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SOS HERMANN GMEINER SCHOOL
HOLIDAY HOMEWORK IX-XII 2018-19
Summer Vacations are just round the corner. To keep our little ones indoors in the
sweltering heat and to utilize their time with constructive and creative activities, we
are sending a few assignments that would help the children get a grasp of the work
done in the school.
For The Parents
Be a Friend: Play games with your child like – Ludo, Carom-board or scrabble.
Explore Nature: Take your child for morning walk, count trees, cars, stones, flowers, etc.
while going for a walk.
For The Students
‘Books Can Be Our Best Friends’
Reading time: Reading story books enhances Language and Vocabulary development.
Make bed time reading a regular practice.
ENGLISH
1. Compose a poem on any of the agent of nature like Trees, Rivers, Wind, Clouds,
Flowers. The poem should be meaningful and must consist 3-4 stanzas. Do on A3 size sheet
creatively with the help of pictures.
2. Write a diary entry to record your feelings after being a part of SEVAM campaign to make
Faridabad a clean city. You can give details how you joined it and what efforts are you doing
to contribute this campaign.
3. Write an article in 120 – 150 words on any one of the given topics:
1.Tourism in India, 2.Books are our best companions, 3.treatment of animals in circus,
Beauty is in the eyes of beholder.
-Do above given Q.2 &3 on A4 size sheet creatively by pasting pictures related to the article.
-Cover your English notebook nicely and beautifully as such it speaks ‘I am English notebook
and the most decent one’.
MATHS
Learn by heart ( Tables from 1 to 25 daily).
Learn squares of numbers 1 to 30 and cubes of numbers 1 to15.
Practice 'Number System, Polynomial from NCERT and R. S. Aggarwal.
Project Work : Write a paragraph on
" History of Mathematics and beautify it with pictures of great mathematician's and their
theorems.
To design a 6 lane racing track of 400 metres.
Note - Work should be done on remedial notebook.
HINDI
नोट: ग्रीष्म अवकाश में दिया गया कायय स ुंिर लेख में अपनी उपचारात्मक कायय प स्तिका में कीदिए।
1. द ुंिी, सुंसृ्कत व उिद य भाषा के दकन्ी ुं िस-िस उपसगय और प्रत्यय का प्रयोग कर िो – िो शब्द दलस्तखए।
2. सै्क्रप ब क में दकन्ी ुं पााँच प्रदसद्ध व्यस्तियोुं के साक्षात्कार दचपकाइये।
3. प्रते्यक अलुंकार केपााँच – पााँच उिा रण दलखकर याि कीदिए।
4. औपचाररक पत्र व अनौपचाररक पत्र के िो - िो उिा रण दलस्तखए।
5. कक्षा में कराया गया सुंपदणय पाठ्यक्रम िो राइए व याि कीदिए।
CLASS IX
SCIENCE
Lets take a pledge to save air from getting polluted.
1) Now its time to have some positive action so prepare a working model with its project
report . Making a device for controlling smoke pollution and production of electricity.
2) Make a PPT of your choice from any topic of your interest from your syllabus.
3) Learn assignments given for Pre Mid Term.
TAKE CARE OF YOUR HEALTH, LEARN ANY ONE HOBBY OF YOUR CHOICE AND
ENJOY YOUR HOLIDAYS.
COMPUTER
Unit 1 - Find 20 question of one mark from the unit
Make PowerPoint presentation as directed below:
Roll no 1-10 – online education
Roll no 11-20- Generation of language
Roll no 21-30 – artificial intelligence
Roll no 31 onwards –yoga power your body
SOCIAL STUDIES
Prepare a project file with following details:
1. The total length of the project report should not be more than 15 written pages of foolscap
size (A-4 size) sheet.
2. The project report should be handwritten and credit will be awarded to original drawings,
illustrations and creative use of eco-friendly material.
3. The project report should be presented in a neatly bound simple folder.
4. The project report should be developed and presented in this order
a) Cover page: showing project title, student information, school and year.
List of contents: with page numbers.
b) Certificate page
c) Acknowledgements: (acknowledging the institution, offices and libraries visited and
persons who have helped).
d) Chapters: with relevant headings.
e) Summary and conclusions: based on findings.
f) Bibliography: should have the Title, author, publisher and if a website the name of the
website with the specific website link which has been used.
Suggested Projects [Do any one project]
1. Identify the different hazards that your area is prone to and list them into three broad
headings;viz; natural, socio-natural and human induced. Enumerate some ways through
which the impact of these can be reduced.
2. Preparedness for a disaster –Are you prepared ?Identify your role as a student , as a family
member and as a member of RWA in pre, during and post disaster situation
3. Mitigation strategy for natural disasters like floods, earthquakes, landslides and cyclones.
4. Mitigation strategy for human induced disasters like nuclear accidents, chemical and
industrial accidents and biological disasters.
Community gets the first hand experience of
sufferings at the time of a disaster and becomes a
saviour of lives at the same time. Discuss the
community’s disaster preparedness and response
plan with suitable case studies.
