenone from anisole v) 4methylen=aldehydefrom toluene

4) rrange the folloing compounds in the increasing order of

their oiling points

i) dimethyl etherlt ethyl alcohollt propanelt acetaldehyde

ii) acetonelt npropyl alcohollt ethyl methyl alcohol and nutane

$) What is the action of hydrogen cyanide in asic medium on i)utanone ii) 2lt4dichloroen=aldehyde

) What is the action of folloing compounds on cyclohexanone in

presence of dry hydrogen chloride

i) ethyl alcohol ii) ethylene glycol

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 3738

+) Write the structure of product in the folloing reactions

i) 322D3

ii) $2D3

) Write the structures of caronyl compounds and ammonia

derivatives that comine to give folloing imines

i)

ii)

iii)

iv)v)

vi)

5) Write the chemical eCuations for aldol condensation or

anni==aro reaction that folloing compounds undergo

i) -ropanal ii) 2ampethylpropanal iii) -entanal iv) 3

ampethylutanal v) cetophenonevi) pampethoxyen=aldehyde vii) 2ampethylcyclohaxanone viii)

chloral ix) yclopentanone

x) -henyl acetaldehyde xi) 1-henylpropan1one

17) Write the structure of the maKor product of the folloing

crossed aldol condensation

i) formaldehyde and propionaldehydeii) en=aldehyde ith acetone

11) (dentify the compounds SBlt SB and SB in the folloing

reactions and rerite the complete eCuations

i)

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 3838

ii)

12)o ill you eect folloing tostep conversions

i) -ropanal into utanone ii) utanone into ut2ene iii)

en=ene into mromoacetophenone iv) ex3yne into exan

3one v) en=oic acid into mnitroen=ylalcohol

13) o ill you convert en=aldehyde into folloing compounds

ampore than one steps may e reCuired

i) en=ophenone ii) en=oic acid iii) 3-henylpropan1ol iv)hydroxyphenylacetic acid

14) Give a chemical test to distinguish eteen folloing pairs of

compounds

i) Ethanal and propanone ii) -rpopanal and propanone iii)

-entane2one and pentane3one

1$) Write the structure and (- names of folloing caroxylicacids

i) ltRdimethylutanoic acid ii) Rphenylutyric acid iii) 1038389

chloromethylvaleric acid

Page 29: Chemistry Question 12sci (1)

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 2938

iii)

iv)

v)

vi) secutyl chloride

vii) neopentyl romide

viii) tutyl iodide

ix) isopropyl romide

3) o is ethyl romide prepared from

i) Ethyl alcohol ii) ethane iii) ethane

4)Write the preparation of isopropyl chloride using the folloing

reagents

i) -l3 ii) -l$ iii) l2 iv) l v) Dl2

$) o is group replaced y folloing functional rroups

i) OD ii) O iii) O iv) O2

) Write a note on

i) andmeyerBs reaction ii) Wurt= reaction iii) 6in8elstein reaction

iv) 6ittig reaction v) 6riedel raft reaction

+) (dentify and in the folloing

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 3038

) Give the structures of the folloing compounds

i) 3romo2methyl pentane ii) 2romo3ethyl hexane iii) 1

holo utane

iv) pichloroen=ene v) 1lt1lt10richloroethane

5) student has performed an experiment in the laoratory e

mixed ater ith hexane and found to layers separated econd

time he mixed chloroform ith ater and he again found to

layers in the test tue Explain hich ill e upper layer and

hich one ill e loer layer in oth the experiments

17) onvert 1hloroutane into the folloing compounds

i) utane1ol ii) 1(odoutane iii) 3222 iv)

11) 6or each pair of compoundslt state hich compound is etter

2 sustrate

i) 2romoutanelt isopropyl romide ii) 1(odo2lt2dimethyl

propane or isopropyl iodide

12) hoose the memer that ill react faster from the folloing

pairs y 1 mechanism

13) -redict the expected product of sustitution reaction

i) isoutyl chloride mH sodium ethoxide

ii) nutyl chloride H sodium

iii) 1hloro propane H aC potassium hydroxide

iv) aniline H aD2gt l

14) Write the products

i) $22A2 H r L

ii) $A2 H r

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 3138

iii)

iv)

v)

1$) (dentify the chiral and achiral molecules

i)

ii)

iii)

1) iscuss 2 mechanism of methyl romide using aCueous

FD ra energy prole diagram1+) Write the mechanism of the reaction hen tutyl chloride is

treated ith aCueous FD ith energy prole diagram

1) ierentiate eteen 1 and 2 mechanism

15) Explain the nature of ond in

i) 322 ii)

27) What are uses of

i) 0 ii) (odoform iii) hloroform iv) aron tetrachloride

21) l8yl halides are polar and miscile ith aterlt explain

22) Which one of the folloing is more easily hydrolysed y

aCueous FD

$l$ and $2l

23) rrange the folloing groups in descending order 2lt D3lt

D3lt DD and l

24) ssign or conguration to each of the folloing

structures

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 3238

i)

ii)

iii)

iv)

DDlt -ED E0E

1) What are alcohols o are they classied

2) What are monohydric alcohols o are they classied

4) Write the structures of folloing alcohols

i) 1Ethylcyclohexanol ii) ex3en2ol iii)yclohex2en1ol

iv) -entane1lt4diol

v) 2lt4imethylhexane1lt3lt$triol

$) Explain the folloing

i) -ropan1ol has higher oiling point than nutane

ii) ampethanol is more solule in ater than -ropan1ol

) Write the mechanism of hydration of ethylene to ethyl alcohol

+) -ropan1ol can not e prepared y acid catalyst hydration of

propenelt then ho is propene converted into propan1ol

)5) o is propanone converted into

i) -ropan2ol ii) 2ampethyl propan2ol

17) o ill you otain utan2ol from

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 3338

i) -ropanal ii) utan2one iii) ut2ene

11) o is propan1ol prepared from

i) -ropanal ii) -ropanoic acid

12) o is cyclopentanol prepared from

i) yclopentanone ii) yclopentene

14) Write the mechanism of acid catalysed dehydration of ethanol

to give ethane

1$) Write the structure of aldehyde lt caroxylic acid and ester

that yield folloing alcohol

1+) o ill you prepare

i) 2ampethylutane1ol from an al8ene

ii) cyclohexylmethanol from a Grignard reagent

iii) 1phenylethanol from acetaldehyde

1) o are folloing conversions rought aout

i) en=yl chloride to en=yl alcohol

ii) en=yl alcohol to en=oic acid

iii) 1Ethylcyclohexanol from yclohexanone

15) What are phenols o are they classied

27)21) Give the structures and (- names of isomeric phenols

represented y the molecular formula 17D

22) o is phenol prepared from

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 3438

i) hloroen=ene ii) (sopropyl en=ene iii) en=ene sulphonic

acid iv) aniline

23 ) Explain the folloing

i) -henol is more acidic than phenol

ii) onitrophenol is more acidic than ocresol

iii) pnitrophenol is less volatile than onitrophenol

24) Explain the folloing reactions of phenol

i) FoleBs reaction ii) iemer0iemann reaction

2$) ame the reagents used to convert phenol intoi) picric acid ii) 2lt4lt0riromophenol iii) en=ene iv) ophenol

sulphonic acid

2) What is the action of folloing reagents on phenol i)

romine in 2 at lo temperature

ii) ilute nitric acid at room temperature iii) oncentrated

sulphuric acid at room temperature

2+) Give distinguish test eteen phenol and ethanol

2) What are ethers o are ethers classied

25) What is metamerism Give the structure and (- name of

metamers of 2ampethoxypropane

37) Write the mechanism for acidic dehydration of ethanol

31) o is diethyl ether prepared y continuous ethericationprocess Why is the process so called

