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SCIENCE

Class 12th Session (2017-18)

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ENGLISH

1. Make a chart of figure of speeches ( 10 at least)2. Cut advertisement from newspaper and paste them in a scrap book.3. Make a poster on Nation needs literacy on A3 size sheet.4. Learn all the lessons and poem of the book Flamingo.

MATHS

1. Revision of Chapter2. Assignment 1 :- Tangent and normal (previous year question)3. Assignment 2 :- Maxima and Minima (previous year question)4. Make formulae dictionary.

PHYSICS

1. Revise unit 1 (Electrostatics)Chapters-a) Electric charge.b) Electric field.c) Electric potential.d) Capacitors.2. Revise unit 2 (Current electricity)Chapters-a) Electric current.b) Kirchhoffs law.c) Heating effect of current.3. Revise unit 3 (Magnetic effect of current and magnetism)Chapters-a) Magnetic effect of current.b) Motion of charge particle pn uniform electric and magnetic field.c) Magnet and earth magnetism.d) Classification of magnetic materials.4. Completed assignments [ Assignment 1 and 2]5. Solved examples and exercises questions of first three units from N.C.E.R.T. in separate notebook.

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HINDI

1. :-

1. ?2. ?3. ?4. ?5. ?6. ?7. ?8. ?9. ?10. ?11. ?12. ?13. ?14. ?15. ?16. ?17. ?18. ? I19. I20. I21. ?22. I23. ?24. ?25. ? ?

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26. - ? ?27. ?28. I29. ? I30. ? ?

31. I32. I33. I34. I

Computer Science

1. Do the following programs on A-4 size sheets and bring them in a folder:a. Define any 5 classes from the assignment with main function.b. Write a program using function Swap2Best(int arr[], int size) in C++ to modify the content of the

array in such a way that the elements, which are multiples of 10 swap with the value present in thevery next position in the array.

For example:If the content of array arr is 90, 56, 45, 20, 34, 54

The content of array arr should become 56, 90, 45, 34, 20, 54

c . Write a program using function change() in C++, which accepts an array of integer and itssize as parameters and divide all those array elements by 7 which are divisible by 7 and multiplyother elements by 3.

if array contains 2,14,31, 49, 15

Then after changes it should contain 6, 2, 63, 7, 45

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d. Write a program using function in C++ which accepts an integer array and its size as arguments andreplaces elements having odd values with thrice its value and elements having even values withtwice its value.

e.g. if array contains 2, 4, 5, 8, 9, 11, 12Then it should contain 4, 8, 15, 16, 27, 33, 24

e. Write a program using function in C++, which accepts an integer array and its size as argumentsand swap the elements of every even location with its following odd location.

e.g. if array contains 1, 2, 3, 4, 5, 6, 7, 8, 9, 10then after changes it should contain 2, 1, 4, 3, 6, 5, 8, 7, 10, 9

f. Write a program using function in C++ which accepts an integer array and its size as arguments/parameters and exchanges the value of first half side elements with the second half side elementsof the array.

e.g. if an array of 8 elements have initial contents as2, 5, 6, 7, 9, 12, 34, 56

The function should rearrange the array as9, 12, 34, 56, 2, 5, 6, 7

g. Write a program using function in C++ to print the product of each row of a row of a twodimensional integer array passed as the argument of the function.

e.g. if the two dimensional array contains2 4 54 3 26 7 4

Then the output should appear as:Product of row 1 = 40Product of row 2 = 24Product of row 3 = 128

h. Write a program using function in C++ which accepts a 2D array of integers and its size asarguments and displays the elements of middle row and the elements of middle column.

e.g. if the array contains 3 5 42 6 71 4 5

The output should be Middle Row : 2 6 7Middle Column: 5 6 4

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i. Write a program using function in C++ which accepts a 2D array of integers and its size asarguments and displays the alternate values.

e.g. if the array contains 3 5 42 6 71 4 5

Then the function should display 3 4 6 1 5

j. Write a program to sort the elements of an integer array using:i. Selection Sorting ii. Bubble sorting

k. Write a program to search an element using:i. Linear searching ii. Binary searching

Chemistry

Name of chapters and topics to be covered:

1. Solid state : Revise the unit. Solve the NCERT questions both in text and end exercise. Solve the last 10 years question of CBSE board of this unit.

2. Solution : Revise the unit Solve the NCERT problems Solve last 10 year questions of CBSE board.

3. Electrochemistry : Revise and learn the unit. Solve NCERT problems. Solve last 10 year questions of CBSE board.

4. Chemical kinetics : Revise the unit. Solve the NCERT . problems Solve last 10 year questions of CBSE board

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5. Surface chemistry : Revise the unit. Solve NCERT problems. Solve last 10 year questions of CBSE board.

6. Solve the miscellaneous numerical on Colligative properties & abnormal molecular mass& vent Hoff factor.

7. Solve the miscellaneous numerical on Nernst & EMF of cell.8. Solve the miscellaneous numerical on zero order & first order of reaction.

PHYSICAL EDUCATION

1. What do you mean by planning in sports? Explain its objectives.

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2. What do you mean by tournament? Explain the importance of tournaments.

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3. Explain the advantages and disadvantages of knock out tournaments?

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4. Explain the advantages and disadvantages of league tournaments?