ENGLISH
I. Write review of any of the following story on a chart:
1. Delhi is not far-Ruskin Bond
2. Something Happened on the Way to Heaven- SudhaMurty
3. As you like it-William Shakespeare
4. To Kill a Mockingbird-Harper Lee.
5. The Kite Runner - Khaled Hosseini
The topics to be covered are:
a. plot
b. characters
c. moral
d. why do/don’t like the story
e. related pictures
II. IN ASSIGNMENT PLUS:
1. Complete Diagnostic Test No. 3 & 4 given in Vol.-2 of the following chapters:
a. The two gentlemen of Verona
b. Mrs. Packletide’s Tiger
c. The Letter
d. The Frog and the Nightingale
2. Unseen Passages given in Vol.-1
1. Assignment-1 given on Pg-25 (Factual passage)
2. Assignment-2 given on Pg-27 (Factual passage)
3. Assignment-3 given on Pg-29 (Factual passage)
3. Writing Section given in Vol-1
1. Assignment-1 given on Pg-97 (Letter of placing orders and Story writing)
2. Assignment-2 given on Pg-99 (Complaint Letter and Story writing)
III. Novel-(The story of my life-Helen Keller)
Write character sketch of the following characters in the class notebook:
1. Helen Keller
2. Kate Adams (Helen’s Mother)
3. Arthur H. Keller (Helen’s Father)
4. Martha (Cook’s daughter)
CLASS X
MATHS
1. Learn by Heart -: tables from 2 to 25 and revise daily for 10 minutes
2. Learn Squares of 1 to 30 and cube of 1 to 15
3. NCERT -: Real Numbers and polynomials from NCERT and R.S. Aggarwal on Remedial
note book
4. Project Work -: Pascal Triangle E.g. To explore the pascal tri. And generalize the expansion
of a binomial expression (a + b)n
5. Sequence -: To visualize a infinite series.
HINDI
1. रस की पररभाषा व भेि उिा रण सद त दिखाते हुए एक ppt तैयार कीदिए।
2. सै्क्रपब क में दकन्ी 10 वि ओुं के दवज्ञापन दचपकाइए।
3. वाच्य व उसके भेिोुं की पररभाषा पााँच-पााँच उिा रण सद त दलस्तखए।
4. औपचाररक पत्र व अनौपचाररक पत्र के िो-िो उिा रण दलस्तखए।
5. कक्षा में कराया गया सुंपदणय पाठ्यक्रम िो राइए व याि कीदिए।
नोट: ग्रीष्म अवकाश में दिया गया कायय स ुंिर लेख में अपनी उपचारात्मक कायय प स्तिका में कीदिए।
INFORMATION TECHNOLOGY
1. Learn question answer from lesson 1 and 2.
Complete the Matches, fills, true – false and OMR(MCQ) question from chapter 1 and 2.
2. Prepare a presentation on the given topic with the help of Internet.
Roll no 1 to 20
a. Explain about the Various web browsers with their home page picture and advantage.
Roll no 21 to 40.
b. Explain about the Various protocols with their use with diagram.
SOCIAL STUDIES
Prepare a project file with following details:
1. The total length of the project report should not be more than 15 written pages of
foolscap size (A-4 size) sheet.
2. The project report should be handwritten and credit will be awarded to original drawings,
Illustrations and creative use of eco-friendly material.
3. The project report should be presented in a neatly bound simple folder.
4. The project report should be developed and presented in this order
o Cover page: showing project title, student information, school and year.
o List of contents: with page numbers.
o Certificate page:
o Acknowledgements: (acknowledging the institution, offices and libraries visited and
persons who have helped).
a. Chapters: with relevant headings.
b. Summary and conclusions: based on findings.
c. Bibliography: should have the Title, author, publisher and if a website the name of
the website with the specific website link which has been used.
Suggested Projects [Choose any one topic out of A, B or C]
A: DISASTER MANAGEMENT:
1. Generating awareness on Disaster Management.
2. Role of government / non-government functionaries in your locality in Disaster
Management.
3. Identify and design structure safety measures for constructing disaster resistant
buildings. (earthquake, landslide, cyclone and flood resistant)
B: POPULAR STRUGGLES AND MOVEMENTS:
4. Popular movement for democracy in Nepal and struggle for water in Bolivia.
5. Narmada Bachao Andolan
6. Long term movement :Women’s movement or Environment movement
C: MONEY AND CREDIT:
7. Visit any bank and explain various activities undertaken by the banks.
8. Collect information about the micro credit schemes organised by Self Help Groups.
SCIENCE
Revise/learn all the answers from the following chapters for PRE-MID TERM
Chemical Equations and Reactions
Life Process
Acid,Base and Salt
Control and Co-ordination
Electricity
Do the assignments uploaded on school website.
Ch-6 Life Processes
1 Which fluid in the human body wets the internal organs?
2 Where does the blood absorb oxygen in the human body?
3 Name the two parts of the plant through which gaseous waste products are released into the
air.
4 Why do the walls of the trachea not collapse when there is less air in it?
5 Normally a vein opens into a large or into the heart but does not end in capillaries. Which one
or more veins in human is/are exceptions to this rule?
