Kimia Kertas 2 EWaris 2016 Edit

7/25/2019 Kimia Kertas 2 EWaris 2016 Edit

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Section ABahagian A

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[60 marks]

[60 markah]

Answer all the questions in this section.

Jawab sema soalan !alam bahagian ini"

1 Table 1 shows the proton number and nucleon number of atoms A, B, , ! and ".Ja!al 1 menn#kkan nombor $roton !an nombor nkleon bagi atom A% B% &% ' !an("

Atom of element

Atom nsr

#roton number

)ombor $roton

$ucleon number

)ombor nkleon

A

B

&

'

(

%.&

%.&.1

%.&.6

%.&.6

%.&.&

Table 1

Ja!al 1

%0

%'

'%

''

(0

a) i) *hat is meant b+ nucleon number

A$akah *ang !imaks!kan !engan nombor nkleon+

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[1 mark1 markah]

ii) *rite the electron arran/ement for B ion.

Tliskan ssnan elektron bagi ion B"

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[1 mark1 markah]

b) i) *hich pair of atoms are isotopes

,asangan atom *ang manakah mer$akan isoto$+

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ii) ie the reason for +our answer in 12b) 2i).

Berikan sebab bagi #awa$an an!a !i 1 -b.-i."

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[1 mark1 markah]

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c) i) Balance the followin/ chemical equation3

Seimbangkan $ersamaan kimia berikt

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44#b2$5')% 2s) 44#b52s) 44$5% 2/) 5%2/)

[1 mark1 markah]

ii) 7nterpret the equation alitati3el* and antitati3el*"Jelaskan $ersamaan kimia !i atas secara kalitati !an kantitati"

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iii) 1'.%( / lead 277) nitrate is heated. alculate the nmber o o*gen gas moleclesformed.

[8elatie Atomic 9ass3 #b:%0;, $:1(, 5:16, 9olar olume of /as : %( dm' mol


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2 !ia/ram 1 shows the position of elements ,% >% 7% S% T% ? and @ in the #eriodic Table of "lements. The letters ,% >% 7% S% T% ? and @ are not the actual s+mbols of the elements.

7a#ah 1 menn#kkan ke!!kan nsr ,% >% 7% S% T% ? !an @ !alam Ja!al BerkalaUnsr"6r=hr ,% >% 7% S% T% ? !an @ bkan simbol sebenar bagi nsr=nsr it"

!ia/ram 1

7a#ah 1

a) i) ien 8elatie Atomic 9ass of element > is (. *rite the s+mbol of element > in

standard representation .

Jisim Atom 7elati bagi nsr ? ialah 4" Tliskan simbol bagi nsr ? !alam$erwakilan$iawai "

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[1 mark1 markah]

ii) Arran/e element #, ?, 8, @ and T in ascendin/ order of atomic sie.

Ssn nsr ,% >% 7% S !an T !alam tertib menaik sai atom"

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[1 mark1 markah]

b) i) @tate the element that reacts i/orousl+ with cold water.

)*atakan nsr *ang bertin!ak balas cergas !engan air se#k"

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[1 mark1 markah]

ii) @tate one obseration when a few drops of phenolphthalein is added to the solutionproduced in 2b) 2i).

)*atakan sat $emerhatian a$abila bebera$a titik enoltalein !itambahkan ke !alamlartan

*ang !ihasilkan !i -b.-i."----------------------------------------------------------------------

[1 mark1 markah]

iii) ie reason to +our answer in 2b)2ii).

Berikan sebab bagi #awa$an an!a !i -b.-ii."

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c) i) hoose one element that can act as catal+st.

,ilih sat nsr *ang boleh bertin!ak sebagai mangkin

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ii) @tate one ph+sical propert+ of the element in 2c)2i).

)*atakan sat siat ik bagi nsr !i -c.-i."

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[1 mark1 markah]

d) i) *rite the molecular formula formed between # and ? element.

Tliskan ormla molekl *ang terbentk antara nsr , !an >"

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[1 mark1 markah]

ii) "=plain wh+ the compound in 2d)2i) hae relatiel+ low boilin/ point.

Terangkan menga$a sebatian !i -!.-i. mem$n*ai takat lebr *angren!ah"

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0 !ia/ram % shows the apparatus set up to stud+ the electrol+sis of 0.01 mol dm


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olume cm'

Isi$a! / cm0

Time s

Hasa / s

[1 mark1 markah]

c) i) Based on the /raph aboe 2b), compare the rate of reaction between "=periment 7 and"=periment 77.

Ber!asarkan ke$a!a gra !i atas -b.% ban!ingkan ka!ar tin!ak balas antara (ks$erimen I!an(ks$erimen II"

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[1 mark1 markah]

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ii)

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"=plain the difference in the rate of reaction between "=periment 7 and "=periment 77 in

2c)2i) with reference to the ollision Theor+.

