PHYSICAL EDUCATION (THEORy)
Time :- 3 hours Class – XII M.M. 70
General Instructions :
a) all questions are compulsory.
b) Question paper carries three parts namely A,B, and C.
c) Answer to any question carrying 2 marks should be in approximately 30 words.
d) Answer to any question carrying 3-4 marks should be in approximately 50-60 words.
e) Answer to any question carrying 6 marks should be in approximately 100 words.
PART A
1- What are the principles of physical fitness development ? 2
2- What is weight training ? What points should be remembered while doing weight
training ? 2
3- What are the component of physical fitness ? 2
4- What is the importance of training in games and sports ? 2
5- What are the advantages of speed development ? 2
6- What are the various methods of warming – up ? 4
7- Games and sports are men’s cultural heritage. Discuss. 4
8- What type of social qualities can be developed by participating in physical
education programmes ? Explain . 6
9- what is physiological fitness ? Give a brief introduction of components of
physiological fitness ? 6
PART B
10- Give description of Rajiv Gandhi khel Ratna award ? 2
11- Answer the following questions on the basis of any one game / sports of
your choice.-
Explain any four terminologies of the game/sports. 2
Four important tournaments of the games/sports 2
Write the name of nay four famous player of games/sports. 2
Describe the history of the games/sports. 3
Discuss the general rules of the games/sports. 3
Explain in detail any six fundamental skills of the games/sports. 6
PART C
12- What are the desirable requirements of living environment. 2
13- What are the causes of Accidents in Home? 2
14- What are the requirements of successful marries life? 2
15- What are the resons for the occurrence of injuries in sports/ 2
16- what is strain ? What are the signs and symptoms of a strain? How should a
strain betreated? 3
17- What is Diaster? What factor cause disasters? 3
18- What should be the role of parents in healthy growth and development of child?
>>>>>>>>>>>>>>>>>>>>>>>>>>>>
MODEL QUESTION PAPER -2
PHYSICAL EDUCATION (THEORY)
Time :- 3 hours Class – XII M.M. 70
II- Paper
General Instructions :
all questions are compulsory.
Question paper carries three parts namely A,B, and C.
Answer to any question carrying 2 marks should be in approximately 30 words.
Answer to any question carrying 3-4 marks should be in approximately 50-60 words.
Answer to any question carrying 6 marks should be in approximately 100 words.
PART A
1) What is the importance of physical fitness?
2) What are the advantages of doing circuit training method? 2
3) What is the aerobic activities? What are the beneficial effects of cycling? 2
4) What is the importance of limbering down in games and sports? 2
5) What is the meaning and importance of sociology in physical education? 2
6) How can the quality of sport man ship be developed through games and sports? 4
7) What is role of pace running for developing speed and endurance? 4
8) Name the factors affecting Physical fitness and wellness. What is their contribution in physical fitness and wellness? 6
9) What is the importance of burning up in games and sports and write the method of burning up. 6
PART B
10) Arjuna Award in sports? What is given in these awards to the sportsman? 2
11) Answer the following questions on the basis of any games/sports of your choice.
1. Name any fore importanent tournament of the games/sports. 2
2. Write note on any two national award winning players of the game and sporsts.2
3. Explain any four terminologies of the games and sports. 2
4. Write the history of the game and sports. 3
5. Write the general rules of the game and sports. 3
6. Explain any six fundamental skills of the game and sport. 6
PART C
12) What are the essential elements of healthful environment? 2
13) Our drinki9ng water has become a Killer Drink discuss. 2
14) What measures can help in reducing the problems of Floods? 2
15) Give an introduction of the characteristics of Adolescents. 2
16) What precautionary measures can be taken to prevent sports injuries in general? 3
17) Define family and threw light on its functions in society. 3
18) What type of Cure in needed during pregnancy and what type of problems can pre-marital sex create? 6
>...>......................................................................
S. K. MAURYA P E T
K V HAZRATPUR
Showing posts with label SAMPLE QUESTION PAPER. Show all posts
Showing posts with label SAMPLE QUESTION PAPER. Show all posts
Friday, January 11, 2008
Thursday, December 27, 2007
CHEMISTRY SAMPLE PAPER – I
CLASS – XII
Time: Three Hours Max. Marks: 70
General Instructions:
All questions are compulsory.
Q. Nos. 1 to 8 are very short answer questions and carry 1 mark each.
Q. Nos. 9 to 18 are short answer questions and carry 2 marks each.
Q. Nos. 19 to 27 are also short answer questions and carry 3 marks each.
Q. Nos. 28 to 30 are long answer questions and carry 5 marks each.
Use log tables if necessary, use of calculators not allowed.