6 Give reason for- the lung alveoli are covered with blood capillaries.
7 Why is blood called liquid connective tissue?
8 Structure of leaf is complementary to its functions. Explain.
9 Bije juice does not contain any digestive enzymes, yet it is essential for digestion, why so?
Explain.
10 How do each of the following factors affect the productivity in the process of
photosynthesis?
1. Temperature. 2. Water. 3. Carbon dioxide.
11 Why is it necessary to separate oxygenated and deoxygenated blood in living organisms?
12 What substance/substances are transported in plants by
(1) Xylem vessels and tracheids?
(2) Sieve tubes (of hloem)?
13 Why is the inner wall of alimentary canal not digested although the digestive enzymes can
digest all the material that make cells?
14 Explain why the rate of photosynthesis in plants is low both at low and high
temperatures?
15 Why is CO2 mostly transported in the dissolved form in our blood than O2?
16 Small intestine in the site for complete digestion of carbohydrates, proteins and fats. Write
down the changes happen to the food in the small intestine before its absorption.
17 Plants absorb water from the soil. How does this water reach the tree tops?
18 Where does aerobic break down of pyruvate take place in a living cell? What are the end
products?
19 Hydrochloric acid creates an acidic medium which facilitate the action of protein digesting
enzyme in the stomach. Name the enzyme and give any three other function served by the
acid.
20 Why is anaerobic respiration produce less energy compared to aerobic respiration?
21 What is root pressure?
22 In which direction does lymph flow?
23 Name the organ system which is responsible for excretion and osmoregulation?
24 What is the composition of lymph?
25 Differentiate between afferent and efferent arterioles?
26 Name the vestigial part human alimentary canal.
27 Name the respiratory pigment of blood in mammals.
28 How does oxygen reach the cells in insects?
29 Respiration is a vital process for all organisms. Explain.
30 What will happen if a diaphragm of a person gets ruptured in an accident?
31 What is the source of oxygen in photosynthesis?
32 How would non-secretion of hydrochloric acid in our stomach affect food digestion?
33 Why does leaf appear green?
34 What is the role of light in photosynthesis?
35 Write about the major glands associated with the alimentary canal of man and mention their
functions.
36 How does the butter in your food get digested and absorbed in the body and explain.
37 Why is the rate of photosynthesis more during a bright sunny day as compared to a cloud day?
38 If all the green plants are removed from the earth life cannot be sustained. Comment.
39 Why is digestion essential for living beings?
40 Draw a diagram to show the internal structure of human heart. Label 6 part in all including at
least three valves
Ch-7 Control and Coordination
1. A particular hormone requires Iodine for its synthesis. Name the endocrine gland which
secretes this hormone and state it’s location in the human body.
2. Write a term for chemical substance which brings about control, coordination in plants?
3. What is the apical dominance?
4. Name the organ associated with the nervous system which is also part of endocrine system
and secretes hormone.
5. Why are hormones called informational molecules?
6. Why do leaves of “touch me not” plant droops when we touch it?
7. Name the structural and functional unit of nervous system.
8. What is the difference between the manner in which movement in the sensitive plant and
movement in our legs takes place?
9. Why do people in the mountainous regions get goitre?
10. What is a synaptic cleft?
11. What are the scientific names for the following receptors in humans? a. Receptors of smell b.
Receptors of taste
12. Which hormone is responsible for the development of moustache and beard in men?
13. How do we detect the smell of an agarbatti?
14. Why do stem and root show unilateral growth towards light and gravity of earth respectively?
15. Which part of the brain controls involuntary actions such as blood pressure, salivation and
vomiting?
16. Justify that the pancreas and gonads perform dual function.
17. Why are some patients of diabetes treated by giving injections of insulin?
18. Pituitary gland is often called as master gland. Why?
19. How can thyroid activity be determined in man?
20. Do the plants have nervous plants like animals? If not, how control and coordination takes
place in plants?
21. Nervous and hormonal systems together perform the function of control and coordination in
human beings. Justify the statement
22. Which hormone is released into blood when its sugar level rises? Name foe organ which
produces the hormone and its effect on blood sugar level. Also name one digestive enzyme
that this organ secretes and the function of this enzyme
23. Describe how auxins are related with foe bending of shoots towards foe source of light.
Define nerve impulse.
24. Which structure in a neuron helps to conduct a nerve impulse: Towards the cell body.
b..Away from foe cell body.
Chemical Reactions and equations
1. Some crystals of copper sulphate were dissolved in water. The colour of the
solution obtained would be
(a) green (b) red (c) blue (d) brown.
2.When dilute HCl is added to Zinc pieces taken in a test tube a. No change takes place
b. the colour of the solution becomes yellow.
c. A pungent smelling gas gets liberated.
d. small bubbles of H2 gas appear on the surface of zinc pieces
3. reacts with ozone and forms As per the balanced
equation, molecules of ozone required for every one molecule of PbS is / are
(a) 4 (b) 3 (c) 2 (d)1
4. Chemically rust is
a. Hydrated ferrous oxide
b. hydrated ferric oxide
c. only ferric oxide
d. none of these
5. Which of the following reactions is not correct
(a) (b)
(c) (d) 6. Identify the type of chemical reaction
(i) (ii)
7. Why does not silver evolve hydrogen on reacting with dil
8. Way do diamond and graphite, the two allotropic forms of carbon evolve different
amounts of heat on combustion?