Terangkan $erbeaan ka!ar tin!ak balas antara (ks$erimen I !an (ks$erimen II !i -c.-i.ber!asarkan ke$a!a Teori ,erlanggaran"

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[( marks( markah]

< !ia/ram ( shows the set


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c) $ame the process that occurs at the electrod F.

)amakan $roses *ang berlak !i elektro! "

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d) Gabel the flow of electron in !ia/ram (.

Labelkan $engaliran elektron !alam 7a#ah 4"

[1 mark1 markah]

e) @tate the function of diluted sulphuric acid.

)*atakan ngsi bagi asi! slrik cair"

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[1 mark1 markah]

f) i) @tate one obseration at electrod D.)*atakan sat $emerhatian !i elektro! D"

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ii) *rite half


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Section B Bahagian B [%0 marks] 29 markah]

Answer one question from this section.Jawab sat soalan !ari$a!a bahagian ini"

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: a) !ia/ram C shows the electron arran/ement of 9' ion.7a#ah 5 menn#kkan ssnan electron bagi ion H0"

n neutron

nH netron

= electron

=elektron

'iagram 57a#ah 5

i) @tate the alence electron of 9 atom.)*atakan elektron 3alens bagi atom H"

[1 mark1 markah]

ii) @tate the position of 9 atom in the #eriodic Table of "lement. ie +our reasons.)*atakan ke!!kan atom H !alam Ja!al Berkala Unsr" Berikan sebab=sebab an!a" [( marks( markah]

iii) 9 atom reacts with o=+/en to form o=ide 9.

The chemical equation for reaction 9 with o=+/en is show as3

Atom H bertin!ak balas !engan oksigen membentk oksi!a H",ersamaan kimia bagi tin!ak balas H !engan oksigen a!alah se$erti berikt

(9 '5%K %9%5'

ien that the 8elatie Atomic 9ass of 9 : %; and 5 : 16I 1 mol of /as occupies %( dm ' at

room condition.

alculate the olume of o=+/en /as needed to react with 1'.C/ of 9 metal at room condition.

'iberi Jisim Atom 7elati H 82:% ; 81


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b) Table ( shows the proton number of element *, D, F, E.

Ja!al 4 menn#kkan nombor $roton bagi nsr @% D% % G"

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"lement

Unsr*

1

Table 4Ja!al 4

D

;

F

K

E

1%#roton number

)ombor $roton

!escribe how chemical bonds are formed between

6raikan bagaimana ikatan kimia *ang terbentk antarai) F and E

!an G

[; marks; markah]

ii) * and D

@ !an D

[C marksC markah]

E a) Ammonia is produced in the industr+ usin/ nitro/en /as and h+dro/en /as.*rite a chemical equation for the reaction.

Ammonia !ihasilkan !i !alam in!stri menggnakan gas nitrogen !an gashi!rogen"Tliskan sat $ersamaan kimia ntk tin!ak balas tersebt" [% marks% markah]

b) i) !ia/ram 6 shows two t+pes of ammonium fertiliser that are commonl+ used in plantation.

alculate the percenta/e of nitro/en in each fertilier and choose the best fertiliser withreason.

8elatif Atomic 9ass 3 :1%I 5 :16I $:1(I :1I @: '%]

7a#ah < menn#kkan !a #enis ba#a ammonim *ang biasa !ignakan !alam $enanaman"6itngkan$erats nitrogen bagi setia$ ba#a berikt !an $ilih ba#a *ang $aling baik !engan sebab"Jisim Atom 7elati &812 ; 81


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ii)

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@tate two enironmental problems caused b+ chemical fertilisers.

)*atakan !a masalah alam sekitar timbl !ari$a!a $enggnaan ba#akimia [% marks% markah]

c) Both /lass and ceramic are used widel+ in our dail+ life.

Ce!a=!a kaca !an seramik !ignakan secara melas !alam kehi!$an hariankita"

i) ie the chemical name of the main component in /lass and ceramic.

Berikan nama kimia bagi kom$onen tama !alam kaca !anseramik" [% marks% markah]

ii) ompare and contrast /lass and ceramic.

Ban!ing !an beakan kaca !an seramik"

[' marks' markah]

iii) !ia/ram ; shows the ceramic used in electrical pole.

@tate two ph+sical properties of ceramics.7a#ah : menn#kkan seramik *ang !ignakan !alam tiangelektrik")*atakan !a siat ik bagi seramik"

[% marks% markah]

d) !ia/ram & shows two different t+pes of pol+mer, D and F.