1. A reaction is 2A + B 2D and rate law is found to be Rate = k [A]3/2 What is order and molecularity of reaction? (1)
2. H3PO3 is diprotic. Why? (1)
3. How many moles of vacant cationic sites will be there if NaCl crystal is doped with 2x10-10 mole Indium Chloride? (1)
4. For the following reaction, 4NH3 (g) + 5O2 (g) 4NO (g) + 6H2O (g) . write the rate of formation of ‘NO’ in terms of concentration of ammonia. (1)
5. Write IUPAC name of compound CH3 NH CH3
(1)
CLASS – XII
Time: Three Hours Max. Marks: 70
General Instructions:
All questions are compulsory.
Q. Nos. 1 to 8 are very short answer questions and carry 1 mark each.
Q. Nos. 9 to 18 are short answer questions and carry 2 marks each.
Q. Nos. 19 to 27 are also short answer questions and carry 3 marks each.
Q. Nos. 28 to 30 are long answer questions and carry 5 marks each.
Use log tables if necessary, use of calculators not allowed.
1. A reaction is 2A + B 2D and rate law is found to be Rate = k [A]3/2 What is order and molecularity of reaction? (1)
2. H3PO3 is diprotic. Why? (1)
3. How many moles of vacant cationic sites will be there if NaCl crystal is doped with 2x10-10 mole Indium Chloride? (1)
4. For the following reaction, 4NH3 (g) + 5O2 (g) 4NO (g) + 6H2O (g) . write the rate of formation of ‘NO’ in terms of concentration of ammonia. (1)
5. Write IUPAC name of compound CH3 NH CH3
(1)6. Write the co-ordination number of Ca 2+ and F – ions in ionic solid CaF2.
(1)
7. Arrange the following halides in order of increasing reactivity through SN2 mechanism. (1)
CH3CH2Br, CH3Br, (CH3)3CBr, (CH3)2CHBr.
8. Write the change that occurs in the structure of protein when raw egg is boiled. (1)
9. What will be the effect of temperature on the adsorption of a gas on solid in case of physisorption and chemisorption? (2)
10. What happens when (2)
I. Electric current is passed through ferric hydroxide sol.
II. Freshly prepared precipitate of AgCl is agitated with aqueous solution of silver nitrate.
11. An element (density 6.8 g cm-3) occurs in BCC structure with cell edge of 280 pm. Calculate the number of atoms presents in 250 gm of element. (2)
12. The graphical representation of the variation of m vs. for two electrolytes AB and PQ was found as below (2)
PQ
AB
0
I. Write the nature of electrolytes AB and PQ.
II. Write the effect of dilution on the dissociation of AB.
13. Write the chemical reactions in which sulphuric acid acts as (2)
I. Dehydrating agent
II. Oxidizing agent
14. Why is o-nitro phenol more acidic than phenol but less acidic than p-nitro phenol? Explain. (2)
15. Write the mechanism of formation of diethyl ether from ethanol.
(2)
OR
Write Williamson’s synthesis process for preparation of methoxy ethane? Write one important advantage of this method.
16. How will you distinguish between (2)
I. Benzyl amine and aniline.
II. Secondary amine and tertiary amine.
17. A colourless crystalline solid C7H6O2 on heating with PCl5 gives a compound ‘A’ which on Rosenmund reduction gives a compound ‘B’. Further oxidation of ‘B’ gives out original crystalline solid. (2)
a) Identify A and B.
b) Write the chemical reactions involved in the formation of A and B.
18. Arrange the following compounds in the increasing order of property indicated. (2)
a) HBr, HF, HCl, HI (acidic strength).
b) HClO3, HClO, HClO4, HClO2 (stability).
19. Write the chemical reaction that occurs during (3)
I. Preparation of Al by electrolytic reduction of Alumina.
II. Refining of Nickel by Mond’s process.
III. Extraction of Ag by leaching with NaCN.
20. How is Xenon hexafluoride prepared? Draw its structure and write the type of hybridization. (3)
21. Explain the following citing one example (3) . I. 1. Analgesics
I. 2.Broad spectrum antibiotics
II. 3. Anti histamines
OR
What are antimicrobials? Give one example. Write the three ways of controlling a microbial disease.
22. (a) What is Lanthanide contraction? Write its two consequences. (2)
(b) Transition metals form coloured compounds. Why? (1)
23. What are fuel cells? Write the reaction taking place at anode and cathode in Hydrogen-oxygen fuel cell with brief explanation. (3)
24. The following experimental data was collected for the reaction at 298K . (3)
Cl2 (g) +2NO (g) 2NOCl (g)
21.6 x 10-4
a) Write the rate law for above reaction.
b) Determine the rate constant.
c) Calculate the rate of reaction when concentration of Cl2 (g) and NO (g) are 0.015 and 0.025 mol l-1 respectively.