9. What is the sole of oxidizing agent is a reaction?
10. (a) Define Rusting
(b) Why do you apply paint an iron articles?
11. White the balanced reactions for the following
i. Potassium Bromide (aq) + Barium iodide (aq) Potassium iodide (aq) +
Barium Bromide(aq)
ii. Zinc carbonate (s) Zinc oxide (s) + carbon dioxide (g)
iii. Hydrogen (g) + chlorine (g) Hydrogen chloride
12. The reaction is given by
i. White the ionic equation for the reaction
ii. The ionic equations can be represented by two half equations. Write these equations.
iii. Explain why this is a redox reaction
13. What are neutralization reactions? Why are they named so? Give one example?
14. You are given with
(a) Iron Nails (b) solution (c) (d) Cu powder (e) Ferrous sulphate crystal
(f) Quick lime.
Make five reactions that can take place from these materials.
1 .
ENGLISH
Q1. Do FIVE each in your BBC
(i) Notice (ii) Note-making
(iii) Unseen Passage (iv) Advertisements
Q2.Read the Editorial section of any English newspaper and write your comments on it
Q3. Collect at least 10 articles on current topics, read and write in your BBC
Q4. Read 1-15 chapters of Novel (The Invisible Man) and write the summary and
question & answers.
Q5. Practice in BBC Following Lessons.
(i) My Mother at Sixty –six.
(ii) The Last Lesson
(iii) The Lost Spring
(iv) The Tiger King
MATHS
From NCERT PART-1:
Chapter 1- ex 1.1 (q. no.2,4,5,8,9), ex 1.2(q. n.3,4,5,6,10), ex 1.3(q no. 3 to8) , ex
1.4(q. no 11).
Chapter 2 –learn all the principal value branch and properties of all inverse
trigonometric function, ex 2.1(q1 t0 14), ex 2.2(q 1 to 16), miscellaneous example (9
to 13).
Chapter 3- exercise 3.4 (q.no 15,16,17),miscellaneous exercise (q no 1 to11).
Chapter 4- exercise 4.2(q .no. 10,12,13,14), exercise 4.6(q.no. 13,15,16)
ChapteR12- exercise 12.2(q.no. 2 to 10), miscellaneous exercise (q.no. 3, 5, 6, 10)
Miscellaneous Example (Q.NO. 9, 10, 11)
From NCERT PART-2:
* On Page No. 290-291: revise all the derivatives, integrals formulae and also write the
same in a notebook (20-25 pages)
Remind all the trigonometric functions formulae from XI NCERT
power point presentation GroupWise on either of the topics: vectors, 3d geometry,
continuity & differentiability, inverse trigonometric functions, probability, and relations
& functions
CLASS XII
PHYSICAL EDUCATION
(I) PRACTICAL FILE
(i) ATHLETICS ( TRACK & FIELD ) with diagram
Races = 100,200,400,800 & 1500
Jump = Long jump, High jump, Triple jump (any one)
Throw = Discus throw, Javelin throw, Hammer throw, Shot-put
(ii) Any one game ( Football, Basketball, Volleyball, Hockey, Badminton)
(iii) Yoga Asanas ( any ten)
(iv) AAHPERD Physical Test
ECONOMICS
Students will prepare economics project file on the basis of standing instructions, after
consulting topic with teacher before holidays
Students will collect data on following topics and will prepare presentation (ppt/viva
video/ Photoshop) in a creative manner(roll number wise)
Student can prepare presentation individually or in groups with their respective roll
numbers but not more than 3
*use pictures, videos to make the project interesting and effective
*latest policies of central bank regarding credit creation (rn 1to 5)
*structure of govt budget with latest amendments (rn 6 to 10)
* balance of payment structure of India and how it works(11 to 15)
* gross domestic product of India a comparative study with at least 2 nations(16-20)
*economic development of India (last 3 years)(21-25)
*economic problems of India with specific data (26-33)
* Connect with economy- Student will make column in their copy and will fill
fluctuating rate of gold, silver, dollar, and any 2 foreign currencies/ CRR and SLR of
central bank and GDP growth rate of India since last 3 years.
ACCOUNTANCY
1) PROJECT WORK--Make a comprehensive project based on class XI for class XII
term examination.
2) REVISION WORK ----Revise the following chapters for first unit test
a) Fundamentals of partnership.
b) Valuation of good will and change in profit sharing ratio.
c) Admission of a partner.
d) Retirement/Death of a partner.
3) WRITING WORK----Do minimum 10 practical Questions on each of the above
chapter in the home work note book.
4) SELF DOING WORK-----Complete chapter Dissolution of partnership firms.
5) Bring volume 2 company Account after summer break.
BUSINESS STUDIES
PART-A
(i) Write and learn all CBSE questions from l-1, L-2 and L-11 in H.W note-book. (ii)
Practice HOTS question and case studies.