32) o ill you prepared methoxyethane from

i) l8yl halide ii) ia=omethane

33) tate the important uses of i) -henol ii) diethyl ether

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 3538

34) Write the mechanism of action of hydrogen romide on tert

utyl methyl ether

3$) Explain the folloing reactions of anisole

i) romination ii) itration iii) 6riedelrafts al8ylation iv)6riedelrafts acylation

3) Explainlt i) 0he OD group attached to aromatic ring in

phenols and ii) 0he al8oxy group in al8yl aryl ethers are ortholt

para directing and activate the aromatic ring toars electrophilic

sustitution

3+) Write the chemical eCuations for Williamson synthesis of 2

Ethoxy2methypentane starting from ethanol and 2ampethylpentan2ol

3) n organic compound ith the formula 417D3 shos

properties of ether and alcohol hen treated ith an excess of

r yields only one compound 1lt2 diromomethane Write

structural formula of ether and that of alcohol

ALDEHYDES ETONES AND CABO$YLIC

ACID

1) Write the structure and give (- names of the folloing

compounds

i) chloropropionaldehyde

ii) Rhydroxyutyraldehyde

iii) isoutyraldehyde

iv) Rmethylvaleraldehyde

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 3638

v) isopropyl methyl 8etone

vi) diisopropyl 8etone

vii) mromoen=aldehyde

viii) dien=yl 8etone

ix) divinyl 8etone

x) allyl methyl 8etone

xi) ethyl phenyl 8etone

xii) nutyrophenone

2) Write the structure of folloing compounds

i) 4ampethyl3nitroen=ophenone ii) 2ampethyl4oxopentanal iii)

3Dxopentanoic acid iv) 4chloropropiophenone v) 3

ampethoxyutanal vi) 4ydroxycyclohaxane caraldehyde

3) o ill you prepare i) propiophenone from propanenitrile ii)

4chloroen=aldehyde from 4chlorotoluene iii)

yclohaxanecaraldehyde from cyclohexylmethanol iv) 4

methoxyacetophenone from anisole v) 4methylen=aldehydefrom toluene

4) rrange the folloing compounds in the increasing order of

their oiling points

i) dimethyl etherlt ethyl alcohollt propanelt acetaldehyde

ii) acetonelt npropyl alcohollt ethyl methyl alcohol and nutane

$) What is the action of hydrogen cyanide in asic medium on i)utanone ii) 2lt4dichloroen=aldehyde

) What is the action of folloing compounds on cyclohexanone in

presence of dry hydrogen chloride

i) ethyl alcohol ii) ethylene glycol

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 3738

+) Write the structure of product in the folloing reactions

i) 322D3

ii) $2D3

) Write the structures of caronyl compounds and ammonia

derivatives that comine to give folloing imines

i)

ii)

iii)

iv)v)

vi)

5) Write the chemical eCuations for aldol condensation or

anni==aro reaction that folloing compounds undergo

i) -ropanal ii) 2ampethylpropanal iii) -entanal iv) 3

ampethylutanal v) cetophenonevi) pampethoxyen=aldehyde vii) 2ampethylcyclohaxanone viii)

chloral ix) yclopentanone

x) -henyl acetaldehyde xi) 1-henylpropan1one

17) Write the structure of the maKor product of the folloing

crossed aldol condensation

i) formaldehyde and propionaldehydeii) en=aldehyde ith acetone

11) (dentify the compounds SBlt SB and SB in the folloing

reactions and rerite the complete eCuations

i)

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 3838

ii)

12)o ill you eect folloing tostep conversions

i) -ropanal into utanone ii) utanone into ut2ene iii)

en=ene into mromoacetophenone iv) ex3yne into exan

3one v) en=oic acid into mnitroen=ylalcohol

13) o ill you convert en=aldehyde into folloing compounds

ampore than one steps may e reCuired

i) en=ophenone ii) en=oic acid iii) 3-henylpropan1ol iv)hydroxyphenylacetic acid

14) Give a chemical test to distinguish eteen folloing pairs of

compounds

i) Ethanal and propanone ii) -rpopanal and propanone iii)

-entane2one and pentane3one

1$) Write the structure and (- names of folloing caroxylicacids

i) ltRdimethylutanoic acid ii) Rphenylutyric acid iii) 1038389

chloromethylvaleric acid

Page 30: Chemistry Question 12sci (1)

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 3038

) Give the structures of the folloing compounds

i) 3romo2methyl pentane ii) 2romo3ethyl hexane iii) 1

holo utane

iv) pichloroen=ene v) 1lt1lt10richloroethane

5) student has performed an experiment in the laoratory e

mixed ater ith hexane and found to layers separated econd

time he mixed chloroform ith ater and he again found to

layers in the test tue Explain hich ill e upper layer and

hich one ill e loer layer in oth the experiments

17) onvert 1hloroutane into the folloing compounds

i) utane1ol ii) 1(odoutane iii) 3222 iv)

11) 6or each pair of compoundslt state hich compound is etter

2 sustrate

i) 2romoutanelt isopropyl romide ii) 1(odo2lt2dimethyl

propane or isopropyl iodide

12) hoose the memer that ill react faster from the folloing

pairs y 1 mechanism

13) -redict the expected product of sustitution reaction

i) isoutyl chloride mH sodium ethoxide

ii) nutyl chloride H sodium

iii) 1hloro propane H aC potassium hydroxide

iv) aniline H aD2gt l

14) Write the products

i) $22A2 H r L

ii) $A2 H r

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 3138

iii)

iv)

v)

1$) (dentify the chiral and achiral molecules

i)

ii)

iii)

1) iscuss 2 mechanism of methyl romide using aCueous

FD ra energy prole diagram1+) Write the mechanism of the reaction hen tutyl chloride is

treated ith aCueous FD ith energy prole diagram

1) ierentiate eteen 1 and 2 mechanism

15) Explain the nature of ond in

i) 322 ii)

27) What are uses of

i) 0 ii) (odoform iii) hloroform iv) aron tetrachloride

21) l8yl halides are polar and miscile ith aterlt explain

22) Which one of the folloing is more easily hydrolysed y

aCueous FD

$l$ and $2l

23) rrange the folloing groups in descending order 2lt D3lt

D3lt DD and l

24) ssign or conguration to each of the folloing

structures

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 3238

i)

ii)

iii)

iv)