7a#ah E menn#kkan !a #enis $olimer *ang berbea% D !an "

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1) o=ide powder

B+ usin/ the apparatus and materials proided, !escribe an e$eriment to determine the effectof catal+st on the rate of decomposition of h+dro/en pero=ide.Four answer should include the

followin/3 Gabelled dia/ram

#rocedure of the s$linter"e=periment

woo!en

5bseration and chemical equation

onclusion

An!a !ibekalkan !engan

Lartan hi!rogen $eroksi!a% serbk mangan -I?. oksi!a

'engan menggnakan ra!as !an bahan *ang !ibekalkan% hraikan sat eks$erimen

bagimenentkan kesan mangkin terha!a$ ka!ar $engraian hi!rogen $eroksi!a"Jawa$anan!amesti mem$n*ai $erkara berikt

7a#ah berlabel,rose!r eks$erimenwoo!en s$linter",emerhatian !an $ersamaan kimiaCesim$lan

[10 marks 10 markah]

19 a) !efine isomers.

Takrikan isomer[1 mark 1 markah]

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b)

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!ia/ram K shows the structural formula of fie carbon compounds. Answer thefollowin/ questions based on !ia/ram K.

7a#ah F menn#kkan ormla strktr bagi lima sebatian karbon" Jawab soalan=soalan

berikt ber!asarkan 7a#ah F"

i)

'iagram F 7a#ah F@tate the compounds which are isomers.

)*atakan sebatian=sebatian *ang mer$akan isomer"

[1 mark 1 markah]

ii) 7dentif+ the compounds which are h+drocarbon. ie +our reason.

Cenal$asti sebatian *ang mer$akan hi!rokarbon" Berikan sebaban!a [% marks % markah]

iii) $ame compound A and B.

)amakan sebatian A !an B"[% marks % markah]

i) !escribe a chemical test to differentiate compound and !.

6raikan sat #ian kimia ntk membeakan sebatian & !an'" [' marks ' markah]

) A student intends to prepare an ester from !ia/ram K.

'escribe a laborator* e$eriment to prepare the ester. Four answer should include the followin/ 3

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A list of materials

#rocedure of the e=periment

5bseration and chemical equation

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Seorang $ela#ar ingin men*e!iakan se#enis ester !ari$a!a 7a#ah F"6raikan sat eks$erimen makmal ntk men*e!iakan ester tersebt" Jawa$an an!amesti mem$n*ai $erkara berikt

Senarai bahan kimia

,rose!r eks$erimen

,emerhatian !an $ersamaan kimia"

[10 marks 10 markah]

O()' ;P >U(STI;) ,A,(7O

C(7TAS S;ALA) TAHAT

I)P;7HATI;) P;7 &A)'I'AT(

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HACLUHAT U)TUC &AL;)

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1.

%.

This question paper consists of three sections3 @ection A, @ection B and @ection .

Certas soalan ini mengan!ngi tiga bahagian Bahagian A% Bahagian B !an Bahagian&"Answer all questions in @ection A. *rite +our answers for @ection A in the spaces

proided in the question paper.

Jawab sema soalan !alam Bahagian A" Tlis #awa$an bagi Bahagian A !alamrang

ang !ise!iakan !alam kertas soalan"

'. Answer one question from @ection B and one question from @ection . *rite +our

answers for @ection B and @ection in the lined pa/es at the end of the question paper.

Answer questions in @ection B and @ection in detail. Fou ma+ use equations,

dia/rams, tables, /raphs and an+ other suitable method to e=plain +our answer.

Jawab sat soalan !ari$a!a Bahagian B !an sat soalan !ari$a!a Bahagian&"Tliskan #awa$an bagi Bahagian B !an Bahagian & $a!a halaman bergaris !i bahagianakhirkertas soalan ini" Jawab Bahagian B !an Bahagian & !engan ter$erinci" An!abolehmenggnakan $ersamaan% gambar ra#ah% #a!al% gra !an cara lain *ang sesaintkmen#elaskan #awa$an an!a"

(.

C.

6.

The dia/rams in the questions are not drawn to scale unless stated.

7a#ah *ang mengiringi soalan ti!ak !ilkis mengikt skala kecali!in*atakan"9arks allocated for each question or parts are shown in brackets.

Harkah *ang !i$erntkkan bagi setia$ soalan ata ceraian soalan !itn#kkan !alamkrngan"The time su//ested to complete @ection A is K0 minutes, @ection B is '0 minutes and

@ection is '0 minutes.

Hasa *ang !ica!angkan ntk men#awab Bahagian A ialah F9 minit% Bahagian B ialah 09minit!an Bahagian & ialah 09 minit"

;.

&.

Fou ma+ use a non


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Kimia Kertas 2 EWaris 2016 Edit