PART-B:
1. Prepare a practical file on any one topic given below: -
(I) Principles of Management- Henry Fayol’s principles
Or
- F.W.Taylor’s principles
2. Business Management
3. Marketing Management
4. Stock exchange (SEBI)
Note: - Follow guidelines of CBSE available on CBSE Website
HINDI
1. पररयोिना तैयार कीदिए|
2. प्रदतदिन एक अन चे्छि, पत्र, ररपोटय, आलेख में से एक को दलखने का अभ्यास कीदिए|
3. पढाए गए पाठ्यक्रम की प नरावृदत कीदिए|
PHYSICS
Chapter: - electric field and charges
1. Why does the electric field inside a dielectric decreases when it is placed in an
external electric field
2. What is the work done in moving a 2Μc point change from corner A to corner B of a
square ABCD when a 10μC charge exist at the centre of the square ?
3. Show mathematically that the potential at a point on the equatorial line of an electric
dipole is zero?
4. A parallel plate capacitor with air between the plates has a capacitance of 8pF . what
will be the capacitance if the distance between the plates reduced by half and the
space between them is filled with a substance of dielectric constant 6 ?
5. Prove that the energy stored in parallel plate capacitor is given by 1/2CV2.
6. State gauss’s theorem in electrostatics? Using this theorem define an expression for
the field intensity due to an infinite plane sheet of charge density σ C/m2 ?
7 (a) define dielectric constant in terms of the capacitance of a capacitor ? on what factor
does the capacitance of a parallel plate capacitor with dielectric depends ?
(b) Find the ratio of the potential differences that must be applied across the
(i) Parallel
(ii) Series combination of two identical capacitors so that the energy stored in the
two cases becomes the same.
Chapter: - electric potential and capacitance
1. Show does the force between two point charges change if the dielectric constant of
the medium in which they are kept increases.
2. A charged rod P attract rod R whereas P repel another charged rod Q . what type
of the force is developed between Q and R ?
3. A free proton and a free electron are placed in a uniform field. Which of the two
experience greater force and greater acceleration?
4. No two electric lines of force can intersect each other? Why?
5. A particle of mass m and charge q is released from rest in a uniform electric field of
intensity E. calculate the kinetic energy it attains after moving a distance s between
the plates ?
6 Two point charges +q and +9q are separated by a distance of 10a. Find the point on
the line joining the two changes where electric field is zero.
7 Define the term dipole moment P of an electric dipole indicated its direction. Write
its S.I unit. An electric dipole is placed in a uniform electric field E. deduces the
expression for the torque acting on it.
Chapter: - current electricity
1. (a) What is the nature of path of free electrons in a conductor in the (i) presence of
electric field (ii) absence of electric field.
(b) Between two successive collisions each free electron acquires a velocity from 0 to
V. What is the average velocity of a free electron in the presence of an electric field?
Do all electrons have the same average velocity ?
(c) How does this average velocity of free electrons , is the presence of an electric
field vary with temp. ?
2. Plot a graph showing the variation of current density (J) versus the electric field (E)
for two conductors of different materials . what information from this plot regarding the
properties of the conducting material, can be obtained which can be used to select
suitable materials for use in making (i) standard resistance and (ii) connecting wires in
electric circuit?
3. Drive an expression for drift velocity of free electrons. Hence deduce ohm’s law .
4. Define relaxation time of the free electrons drifting in a conductor. How is it related
to the drift velocity of free electrons? Use this relation to deduce the expression for
the electrical resistivity of the material.
5. a uniform wire of resistance 12Ὠ is cut into three pieces in the ratio 1:2:3 and the
three pieces are connected to form a triangle , a cell of emf 8V and internal resistance
1Ὠ is connected across the highest of the three resistors. Calculate current through
each part of the circuit.
1. Solve N.C.E.R.T questions of chapter 1,2,3
2. Prepare an investigatory project on
(a) To study the different brands of cells available in the market using
potentiometer & compare their EMF’s and internal resistances.
(b) To study different types of capacitors and compare ordinary capacitor with
super capacitor
CHEMISTRY
Chapter: - The Solid State
Q.1 What is the number of atoms per unit cell (Z) in a body centered cubic Structure?
Q.2 What is the Formula of a compound in which the element Y forms ccp lattice and
atoms of X occupy 2/ 3rd of octahedral voids?
Q3. What is the formula of a compound in which the element Y ccp lactic and atoms
of X occupy 1/3 rd of tetrahedral voids?
Q.4 Write a Distinguishing feature of metallic solids?
Q.5 What is the number of atoms in a unit cell of a simple cubic crystal?
Q.6 How do metallic and ionic substances differ conducting electricity?
Q.7 Express the relationship between atomic radius (r) and the edge length (a) of the
f cc unit cell?
Q.8 What is the percentage efficiency of packing in case of a simple cubic lattice?
Q.9 The Edge of the face centered cubic unit cell of aluminum is 404 pm. Calculate
the radius of aluminum atom.
Q.10 Calculate the packing efficacy of a metal crystal for a simple cubic lattice.