DDlt -ED E0E

1) What are alcohols o are they classied

2) What are monohydric alcohols o are they classied

4) Write the structures of folloing alcohols

i) 1Ethylcyclohexanol ii) ex3en2ol iii)yclohex2en1ol

iv) -entane1lt4diol

v) 2lt4imethylhexane1lt3lt$triol

$) Explain the folloing

i) -ropan1ol has higher oiling point than nutane

ii) ampethanol is more solule in ater than -ropan1ol

) Write the mechanism of hydration of ethylene to ethyl alcohol

+) -ropan1ol can not e prepared y acid catalyst hydration of

propenelt then ho is propene converted into propan1ol

)5) o is propanone converted into

i) -ropan2ol ii) 2ampethyl propan2ol

17) o ill you otain utan2ol from

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 3338

i) -ropanal ii) utan2one iii) ut2ene

11) o is propan1ol prepared from

i) -ropanal ii) -ropanoic acid

12) o is cyclopentanol prepared from

i) yclopentanone ii) yclopentene

14) Write the mechanism of acid catalysed dehydration of ethanol

to give ethane

1$) Write the structure of aldehyde lt caroxylic acid and ester

that yield folloing alcohol

1+) o ill you prepare

i) 2ampethylutane1ol from an al8ene

ii) cyclohexylmethanol from a Grignard reagent

iii) 1phenylethanol from acetaldehyde

1) o are folloing conversions rought aout

i) en=yl chloride to en=yl alcohol

ii) en=yl alcohol to en=oic acid

iii) 1Ethylcyclohexanol from yclohexanone

15) What are phenols o are they classied

27)21) Give the structures and (- names of isomeric phenols

represented y the molecular formula 17D

22) o is phenol prepared from

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 3438

i) hloroen=ene ii) (sopropyl en=ene iii) en=ene sulphonic

acid iv) aniline

23 ) Explain the folloing

i) -henol is more acidic than phenol

ii) onitrophenol is more acidic than ocresol

iii) pnitrophenol is less volatile than onitrophenol

24) Explain the folloing reactions of phenol

i) FoleBs reaction ii) iemer0iemann reaction

2$) ame the reagents used to convert phenol intoi) picric acid ii) 2lt4lt0riromophenol iii) en=ene iv) ophenol

sulphonic acid

2) What is the action of folloing reagents on phenol i)

romine in 2 at lo temperature

ii) ilute nitric acid at room temperature iii) oncentrated

sulphuric acid at room temperature

2+) Give distinguish test eteen phenol and ethanol

2) What are ethers o are ethers classied

25) What is metamerism Give the structure and (- name of

metamers of 2ampethoxypropane

37) Write the mechanism for acidic dehydration of ethanol

31) o is diethyl ether prepared y continuous ethericationprocess Why is the process so called

32) o ill you prepared methoxyethane from

i) l8yl halide ii) ia=omethane

33) tate the important uses of i) -henol ii) diethyl ether

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 3538

34) Write the mechanism of action of hydrogen romide on tert

utyl methyl ether

3$) Explain the folloing reactions of anisole

i) romination ii) itration iii) 6riedelrafts al8ylation iv)6riedelrafts acylation

3) Explainlt i) 0he OD group attached to aromatic ring in

phenols and ii) 0he al8oxy group in al8yl aryl ethers are ortholt

para directing and activate the aromatic ring toars electrophilic

sustitution

3+) Write the chemical eCuations for Williamson synthesis of 2

Ethoxy2methypentane starting from ethanol and 2ampethylpentan2ol

3) n organic compound ith the formula 417D3 shos

properties of ether and alcohol hen treated ith an excess of

r yields only one compound 1lt2 diromomethane Write

structural formula of ether and that of alcohol

ALDEHYDES ETONES AND CABO$YLIC

ACID

1) Write the structure and give (- names of the folloing

compounds

i) chloropropionaldehyde

ii) Rhydroxyutyraldehyde

iii) isoutyraldehyde

iv) Rmethylvaleraldehyde

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 3638

v) isopropyl methyl 8etone

vi) diisopropyl 8etone

vii) mromoen=aldehyde

viii) dien=yl 8etone

ix) divinyl 8etone

x) allyl methyl 8etone

xi) ethyl phenyl 8etone

xii) nutyrophenone

2) Write the structure of folloing compounds

i) 4ampethyl3nitroen=ophenone ii) 2ampethyl4oxopentanal iii)

3Dxopentanoic acid iv) 4chloropropiophenone v) 3

ampethoxyutanal vi) 4ydroxycyclohaxane caraldehyde

3) o ill you prepare i) propiophenone from propanenitrile ii)

4chloroen=aldehyde from 4chlorotoluene iii)

yclohaxanecaraldehyde from cyclohexylmethanol iv) 4

methoxyacetophenone from anisole v) 4methylen=aldehydefrom toluene

4) rrange the folloing compounds in the increasing order of

their oiling points

i) dimethyl etherlt ethyl alcohollt propanelt acetaldehyde

ii) acetonelt npropyl alcohollt ethyl methyl alcohol and nutane

$) What is the action of hydrogen cyanide in asic medium on i)utanone ii) 2lt4dichloroen=aldehyde

) What is the action of folloing compounds on cyclohexanone in

presence of dry hydrogen chloride

i) ethyl alcohol ii) ethylene glycol

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 3738

+) Write the structure of product in the folloing reactions

i) 322D3

ii) $2D3

) Write the structures of caronyl compounds and ammonia

derivatives that comine to give folloing imines

i)

ii)

iii)

iv)v)

vi)

5) Write the chemical eCuations for aldol condensation or

anni==aro reaction that folloing compounds undergo

i) -ropanal ii) 2ampethylpropanal iii) -entanal iv) 3

ampethylutanal v) cetophenonevi) pampethoxyen=aldehyde vii) 2ampethylcyclohaxanone viii)

chloral ix) yclopentanone

x) -henyl acetaldehyde xi) 1-henylpropan1one

17) Write the structure of the maKor product of the folloing

crossed aldol condensation

i) formaldehyde and propionaldehydeii) en=aldehyde ith acetone

11) (dentify the compounds SBlt SB and SB in the folloing

reactions and rerite the complete eCuations

i)

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 3838

ii)

12)o ill you eect folloing tostep conversions

i) -ropanal into utanone ii) utanone into ut2ene iii)

en=ene into mromoacetophenone iv) ex3yne into exan

3one v) en=oic acid into mnitroen=ylalcohol

13) o ill you convert en=aldehyde into folloing compounds

ampore than one steps may e reCuired

i) en=ophenone ii) en=oic acid iii) 3-henylpropan1ol iv)hydroxyphenylacetic acid

14) Give a chemical test to distinguish eteen folloing pairs of

compounds

i) Ethanal and propanone ii) -rpopanal and propanone iii)

-entane2one and pentane3one

1$) Write the structure and (- names of folloing caroxylicacids

i) ltRdimethylutanoic acid ii) Rphenylutyric acid iii) 1038389

chloromethylvaleric acid

Page 31: Chemistry Question 12sci (1)

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 3138

iii)

iv)

v)

1$) (dentify the chiral and achiral molecules

i)

ii)

iii)

1) iscuss 2 mechanism of methyl romide using aCueous

FD ra energy prole diagram1+) Write the mechanism of the reaction hen tutyl chloride is

treated ith aCueous FD ith energy prole diagram

1) ierentiate eteen 1 and 2 mechanism

15) Explain the nature of ond in

i) 322 ii)