I5. Draw a knockout fixture for 19 teams.

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6. Draw a league fixture for 11 teams.

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7. What do you mean by intramural and extramural programs & explain its objectives?

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8. What do you mean by leadership and explain the qualities of leadership in physical education.

I9. What do you mean by balanced diet? Explain the factors which affect the balanced diet.

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? ?10. Explain macro and micro nutrients.

I11. Explain the nutritive and non-nutrients components of diet.

I12. What do you mean by Yoga? Explain the importance of Yoga.

? ?13. What is Hypertension? What are its types and risk factors?

? ?14. Explain the procedure , benefits and precaution of :-

, , :-1. Hostottanasana 2. Trikonassna 3. Ardhamatsyendrasana 4. Paschimottasana 5. Chakrasana 6. Gomukhasana 7. Parvatasana 8. Matsyasana 9. Vokrasana 10. Shalabhasana

BIOLOGYNAME : ____________________ R.No. : ___ Class : XII___SUBJECT - BIOLOGYQ1.ANSWER THE FOLLOWING QUESTIONS .(ON A4 SHEET WITH FOLDER)PART I1. What is lactational amenorrhoea?[1]2. Write the scientific name of causative agents of :--i) Syphillis ii) Gonorrhoea.[1]3. Name the technique by which one can disorder any possible chromosomal or metabolicdisorders in foetus.[1]4. Expand the following :-- i) GIFT ii) ICSI iii) IUCD[1]5. Removal of Gonads cannot be a contraceptive option. Why?[2]

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PART II1. List the factors on which pioneer species depend during secondarysuccession?[2]2. The productivity of ecosystem increases from polar regions towardstropics. Why?[2]3. Mention some of the ecological services provided by forests? [2]4. Differentiate between food chain & food web? [2]5. What is pyramid of biomass? Represent the pyramid of biomass ini) grassland ecosystemii) aquatic ecosystem.[3]6. Represent schematically & describe carbon cycle in ecosystem? [5]7. What is photochemical smog composed of? How does this affect theplants?[2]8. What can be the effect of discharging hot water into water body on theorganism in it?[2]9. How defunct ships do contributes to solid wastes? [2]10. What is Eutrophication? Explain its consequences on the life of plants &animals living in such water?PART III1. Which are the nuclei that fuse to form endosperm? [1]2. Give an example of Bat Pollinated flower. [1]3. Why are pollen grains produced in enormous quantity in maize? [1]4. What are cleistogamous flowers? Can cross pollination occurs incleistogamous flowers. Give reason?[2]5. Draw a labeled diagram of mature embryo sac & label the followingi) Egg cell ii) Antipodal cells iii) Synergids iv) Polar nuclei[2]6. Mention two strategies evolved lay flowers to prevent self-pollination [2]7. i) Explain the structure of a maize grain with the help of a diagramii) Why cannot we use the term maize seeds for maize grains?PART IV1. How do kangaroo rats live in the absence of water in North Americandeserts?[3]2 How is diapause different from Hibernation? [3]3. Give an example to show that completely unrelated species can alsocompete for same resources?[5]

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4. What is Age pyramid? What are the different types of age pyramid? [5]5. Differentiate between regulators & conformers? Why do small animalsdo not show regulations?Q2.PREPARE INVESTIGATORY PROJECT ON ANY BIOLOGY TOPIC OF YOUR CHOICE.Q3 COMPLETE THE GIVEN EXPERIMENTS IN YOUR PRACTICAL FILE

List of Experiments1. Disect the given flower and display different whorls. Disect anther and ovary to shownumber of chambers.2. Study pollen germination on a slide.3. Collect and study soil from at least two different sites and study them for texture,moisture content, pH and water holding capacity of soil. Correlate with the kinds of plantsfound in them.4. Collect water from two different water bodies around you and study them for pH,clarity and presence of any living organisms.5. Study the presence of suspended particulate matter in air at the two widely differentsites.6. Study of plant population density by quadrat method.7. Study of plant population frequency by quadrat method.8. Prepare a temporary mount of onion root tip to study mitosis9. To study the effect of the different temperatures and three different pH on theactivity of salivary amylase on starch.Study/observation of the following (Spotting)1. Study of flowers adapted to pollination by different agencies (wind, insect)2. Study of pollen germination on stigma through a permanent slide.3. Study and identify stages of gamete development i.e. T.S. testis and T.S. ovary throughpermanent slides. (from any mammal)4. Study meiosis in onion bud cell or grass hopper testis through permanent slide.5. Study of T.S. of blastula through permanent slide.6. Study Mendelian inheritance using seeds of different colour/size of any plant.7. Study prepared pedigree charts of genetic traits such as rolling of tongue, bloodgroups, widows peak, colour blindness.8. Exercise on controlled pollination-Emasculation, tagging and bagging.9. To identify common disease causing organisms like Ascaris, Entamoeba, Plasmodium,

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Ringworm through permanent slide or specimen. Comment on symptoms of diseases thatthey cause.10. Study two plants and two animals found in xerophytic condition. Comment upontheir adaptations/morphological.11. Study plants and animals found in aquatic conditions. Comment upon theiradaptations/ morphological.Q4 REVISE THE CHAPTERS 1,2,3,4,13,14,15,16.