Q.11 Silver crystallizes in face centered cubic unit cell. Each side of the unit cell has a
length of 409 pm. What is the radius of silver atom?
Q.12 what are F- Centers
Q.13 An alloy of gold and cadmium crystallizes with a cubic structure in which gold
atoms occupy the corners and cadmium atoms fit in to the face centers assign
formula for this alloy?
Q.14 Name an element with which silicon should be doped to give n- type
semiconductor
Q.15 Account for the following
1. Schottky defects lower the density of related solids
(ii) Conductivity of silicon increases on doping it with phosphorus.
Chapter: - SOLUTION
Q.1 What are the isotonic solutions?
Q.2 Define the term osmotic pressure?
Q.3 What is meant by reverse osmosis?
Q.4Define the following terms
(a) Isotonic Solutions
(b) Van’t Hoff Factor
Q.5 Define the term Van’t Hoff Factor
Q.6 what is meant by Colligative Properties?
Q.7 The molecular masses of polymers are determined by osmotic pressure method
and not by measuring other collegiate properties give two reasons.
Q.8 Calculate the amount of KCI which must be added to 1 kg of water so that the
freezing point is depressed by2K
( Kf for water = 1.86 K kg mol-1)
Q.9 15.0 g of unknown molecular material is dissolved in 450 g of water. The resulting
solution freezes at-0.34 O C of water. What is the molar mass of the material?
( Kf for water = 1.86 K kg mol-1)
Q.11 Calculate the amount of sodium chloride which must be added to one kilogram
of water so that the freezing point of water is depressed by 3K. ( Kf for water = 1.86 K
kg mol-1, atomic mass of Na=23, CI=35.5)
Q.12 Calculate the depression in freezing point of water when 20.0 g of
CH3CH2CHCICOOH is added to 500 g of water.
(Given, Ka=1.4X10-3, ( Kf for water = 1.86 K kg mol-1)
Q.13 Define
(i) Mole Fraction
(b) Molality
(C) Raoult’s Law
(ii) Assuming complete dislocation, calculate the expected freezing point of a solution
prepared by dissolving by 6.00 g of Glauber` salt Na2SO4 .10H2O in 0.100 kg mol-1 (Kf
for water = 1.86 K kg mol-1)
Atomic Masses Na= 23,S=32,O=16,H=1
Q.14 State Raoult’s law for a solution containing volatile components Name the
solution which follows Raoult’s law at all concentrations and temperature.
(ii) Calculate the boiling point elevation for solution prepared by adding 10g of CaCl2
to 200 g of water (Kb for water=0.52 K kg mol-1 , molar mass of CaCl2 = 111 g mol-1)
Or
Define the following terms
(a) Azeotrope
(b) Osmotic Pressure
(c) Colligative Properties
Q.15 The Freezing point of a solution containing 0.2 g of acetic acid in 20.0 g of
benzene is lowered by 0.45 o C Calculate
(i) The molar mass of acetic acid from this data
(ii) van’t Hoff Factor
(For Benzene Kf=5.12 K Kg mol-1)
What Conclusion can you draw from the value of van’t Hoff factor obtained?
CHAPTER: ELECTRO CHEMISTRY
Q1 A copper-silver cell is set up the copper ion concentration is 0.10 M. The
concentration of silver ion is not known. The cell potential when measured was 0.422
V. Determine the Concentration of silver ions in the cell.
[Given, E0 Ag+/Ag =+0.80v,
E0 Cu2+/Cu= +0.34V]
Q-2 Express the relation between conductivity and molar conductivity of a solution
held in a cell.
Q.3 Express the relation among conductivity of a solution in the cell, the cell
constant and the resistance of solution in the cell.
Q.4 What is meant by limiting molar conductivity?
Q.5 State kohlrausch’s law of independent migration of ions. Why the conductivity of a
solution does decreases with dilution?
Q.6 The conductivity of 0.001 M acetic acid is 4X10-5 S/cm. Calculate the dissociation
constant of acetic acid, if molar conductivity at infinite dilution for acetic acid is 390 S
cm2/ mol.
Q-7 Calculate the emf for the given cell at 250 C.
Cr I Cr3+ (0.1M) II Fe2+ (0.01M)I Fe
[Given, E0 Cr 3+ /Cr =--0.74V,
E0Fe2+/ Fe =--0.44V,]
Q-8 The resistance of 0.01 M NaCl solution at 250 C. is 200 ohm .The cell constant of
the conductivity cell used is unity. Calculate the molar conductivity of the solution.
Q-9 The conductivity of a 0.20 M solution of KCI at 298 k is 0.0248 S cm – 1 Calculate
its molar conductivity.
Q-10 Define molar conductivity of a substance and describe how for weak and
strong electrolytes, molar conductivity changes with concentration of solute. How is
such change explained?
Q-11State and explain kohlrausch’s law of independent migration of ions. Write an
expression for the molar conductivity of acetic acid at incite dilution according to
kohlrausch’s law.