27) What are uses of

i) 0 ii) (odoform iii) hloroform iv) aron tetrachloride

21) l8yl halides are polar and miscile ith aterlt explain

22) Which one of the folloing is more easily hydrolysed y

aCueous FD

$l$ and $2l

23) rrange the folloing groups in descending order 2lt D3lt

D3lt DD and l

24) ssign or conguration to each of the folloing

structures

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 3238

i)

ii)

iii)

iv)

DDlt -ED E0E

1) What are alcohols o are they classied

2) What are monohydric alcohols o are they classied

4) Write the structures of folloing alcohols

i) 1Ethylcyclohexanol ii) ex3en2ol iii)yclohex2en1ol

iv) -entane1lt4diol

v) 2lt4imethylhexane1lt3lt$triol

$) Explain the folloing

i) -ropan1ol has higher oiling point than nutane

ii) ampethanol is more solule in ater than -ropan1ol

) Write the mechanism of hydration of ethylene to ethyl alcohol

+) -ropan1ol can not e prepared y acid catalyst hydration of

propenelt then ho is propene converted into propan1ol

)5) o is propanone converted into

i) -ropan2ol ii) 2ampethyl propan2ol

17) o ill you otain utan2ol from

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 3338

i) -ropanal ii) utan2one iii) ut2ene

11) o is propan1ol prepared from

i) -ropanal ii) -ropanoic acid

12) o is cyclopentanol prepared from

i) yclopentanone ii) yclopentene

14) Write the mechanism of acid catalysed dehydration of ethanol

to give ethane

1$) Write the structure of aldehyde lt caroxylic acid and ester

that yield folloing alcohol

1+) o ill you prepare

i) 2ampethylutane1ol from an al8ene

ii) cyclohexylmethanol from a Grignard reagent

iii) 1phenylethanol from acetaldehyde

1) o are folloing conversions rought aout

i) en=yl chloride to en=yl alcohol

ii) en=yl alcohol to en=oic acid

iii) 1Ethylcyclohexanol from yclohexanone

15) What are phenols o are they classied

27)21) Give the structures and (- names of isomeric phenols

represented y the molecular formula 17D

22) o is phenol prepared from

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 3438

i) hloroen=ene ii) (sopropyl en=ene iii) en=ene sulphonic

acid iv) aniline

23 ) Explain the folloing

i) -henol is more acidic than phenol

ii) onitrophenol is more acidic than ocresol

iii) pnitrophenol is less volatile than onitrophenol

24) Explain the folloing reactions of phenol

i) FoleBs reaction ii) iemer0iemann reaction

2$) ame the reagents used to convert phenol intoi) picric acid ii) 2lt4lt0riromophenol iii) en=ene iv) ophenol

sulphonic acid

2) What is the action of folloing reagents on phenol i)

romine in 2 at lo temperature

ii) ilute nitric acid at room temperature iii) oncentrated

sulphuric acid at room temperature

2+) Give distinguish test eteen phenol and ethanol

2) What are ethers o are ethers classied

25) What is metamerism Give the structure and (- name of

metamers of 2ampethoxypropane

37) Write the mechanism for acidic dehydration of ethanol

31) o is diethyl ether prepared y continuous ethericationprocess Why is the process so called

32) o ill you prepared methoxyethane from

i) l8yl halide ii) ia=omethane

33) tate the important uses of i) -henol ii) diethyl ether

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 3538

34) Write the mechanism of action of hydrogen romide on tert

utyl methyl ether

3$) Explain the folloing reactions of anisole

i) romination ii) itration iii) 6riedelrafts al8ylation iv)6riedelrafts acylation

3) Explainlt i) 0he OD group attached to aromatic ring in

phenols and ii) 0he al8oxy group in al8yl aryl ethers are ortholt

para directing and activate the aromatic ring toars electrophilic

sustitution

3+) Write the chemical eCuations for Williamson synthesis of 2

Ethoxy2methypentane starting from ethanol and 2ampethylpentan2ol

3) n organic compound ith the formula 417D3 shos

properties of ether and alcohol hen treated ith an excess of

r yields only one compound 1lt2 diromomethane Write

structural formula of ether and that of alcohol

ALDEHYDES ETONES AND CABO$YLIC

ACID

1) Write the structure and give (- names of the folloing

compounds

i) chloropropionaldehyde

ii) Rhydroxyutyraldehyde

iii) isoutyraldehyde

iv) Rmethylvaleraldehyde

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 3638

v) isopropyl methyl 8etone

vi) diisopropyl 8etone

vii) mromoen=aldehyde

viii) dien=yl 8etone

ix) divinyl 8etone

x) allyl methyl 8etone

xi) ethyl phenyl 8etone

xii) nutyrophenone

2) Write the structure of folloing compounds

i) 4ampethyl3nitroen=ophenone ii) 2ampethyl4oxopentanal iii)

3Dxopentanoic acid iv) 4chloropropiophenone v) 3

ampethoxyutanal vi) 4ydroxycyclohaxane caraldehyde

3) o ill you prepare i) propiophenone from propanenitrile ii)

4chloroen=aldehyde from 4chlorotoluene iii)

yclohaxanecaraldehyde from cyclohexylmethanol iv) 4

methoxyacetophenone from anisole v) 4methylen=aldehydefrom toluene

4) rrange the folloing compounds in the increasing order of

their oiling points

i) dimethyl etherlt ethyl alcohollt propanelt acetaldehyde

ii) acetonelt npropyl alcohollt ethyl methyl alcohol and nutane

$) What is the action of hydrogen cyanide in asic medium on i)utanone ii) 2lt4dichloroen=aldehyde

) What is the action of folloing compounds on cyclohexanone in

presence of dry hydrogen chloride

i) ethyl alcohol ii) ethylene glycol

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 3738

+) Write the structure of product in the folloing reactions

i) 322D3

ii) $2D3

) Write the structures of caronyl compounds and ammonia

derivatives that comine to give folloing imines

i)

ii)

iii)

iv)v)

vi)

5) Write the chemical eCuations for aldol condensation or

anni==aro reaction that folloing compounds undergo

i) -ropanal ii) 2ampethylpropanal iii) -entanal iv) 3

ampethylutanal v) cetophenonevi) pampethoxyen=aldehyde vii) 2ampethylcyclohaxanone viii)

chloral ix) yclopentanone

x) -henyl acetaldehyde xi) 1-henylpropan1one

17) Write the structure of the maKor product of the folloing

crossed aldol condensation

i) formaldehyde and propionaldehydeii) en=aldehyde ith acetone

11) (dentify the compounds SBlt SB and SB in the folloing

reactions and rerite the complete eCuations

i)

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 3838

ii)

12)o ill you eect folloing tostep conversions

i) -ropanal into utanone ii) utanone into ut2ene iii)

en=ene into mromoacetophenone iv) ex3yne into exan

3one v) en=oic acid into mnitroen=ylalcohol

13) o ill you convert en=aldehyde into folloing compounds

ampore than one steps may e reCuired

i) en=ophenone ii) en=oic acid iii) 3-henylpropan1ol iv)hydroxyphenylacetic acid

14) Give a chemical test to distinguish eteen folloing pairs of

compounds

i) Ethanal and propanone ii) -rpopanal and propanone iii)

-entane2one and pentane3one

1$) Write the structure and (- names of folloing caroxylicacids

i) ltRdimethylutanoic acid ii) Rphenylutyric acid iii) 1038389

chloromethylvaleric acid

Page 32: Chemistry Question 12sci (1)

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 3238

i)

ii)

iii)

iv)

DDlt -ED E0E

1) What are alcohols o are they classied

2) What are monohydric alcohols o are they classied

4) Write the structures of folloing alcohols

i) 1Ethylcyclohexanol ii) ex3en2ol iii)yclohex2en1ol

iv) -entane1lt4diol

v) 2lt4imethylhexane1lt3lt$triol

$) Explain the folloing

i) -ropan1ol has higher oiling point than nutane

ii) ampethanol is more solule in ater than -ropan1ol

) Write the mechanism of hydration of ethylene to ethyl alcohol

+) -ropan1ol can not e prepared y acid catalyst hydration of

propenelt then ho is propene converted into propan1ol

)5) o is propanone converted into

i) -ropan2ol ii) 2ampethyl propan2ol

17) o ill you otain utan2ol from

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 3338

i) -ropanal ii) utan2one iii) ut2ene

11) o is propan1ol prepared from

i) -ropanal ii) -ropanoic acid

12) o is cyclopentanol prepared from

i) yclopentanone ii) yclopentene

14) Write the mechanism of acid catalysed dehydration of ethanol

to give ethane

1$) Write the structure of aldehyde lt caroxylic acid and ester

that yield folloing alcohol

1+) o ill you prepare

i) 2ampethylutane1ol from an al8ene

ii) cyclohexylmethanol from a Grignard reagent

iii) 1phenylethanol from acetaldehyde

1) o are folloing conversions rought aout

i) en=yl chloride to en=yl alcohol

ii) en=yl alcohol to en=oic acid

iii) 1Ethylcyclohexanol from yclohexanone

15) What are phenols o are they classied

27)21) Give the structures and (- names of isomeric phenols

represented y the molecular formula 17D

22) o is phenol prepared from

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 3438

i) hloroen=ene ii) (sopropyl en=ene iii) en=ene sulphonic

acid iv) aniline

23 ) Explain the folloing

i) -henol is more acidic than phenol

ii) onitrophenol is more acidic than ocresol

iii) pnitrophenol is less volatile than onitrophenol

24) Explain the folloing reactions of phenol

i) FoleBs reaction ii) iemer0iemann reaction

2$) ame the reagents used to convert phenol intoi) picric acid ii) 2lt4lt0riromophenol iii) en=ene iv) ophenol

sulphonic acid

2) What is the action of folloing reagents on phenol i)

romine in 2 at lo temperature

ii) ilute nitric acid at room temperature iii) oncentrated

sulphuric acid at room temperature

2+) Give distinguish test eteen phenol and ethanol

2) What are ethers o are ethers classied

25) What is metamerism Give the structure and (- name of

metamers of 2ampethoxypropane

37) Write the mechanism for acidic dehydration of ethanol

31) o is diethyl ether prepared y continuous ethericationprocess Why is the process so called

32) o ill you prepared methoxyethane from

i) l8yl halide ii) ia=omethane

33) tate the important uses of i) -henol ii) diethyl ether

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 3538

34) Write the mechanism of action of hydrogen romide on tert

utyl methyl ether

3$) Explain the folloing reactions of anisole

i) romination ii) itration iii) 6riedelrafts al8ylation iv)6riedelrafts acylation

3) Explainlt i) 0he OD group attached to aromatic ring in

phenols and ii) 0he al8oxy group in al8yl aryl ethers are ortholt

para directing and activate the aromatic ring toars electrophilic

sustitution

3+) Write the chemical eCuations for Williamson synthesis of 2

Ethoxy2methypentane starting from ethanol and 2ampethylpentan2ol

3) n organic compound ith the formula 417D3 shos

properties of ether and alcohol hen treated ith an excess of

r yields only one compound 1lt2 diromomethane Write

structural formula of ether and that of alcohol

ALDEHYDES ETONES AND CABO$YLIC

ACID

1) Write the structure and give (- names of the folloing

compounds

i) chloropropionaldehyde

ii) Rhydroxyutyraldehyde

iii) isoutyraldehyde

iv) Rmethylvaleraldehyde

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 3638

v) isopropyl methyl 8etone

vi) diisopropyl 8etone

vii) mromoen=aldehyde

viii) dien=yl 8etone

ix) divinyl 8etone

x) allyl methyl 8etone

xi) ethyl phenyl 8etone

xii) nutyrophenone

2) Write the structure of folloing compounds

i) 4ampethyl3nitroen=ophenone ii) 2ampethyl4oxopentanal iii)

3Dxopentanoic acid iv) 4chloropropiophenone v) 3

ampethoxyutanal vi) 4ydroxycyclohaxane caraldehyde

3) o ill you prepare i) propiophenone from propanenitrile ii)

4chloroen=aldehyde from 4chlorotoluene iii)

yclohaxanecaraldehyde from cyclohexylmethanol iv) 4

methoxyacetophenone from anisole v) 4methylen=aldehydefrom toluene

4) rrange the folloing compounds in the increasing order of

their oiling points

i) dimethyl etherlt ethyl alcohollt propanelt acetaldehyde

ii) acetonelt npropyl alcohollt ethyl methyl alcohol and nutane

$) What is the action of hydrogen cyanide in asic medium on i)utanone ii) 2lt4dichloroen=aldehyde

) What is the action of folloing compounds on cyclohexanone in

presence of dry hydrogen chloride

i) ethyl alcohol ii) ethylene glycol

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 3738

+) Write the structure of product in the folloing reactions

i) 322D3

ii) $2D3

) Write the structures of caronyl compounds and ammonia

derivatives that comine to give folloing imines

i)

ii)

iii)

iv)v)

vi)

5) Write the chemical eCuations for aldol condensation or

anni==aro reaction that folloing compounds undergo

i) -ropanal ii) 2ampethylpropanal iii) -entanal iv) 3

ampethylutanal v) cetophenonevi) pampethoxyen=aldehyde vii) 2ampethylcyclohaxanone viii)

chloral ix) yclopentanone

x) -henyl acetaldehyde xi) 1-henylpropan1one

17) Write the structure of the maKor product of the folloing

crossed aldol condensation

i) formaldehyde and propionaldehydeii) en=aldehyde ith acetone

11) (dentify the compounds SBlt SB and SB in the folloing

reactions and rerite the complete eCuations

i)

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 3838

ii)

12)o ill you eect folloing tostep conversions

i) -ropanal into utanone ii) utanone into ut2ene iii)

en=ene into mromoacetophenone iv) ex3yne into exan

3one v) en=oic acid into mnitroen=ylalcohol

13) o ill you convert en=aldehyde into folloing compounds

ampore than one steps may e reCuired

i) en=ophenone ii) en=oic acid iii) 3-henylpropan1ol iv)hydroxyphenylacetic acid

14) Give a chemical test to distinguish eteen folloing pairs of

compounds

i) Ethanal and propanone ii) -rpopanal and propanone iii)

-entane2one and pentane3one

1$) Write the structure and (- names of folloing caroxylicacids

i) ltRdimethylutanoic acid ii) Rphenylutyric acid iii) 1038389

chloromethylvaleric acid

Page 33: Chemistry Question 12sci (1)