Q-12 The electrical resistance of a column of 0.05 M Na0 H solution of diameter 1
cm and length 50 cm is 5.55 X103 ohm. calculates its resistivity, conductivity and
molar conductivity.
Q-13 (i) Define the terms conductivity and molar conductivity for the solution of an
electrolyte. Comment on their variation with temperature.
(ii) The measured resistance of a conductance cell was 100 ohm. Calculate
the specific conductance and
Q-14 (i) Define the following terms:
(a) Molar conductivity
(b) Secondary batteries
(c) Fuel cell
(ii) State the following laws:
(a)Faraday’s first law of electrolysis
(b) kohlrausch’ s law of independent migration of ions
Q-15 Calculate the emf of the cell in which the following reaction takes place,
Ni (s)+2Ag+ (0.002 M) Ni2+(0.160 M)+2Ag(s)
[Given that, E0cell=1.05 V]
Q-16 The standard electrode potential for Daniell cell is 1.1 V. Calculate standard
Gibbs energy for the cell reaction.
(F=96,500 C mol-1)
Q-17 What is primary cell? Give one example.
CHAPTER: Chemical Kinetics
Q.1 Define Order of a Reaction
Q.2 Define Rate of a Reaction
Q.3 Why does the rate of a reaction not remain constant throughout the reaction
process?
Q.4 Write units of rate constants for zero order and for the second order reaction. If
the concentration is expressed in Mol-1 and time in seconds.
Q.5 Write two differences between order of reaction and molecularity of reaction.
Q.6 Define
(i) Order of Reaction
(II) Elementary step in a reaction.
Q.7 A reaction is of second order with respect to a reactant. How is its rate affected if
the concentration of the reactants is
(i) Doubled
(ii) Reduced to half?
Q.8 A reaction is of second order with respect to a reactant. How is the rate of
reaction affected, if the concentration of the reactant is reduced to half? What is the
unit of rate constant for such a reaction?
Q.9 Explain the following terms
(i) Rate determining step of reaction
(ii) Molecularity of a reaction
Q.10 Discuss any four factors which affect the rate of a chemical reaction?
Q.11 Define the following
(i) Elementary step in a reaction
(ii) Rate of a Reaction
Q.12 A first order reaction is found to have a rate constant, k=5.5X10-14 s-1 finds the
half of the reaction
Q.13 If half-life period of a first order same reaction is x and 3/4t
Q.14 Define the Following Terms
(i) Half- life of reaction (t ½ )
(ii) Rate Constant (k)
Q.15 Define half-life of reaction Write the expression on half-life for
(i) zero order reaction
(ii) First Order reaction
BIOLOGY
Learn and write 2 & 3 marks questions of Unit 1 & 2 from exam
idea.
Practice all the diagrams of unit 1 & 2.
PSYCHOLOGY
1. Identify the problems of adjustments of adolescents.
2. Spend a day with an aged person and observe the needs and problems. Write a
report.
3. List and discuss 4 or 5 areas of agreement and disagreement of self with mother,
father, siblings, friends and teachers.
4. To make samples of hemming, backstitch and interlocking.
5. To make button hole and to sew a hook, eye and button.
6. Collect labels of ISI, Agmark and FPO standard marks.
7. Write and learn the extra questions given (chapter wise).
8. Revise the syllabus completed so far.
9. PSYCHOLOGY
10. Practical file work : Complete writing the following in the practical file. Use the
class xi text book for information on the first practical.
11. Guideline for introduction to psychological testing.
12. Introduction: definition of psychology
13. Goals of psychological inquiry.
14. Definition of psychological test.
15. Characteristics of psychological test.
16. Explain standardization (reliability, validity and norms in details).
17. Types of psychological tests.
18. Uses of psychological test.
19. Conclusion-summarizing.
20. Watch any film or read a book depicting a psychological disorder/learning
disability.
21. Recommended movies:
22. Kartik calling kartik
23. My name is khan
24. Taree zameen par
25. Rain man
26. A beautiful mind
27. As good as its gets
28. Fracture
29. Three faces of Eve
30. K-Pax
31. Vertigo
32. RECOMMENDED BOOKS:
33. The invisible plague
34. The rise and fall of mental illness from 1750 to the present- by Torrey E.F. and
Miller
35. The curious incident of the dog in the night time-By Mark Haddon.
36. A child called “IT”_ by dave Pelzer
HOME SCIENCE
1. Identify the problems of adjustments of adolescents.
2. Spend a day with an aged person and observe the needs and problems. Write a
report.
3. List and discuss 4 or 5 areas of agreement and disagreement of self with mother,
father, siblings, friends and teachers.
4. To make samples of hemming, backstitch and interlocking.
5. To make button hole and to sew a hook, eye and button.
6. Collect labels of ISI, Agmark and FPO standard marks.
7. Write and learn the extra questions given (chapter wise).
8. Revise the syllabus completed so far.
POLITICAL SCIENCE
Q1 Practice write the answers from Assignment of Cartoons and images discussed in
class.
Q2 learn sample paper 1 to 10 (Questions from those chapter done in a class )
Q3 Practice Map work from book done in a class.