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 3338

i) -ropanal ii) utan2one iii) ut2ene

11) o is propan1ol prepared from

i) -ropanal ii) -ropanoic acid

12) o is cyclopentanol prepared from

i) yclopentanone ii) yclopentene

14) Write the mechanism of acid catalysed dehydration of ethanol

to give ethane

1$) Write the structure of aldehyde lt caroxylic acid and ester

that yield folloing alcohol

1+) o ill you prepare

i) 2ampethylutane1ol from an al8ene

ii) cyclohexylmethanol from a Grignard reagent

iii) 1phenylethanol from acetaldehyde

1) o are folloing conversions rought aout

i) en=yl chloride to en=yl alcohol

ii) en=yl alcohol to en=oic acid

iii) 1Ethylcyclohexanol from yclohexanone

15) What are phenols o are they classied

27)21) Give the structures and (- names of isomeric phenols

represented y the molecular formula 17D

22) o is phenol prepared from

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 3438

i) hloroen=ene ii) (sopropyl en=ene iii) en=ene sulphonic

acid iv) aniline

23 ) Explain the folloing

i) -henol is more acidic than phenol

ii) onitrophenol is more acidic than ocresol

iii) pnitrophenol is less volatile than onitrophenol

24) Explain the folloing reactions of phenol

i) FoleBs reaction ii) iemer0iemann reaction

2$) ame the reagents used to convert phenol intoi) picric acid ii) 2lt4lt0riromophenol iii) en=ene iv) ophenol

sulphonic acid

2) What is the action of folloing reagents on phenol i)

romine in 2 at lo temperature

ii) ilute nitric acid at room temperature iii) oncentrated

sulphuric acid at room temperature

2+) Give distinguish test eteen phenol and ethanol

2) What are ethers o are ethers classied

25) What is metamerism Give the structure and (- name of

metamers of 2ampethoxypropane

37) Write the mechanism for acidic dehydration of ethanol

31) o is diethyl ether prepared y continuous ethericationprocess Why is the process so called

32) o ill you prepared methoxyethane from

i) l8yl halide ii) ia=omethane

33) tate the important uses of i) -henol ii) diethyl ether

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 3538

34) Write the mechanism of action of hydrogen romide on tert

utyl methyl ether

3$) Explain the folloing reactions of anisole

i) romination ii) itration iii) 6riedelrafts al8ylation iv)6riedelrafts acylation

3) Explainlt i) 0he OD group attached to aromatic ring in

phenols and ii) 0he al8oxy group in al8yl aryl ethers are ortholt

para directing and activate the aromatic ring toars electrophilic

sustitution

3+) Write the chemical eCuations for Williamson synthesis of 2

Ethoxy2methypentane starting from ethanol and 2ampethylpentan2ol

3) n organic compound ith the formula 417D3 shos

properties of ether and alcohol hen treated ith an excess of

r yields only one compound 1lt2 diromomethane Write

structural formula of ether and that of alcohol

ALDEHYDES ETONES AND CABO$YLIC

ACID

1) Write the structure and give (- names of the folloing

compounds

i) chloropropionaldehyde

ii) Rhydroxyutyraldehyde

iii) isoutyraldehyde

iv) Rmethylvaleraldehyde

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 3638

v) isopropyl methyl 8etone

vi) diisopropyl 8etone

vii) mromoen=aldehyde

viii) dien=yl 8etone

ix) divinyl 8etone

x) allyl methyl 8etone

xi) ethyl phenyl 8etone

xii) nutyrophenone

2) Write the structure of folloing compounds

i) 4ampethyl3nitroen=ophenone ii) 2ampethyl4oxopentanal iii)

3Dxopentanoic acid iv) 4chloropropiophenone v) 3

ampethoxyutanal vi) 4ydroxycyclohaxane caraldehyde

3) o ill you prepare i) propiophenone from propanenitrile ii)

4chloroen=aldehyde from 4chlorotoluene iii)

yclohaxanecaraldehyde from cyclohexylmethanol iv) 4

methoxyacetophenone from anisole v) 4methylen=aldehydefrom toluene

4) rrange the folloing compounds in the increasing order of

their oiling points

i) dimethyl etherlt ethyl alcohollt propanelt acetaldehyde

ii) acetonelt npropyl alcohollt ethyl methyl alcohol and nutane

$) What is the action of hydrogen cyanide in asic medium on i)utanone ii) 2lt4dichloroen=aldehyde

) What is the action of folloing compounds on cyclohexanone in

presence of dry hydrogen chloride

i) ethyl alcohol ii) ethylene glycol

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 3738

+) Write the structure of product in the folloing reactions

i) 322D3

ii) $2D3

) Write the structures of caronyl compounds and ammonia

derivatives that comine to give folloing imines

i)

ii)

iii)

iv)v)

vi)

5) Write the chemical eCuations for aldol condensation or

anni==aro reaction that folloing compounds undergo

i) -ropanal ii) 2ampethylpropanal iii) -entanal iv) 3

ampethylutanal v) cetophenonevi) pampethoxyen=aldehyde vii) 2ampethylcyclohaxanone viii)

chloral ix) yclopentanone

x) -henyl acetaldehyde xi) 1-henylpropan1one

17) Write the structure of the maKor product of the folloing

crossed aldol condensation

i) formaldehyde and propionaldehydeii) en=aldehyde ith acetone

11) (dentify the compounds SBlt SB and SB in the folloing

reactions and rerite the complete eCuations

i)

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 3838

ii)

12)o ill you eect folloing tostep conversions

i) -ropanal into utanone ii) utanone into ut2ene iii)

en=ene into mromoacetophenone iv) ex3yne into exan

3one v) en=oic acid into mnitroen=ylalcohol

13) o ill you convert en=aldehyde into folloing compounds

ampore than one steps may e reCuired

i) en=ophenone ii) en=oic acid iii) 3-henylpropan1ol iv)hydroxyphenylacetic acid

14) Give a chemical test to distinguish eteen folloing pairs of

compounds

i) Ethanal and propanone ii) -rpopanal and propanone iii)

-entane2one and pentane3one

1$) Write the structure and (- names of folloing caroxylicacids

i) ltRdimethylutanoic acid ii) Rphenylutyric acid iii) 1038389

chloromethylvaleric acid

Page 34: Chemistry Question 12sci (1)

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 3438

i) hloroen=ene ii) (sopropyl en=ene iii) en=ene sulphonic

acid iv) aniline

23 ) Explain the folloing

i) -henol is more acidic than phenol

ii) onitrophenol is more acidic than ocresol

iii) pnitrophenol is less volatile than onitrophenol

24) Explain the folloing reactions of phenol

i) FoleBs reaction ii) iemer0iemann reaction

2$) ame the reagents used to convert phenol intoi) picric acid ii) 2lt4lt0riromophenol iii) en=ene iv) ophenol

sulphonic acid

2) What is the action of folloing reagents on phenol i)

romine in 2 at lo temperature

ii) ilute nitric acid at room temperature iii) oncentrated

sulphuric acid at room temperature

2+) Give distinguish test eteen phenol and ethanol

2) What are ethers o are ethers classied

25) What is metamerism Give the structure and (- name of

metamers of 2ampethoxypropane

37) Write the mechanism for acidic dehydration of ethanol

31) o is diethyl ether prepared y continuous ethericationprocess Why is the process so called

32) o ill you prepared methoxyethane from

i) l8yl halide ii) ia=omethane

33) tate the important uses of i) -henol ii) diethyl ether

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 3538

34) Write the mechanism of action of hydrogen romide on tert

utyl methyl ether

3$) Explain the folloing reactions of anisole

i) romination ii) itration iii) 6riedelrafts al8ylation iv)6riedelrafts acylation

3) Explainlt i) 0he OD group attached to aromatic ring in

phenols and ii) 0he al8oxy group in al8yl aryl ethers are ortholt

para directing and activate the aromatic ring toars electrophilic

sustitution

3+) Write the chemical eCuations for Williamson synthesis of 2

Ethoxy2methypentane starting from ethanol and 2ampethylpentan2ol

3) n organic compound ith the formula 417D3 shos

properties of ether and alcohol hen treated ith an excess of

r yields only one compound 1lt2 diromomethane Write

structural formula of ether and that of alcohol

ALDEHYDES ETONES AND CABO$YLIC

ACID

1) Write the structure and give (- names of the folloing

compounds

i) chloropropionaldehyde

ii) Rhydroxyutyraldehyde

iii) isoutyraldehyde

iv) Rmethylvaleraldehyde

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 3638

v) isopropyl methyl 8etone

vi) diisopropyl 8etone

vii) mromoen=aldehyde

viii) dien=yl 8etone

ix) divinyl 8etone

x) allyl methyl 8etone

xi) ethyl phenyl 8etone

xii) nutyrophenone

2) Write the structure of folloing compounds

i) 4ampethyl3nitroen=ophenone ii) 2ampethyl4oxopentanal iii)

3Dxopentanoic acid iv) 4chloropropiophenone v) 3

ampethoxyutanal vi) 4ydroxycyclohaxane caraldehyde

3) o ill you prepare i) propiophenone from propanenitrile ii)

4chloroen=aldehyde from 4chlorotoluene iii)

yclohaxanecaraldehyde from cyclohexylmethanol iv) 4

methoxyacetophenone from anisole v) 4methylen=aldehydefrom toluene

4) rrange the folloing compounds in the increasing order of

their oiling points

i) dimethyl etherlt ethyl alcohollt propanelt acetaldehyde

ii) acetonelt npropyl alcohollt ethyl methyl alcohol and nutane

$) What is the action of hydrogen cyanide in asic medium on i)utanone ii) 2lt4dichloroen=aldehyde

) What is the action of folloing compounds on cyclohexanone in

presence of dry hydrogen chloride

i) ethyl alcohol ii) ethylene glycol

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 3738

+) Write the structure of product in the folloing reactions

i) 322D3

ii) $2D3

) Write the structures of caronyl compounds and ammonia

derivatives that comine to give folloing imines

i)

ii)

iii)

iv)v)

vi)

5) Write the chemical eCuations for aldol condensation or

anni==aro reaction that folloing compounds undergo

i) -ropanal ii) 2ampethylpropanal iii) -entanal iv) 3

ampethylutanal v) cetophenonevi) pampethoxyen=aldehyde vii) 2ampethylcyclohaxanone viii)

chloral ix) yclopentanone

x) -henyl acetaldehyde xi) 1-henylpropan1one

17) Write the structure of the maKor product of the folloing

crossed aldol condensation

i) formaldehyde and propionaldehydeii) en=aldehyde ith acetone

11) (dentify the compounds SBlt SB and SB in the folloing

reactions and rerite the complete eCuations

i)

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 3838

ii)

12)o ill you eect folloing tostep conversions

i) -ropanal into utanone ii) utanone into ut2ene iii)

en=ene into mromoacetophenone iv) ex3yne into exan

3one v) en=oic acid into mnitroen=ylalcohol

13) o ill you convert en=aldehyde into folloing compounds

ampore than one steps may e reCuired

i) en=ophenone ii) en=oic acid iii) 3-henylpropan1ol iv)hydroxyphenylacetic acid

14) Give a chemical test to distinguish eteen folloing pairs of

compounds

i) Ethanal and propanone ii) -rpopanal and propanone iii)

-entane2one and pentane3one

1$) Write the structure and (- names of folloing caroxylicacids

i) ltRdimethylutanoic acid ii) Rphenylutyric acid iii) 1038389

chloromethylvaleric acid

Page 35: Chemistry Question 12sci (1)

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 3538

34) Write the mechanism of action of hydrogen romide on tert

utyl methyl ether

3$) Explain the folloing reactions of anisole

i) romination ii) itration iii) 6riedelrafts al8ylation iv)6riedelrafts acylation

3) Explainlt i) 0he OD group attached to aromatic ring in

phenols and ii) 0he al8oxy group in al8yl aryl ethers are ortholt

para directing and activate the aromatic ring toars electrophilic

sustitution

3+) Write the chemical eCuations for Williamson synthesis of 2

Ethoxy2methypentane starting from ethanol and 2ampethylpentan2ol

3) n organic compound ith the formula 417D3 shos

properties of ether and alcohol hen treated ith an excess of

r yields only one compound 1lt2 diromomethane Write

structural formula of ether and that of alcohol

ALDEHYDES ETONES AND CABO$YLIC

ACID

1) Write the structure and give (- names of the folloing

compounds

i) chloropropionaldehyde

ii) Rhydroxyutyraldehyde

iii) isoutyraldehyde

iv) Rmethylvaleraldehyde

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 3638

v) isopropyl methyl 8etone

vi) diisopropyl 8etone

vii) mromoen=aldehyde

viii) dien=yl 8etone

ix) divinyl 8etone

x) allyl methyl 8etone

xi) ethyl phenyl 8etone

xii) nutyrophenone

2) Write the structure of folloing compounds

i) 4ampethyl3nitroen=ophenone ii) 2ampethyl4oxopentanal iii)

3Dxopentanoic acid iv) 4chloropropiophenone v) 3

ampethoxyutanal vi) 4ydroxycyclohaxane caraldehyde

3) o ill you prepare i) propiophenone from propanenitrile ii)

4chloroen=aldehyde from 4chlorotoluene iii)

yclohaxanecaraldehyde from cyclohexylmethanol iv) 4

methoxyacetophenone from anisole v) 4methylen=aldehydefrom toluene

4) rrange the folloing compounds in the increasing order of

their oiling points

i) dimethyl etherlt ethyl alcohollt propanelt acetaldehyde

ii) acetonelt npropyl alcohollt ethyl methyl alcohol and nutane

$) What is the action of hydrogen cyanide in asic medium on i)utanone ii) 2lt4dichloroen=aldehyde

) What is the action of folloing compounds on cyclohexanone in

presence of dry hydrogen chloride

i) ethyl alcohol ii) ethylene glycol

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 3738

+) Write the structure of product in the folloing reactions

i) 322D3

ii) $2D3

) Write the structures of caronyl compounds and ammonia

derivatives that comine to give folloing imines

i)

ii)

iii)

iv)v)

vi)