Q 4 Prepared the following topics from google (internet) and note down in your
homework note book.
a) Doklam issue
b) Brexit
c) Non Align Movement current information
d) Tibet problem
e) Regional Aspiration in India
f) Emergency in India ( causes and consequences )
g) Relationship between India and Pakistan .
h) Global Warming causes and consequences.
i) Globalisation ( advantages and disadvantages )
j) Consequences of partition of India
COMPUTER SCIENCE
Unit 1:
(i)Write and learn all CBSE questions from unit 1
(ii)Practice questions of finding the output, Errors Handling and named the header
file of library function. solved question (10 set) like given question below
Q1. What is the difference between call by reference & call by value method in a
user defined function in C++? Explain it with suitable example. For –
Q.2.Write the names of the header files, which is/are essentially required to execute
the following functions i) isdigit( ) ii) sin( )
Q .3 Rewrite the following program after removing all the syntactical errors (if any),
underlining each correction. include<iostream.h>
typedefchar[40]string;
voidmain()
{stringS=”Australia”;
L=strlen(S);
cout<<”String “<<S<<’ has ’<<L<<”Characters”<<endl; }
Q . 4. Give the output of the following program ( Assuming that all required header
files are included in the program) :
#include<iostream.h>
#include<stdio.h>
#include<conio.h>
voidTRANSFER(char*s1,char*s2)
{intn,j=0;
for(inti=0;*(s1+i)!='\0';i++)
{
n=*(s1+i);
if(n%2==0)
*(s2+j++)=*(s1+i);
}}
voidmain()
{char*p="ChaRlesBabBaGe",q[80];
TRANSFER(p,q);
cout<<q<<endl;}
Explain These Questions.
Q1. What are the features of OOP?
Q2. What are the different data types in C++?
Q3. Explain any two user defined data types.
Q4. Differentiate between a run-time error and syntax error. Give one example of
each.
Q5. What is the difference between an object and a class?
Q6. Write 4 advantages of Object oriented programming.
Q7. What is class? What is its need?
Q8. Differentiate between local and global class with help of example.
Q.9 What is the significance of access specifies in a class?
Q1.0 What is Constructor?
Q11. What is destructor? What is its need?
Q12.What is the characteristics of Constructors?
INFORMATION PRACTICE
1. Write the output of following expression:
i) If age=45 and age =65 Age >65 ?350 : 100;
ii) What will be the value of a and b after execution of following code : int a = 5 , b = 10 ; if ( ++b < 5 ) a * = b ;
2. Rewrite the following fragment using switch :
if ( ch = = ‘A’ ) eastern + + ;
if ( ch = = ‘E’ ) western + + ; if ( ch = = ‘I’ ) northern + + ; if ( ch = = ‘O’ ) southern + + ; else unknown + + ;
i) if ( code = = 1 ) 3 day = "Monday" ; else if ( code = = 4 ) day = "Thursday" ; else if ( code = = 7 ) day = "sunday" ; else day = "No Match" ;
3. Using the following GUI, Write the code for the Button check wither the given number
is “Even” or “Odd” and display the same in the Label provided. Using if-else.
4. Create a GUI application that takes the value of a and b and calculates sum.
5. Write a java program that takes length and breadth, and calculates area of rectangle
6. For the following GUI application. The percentage marks are to be entered in the
TextField and upon clicking the Button, corresponding grade ( as per following rules )
should be displayed in the Label.
MarksPercentage Grade
> = 90 A +
80 – 90 A
75 – 80 B+
60 – 75 B
50 – 60 C
40 – 50 D
< 40 Fail
7. Create java application that takes three numbers and calculates area of triangle.
s=(a+b+c)/2
area=
8. What is a Frame? Write a sample code to create Frame with one text field.
9. What is a difference between Text Field and Text Area?
10. Differentiate between Formal and Actual Parameters?
11. Write a program to check whether a give year is leap year or not
12. Write the program to create a simple calculator with +,-,* operations.
13. Consider the following while-loop and tell how many times the loop will execute?
int a=40,result=0;
for (inti=1;i<5;++i)
result=(a+i);
if (i==5){
a=45;}
14. Find output of the following :-
(i) If a,b,c are integers and d is a floating literal
d=(++b/c)/(++a/3); (a=2, b=5 and c=5)
(ii) for(inti=0;x<=10; x+=2)
{
System.out.println(x); }
PAINTING
Preparation of paintings required for portfolio for cbse final practicals
MATERIAL REQUIRED:
1. Half imperial size cartage sheet.
2. Oil Pastel colors and Water colors.
TOPICS :
1. STILL LIFE (Pots with fruits)………………….. 2 Paintings
One in pencil
One in color (Water or Oil pastel color)
2. LANDSCAPES…………………………………………..2 Paintings.
One in color
One in black and white ( with black gel pen)
3. STUDY OF FLOWERS…………………………………2 Paintings in color.
4. STUDY OF FRUITS & VEGETABLES……………..2 Paintings ( one each in color)
5. GEOMETRICAL DESIGNS COMPOSITION……2 Paintings.
One in color
One in black & white.
TOTAL NO. OF PAINTINGS…………10.