5) Write the chemical eCuations for aldol condensation or

anni==aro reaction that folloing compounds undergo

i) -ropanal ii) 2ampethylpropanal iii) -entanal iv) 3

ampethylutanal v) cetophenonevi) pampethoxyen=aldehyde vii) 2ampethylcyclohaxanone viii)

chloral ix) yclopentanone

x) -henyl acetaldehyde xi) 1-henylpropan1one

17) Write the structure of the maKor product of the folloing

crossed aldol condensation

i) formaldehyde and propionaldehydeii) en=aldehyde ith acetone

11) (dentify the compounds SBlt SB and SB in the folloing

reactions and rerite the complete eCuations

i)

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 3838

ii)

12)o ill you eect folloing tostep conversions

i) -ropanal into utanone ii) utanone into ut2ene iii)

en=ene into mromoacetophenone iv) ex3yne into exan

3one v) en=oic acid into mnitroen=ylalcohol

13) o ill you convert en=aldehyde into folloing compounds

ampore than one steps may e reCuired

i) en=ophenone ii) en=oic acid iii) 3-henylpropan1ol iv)hydroxyphenylacetic acid

14) Give a chemical test to distinguish eteen folloing pairs of

compounds

i) Ethanal and propanone ii) -rpopanal and propanone iii)

-entane2one and pentane3one

1$) Write the structure and (- names of folloing caroxylicacids

i) ltRdimethylutanoic acid ii) Rphenylutyric acid iii) 1038389

chloromethylvaleric acid

Page 36: Chemistry Question 12sci (1)

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 3638

v) isopropyl methyl 8etone

vi) diisopropyl 8etone

vii) mromoen=aldehyde

viii) dien=yl 8etone

ix) divinyl 8etone

x) allyl methyl 8etone

xi) ethyl phenyl 8etone

xii) nutyrophenone

2) Write the structure of folloing compounds

i) 4ampethyl3nitroen=ophenone ii) 2ampethyl4oxopentanal iii)

3Dxopentanoic acid iv) 4chloropropiophenone v) 3

ampethoxyutanal vi) 4ydroxycyclohaxane caraldehyde

3) o ill you prepare i) propiophenone from propanenitrile ii)

4chloroen=aldehyde from 4chlorotoluene iii)

yclohaxanecaraldehyde from cyclohexylmethanol iv) 4

methoxyacetophenone from anisole v) 4methylen=aldehydefrom toluene

4) rrange the folloing compounds in the increasing order of

their oiling points

i) dimethyl etherlt ethyl alcohollt propanelt acetaldehyde

ii) acetonelt npropyl alcohollt ethyl methyl alcohol and nutane

$) What is the action of hydrogen cyanide in asic medium on i)utanone ii) 2lt4dichloroen=aldehyde

) What is the action of folloing compounds on cyclohexanone in

presence of dry hydrogen chloride

i) ethyl alcohol ii) ethylene glycol

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 3738

+) Write the structure of product in the folloing reactions

i) 322D3

ii) $2D3

) Write the structures of caronyl compounds and ammonia

derivatives that comine to give folloing imines

i)

ii)

iii)

iv)v)

vi)

5) Write the chemical eCuations for aldol condensation or

anni==aro reaction that folloing compounds undergo

i) -ropanal ii) 2ampethylpropanal iii) -entanal iv) 3

ampethylutanal v) cetophenonevi) pampethoxyen=aldehyde vii) 2ampethylcyclohaxanone viii)

chloral ix) yclopentanone

x) -henyl acetaldehyde xi) 1-henylpropan1one

17) Write the structure of the maKor product of the folloing

crossed aldol condensation

i) formaldehyde and propionaldehydeii) en=aldehyde ith acetone

11) (dentify the compounds SBlt SB and SB in the folloing

reactions and rerite the complete eCuations

i)

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 3838

ii)

12)o ill you eect folloing tostep conversions

i) -ropanal into utanone ii) utanone into ut2ene iii)

en=ene into mromoacetophenone iv) ex3yne into exan

3one v) en=oic acid into mnitroen=ylalcohol

13) o ill you convert en=aldehyde into folloing compounds

ampore than one steps may e reCuired

i) en=ophenone ii) en=oic acid iii) 3-henylpropan1ol iv)hydroxyphenylacetic acid

14) Give a chemical test to distinguish eteen folloing pairs of

compounds

i) Ethanal and propanone ii) -rpopanal and propanone iii)

-entane2one and pentane3one

1$) Write the structure and (- names of folloing caroxylicacids

i) ltRdimethylutanoic acid ii) Rphenylutyric acid iii) 1038389

chloromethylvaleric acid

Page 37: Chemistry Question 12sci (1)

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 3738

+) Write the structure of product in the folloing reactions

i) 322D3

ii) $2D3

) Write the structures of caronyl compounds and ammonia

derivatives that comine to give folloing imines

i)

ii)

iii)

iv)v)

vi)

5) Write the chemical eCuations for aldol condensation or

anni==aro reaction that folloing compounds undergo

i) -ropanal ii) 2ampethylpropanal iii) -entanal iv) 3

ampethylutanal v) cetophenonevi) pampethoxyen=aldehyde vii) 2ampethylcyclohaxanone viii)

chloral ix) yclopentanone

x) -henyl acetaldehyde xi) 1-henylpropan1one

17) Write the structure of the maKor product of the folloing

crossed aldol condensation

i) formaldehyde and propionaldehydeii) en=aldehyde ith acetone

11) (dentify the compounds SBlt SB and SB in the folloing

reactions and rerite the complete eCuations

i)

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 3838

ii)

12)o ill you eect folloing tostep conversions

i) -ropanal into utanone ii) utanone into ut2ene iii)

en=ene into mromoacetophenone iv) ex3yne into exan

3one v) en=oic acid into mnitroen=ylalcohol

13) o ill you convert en=aldehyde into folloing compounds

ampore than one steps may e reCuired

i) en=ophenone ii) en=oic acid iii) 3-henylpropan1ol iv)hydroxyphenylacetic acid

14) Give a chemical test to distinguish eteen folloing pairs of

compounds

i) Ethanal and propanone ii) -rpopanal and propanone iii)

-entane2one and pentane3one

1$) Write the structure and (- names of folloing caroxylicacids

i) ltRdimethylutanoic acid ii) Rphenylutyric acid iii) 1038389

chloromethylvaleric acid

Page 38: Chemistry Question 12sci (1)

8112019 Chemistry Question 12sci (1)

httpslidepdfcomreaderfullchemistry-question-12sci-1 3838

ii)

12)o ill you eect folloing tostep conversions

i) -ropanal into utanone ii) utanone into ut2ene iii)

en=ene into mromoacetophenone iv) ex3yne into exan

3one v) en=oic acid into mnitroen=ylalcohol

13) o ill you convert en=aldehyde into folloing compounds

ampore than one steps may e reCuired

i) en=ophenone ii) en=oic acid iii) 3-henylpropan1ol iv)hydroxyphenylacetic acid

14) Give a chemical test to distinguish eteen folloing pairs of

compounds

i) Ethanal and propanone ii) -rpopanal and propanone iii)

-entane2one and pentane3one

1$) Write the structure and (- names of folloing caroxylicacids

i) ltRdimethylutanoic acid ii) Rphenylutyric acid iii) 1038389

chloromethylvaleric acid