25. (a) Write the names of two components of starch. How do they differ in (3)
I. Structural unit.
II. Solubility in water
OR
Explain the following in case of DNA
I. Mutation
II. Replication (iii) Transcription
26. (a) What are co-polymers? Give one example. (1)
(b) How is PVC manufactured? What is the role of benzoyl peroxide in polymerization of vinyl chloride? (2)
27. How will you convert (3)
I. Isopropyl chloride into propene
II. Phenol into o-bromophenol
III. Aniline into benzoic acid.
28. (a) What is Henry’s Law? Write its two limitations. (2)
(b) What is osmosis? Average osmotic pressure of human blood is 7.4 atm at 270C. Calculate total concentration of various solutes present in the blood. Assuming this concentration in molality, calculate the freezing point of blood.
(Kf =1.86 Kg molal-1, R =0.0821 l atm K-1 mol-1) (3)
OR
a) What is abnormal molecular mass? Write the value of Vant Hoff factor for benzoic acid dissolved in benzene. (2)
b) Two liquids X and Y on mixing form ideal solution. The vapour pressure of solution containing 3 mol of X and 1 mol of Y is 550 mm of Hg. But when 4 mol of X and 1 mol of Y are mixed the vapour pressure is 560 mm of Hg. Calculate the vapour pressure of pure X and Y. (3)
29. (a) Account for the following (2)
I. Chloro acetic acid is stronger than acetic acid.
II. Ethanamide has higher boiling point than ethanoic acid.
III. Aniline does not undergo Friedal and Craft reaction.
(b) Write IUPAC name of following (3)
I. (CH3)3 C-CHCl-CH3
II. CH3-CH-CH2Br
Cl
30. (a) What are geometrical isomers? Represent the geometrical isomer of
Co (en)2Cl2 + ion. (2)
(b) Out of two complexes Fe (CN)6 3-and Fe(CN)6 4- which one is more stable and why ? (1)
(c) Give reasons (1+1)
I. Ce4+ ion is more stable than Ce2+.
II. KMnO4 solution is decolourised by acidified solution of oxalic acid.
OR
A series of organic reaction is represented as below. (2+2+1)
OH
A Conc HNO3 +H2SO4 B Sn/HCl C NaNO2 + HCl D HOH
278 K Boil
a) Identify A, B, C and D.
b) Write the complete chemical reaction for each step.
c) Write the type of reaction changing C into D.
Prepared and presented by:-
C.D. Ram, Vice Principal
K.V. OEF Hazratpur
(1)
7. Arrange the following halides in order of increasing reactivity through SN2 mechanism. (1)
CH3CH2Br, CH3Br, (CH3)3CBr, (CH3)2CHBr.
8. Write the change that occurs in the structure of protein when raw egg is boiled. (1)
9. What will be the effect of temperature on the adsorption of a gas on solid in case of physisorption and chemisorption? (2)
10. What happens when (2)
I. Electric current is passed through ferric hydroxide sol.
II. Freshly prepared precipitate of AgCl is agitated with aqueous solution of silver nitrate.
11. An element (density 6.8 g cm-3) occurs in BCC structure with cell edge of 280 pm. Calculate the number of atoms presents in 250 gm of element. (2)
12. The graphical representation of the variation of m vs. for two electrolytes AB and PQ was found as below (2)
PQ
AB
0
I. Write the nature of electrolytes AB and PQ.
II. Write the effect of dilution on the dissociation of AB.
13. Write the chemical reactions in which sulphuric acid acts as (2)
I. Dehydrating agent
II. Oxidizing agent
14. Why is o-nitro phenol more acidic than phenol but less acidic than p-nitro phenol? Explain. (2)
15. Write the mechanism of formation of diethyl ether from ethanol.
(2)
OR
Write Williamson’s synthesis process for preparation of methoxy ethane? Write one important advantage of this method.
16. How will you distinguish between (2)
I. Benzyl amine and aniline.
II. Secondary amine and tertiary amine.
17. A colourless crystalline solid C7H6O2 on heating with PCl5 gives a compound ‘A’ which on Rosenmund reduction gives a compound ‘B’. Further oxidation of ‘B’ gives out original crystalline solid. (2)
a) Identify A and B.
b) Write the chemical reactions involved in the formation of A and B.
18. Arrange the following compounds in the increasing order of property indicated. (2)
a) HBr, HF, HCl, HI (acidic strength).
b) HClO3, HClO, HClO4, HClO2 (stability).
19. Write the chemical reaction that occurs during (3)
I. Preparation of Al by electrolytic reduction of Alumina.
II. Refining of Nickel by Mond’s process.
III. Extraction of Ag by leaching with NaCN.
20. How is Xenon hexafluoride prepared? Draw its structure and write the type of hybridization. (3)
21. Explain the following citing one example (3) . I. 1. Analgesics
I. 2.Broad spectrum antibiotics
II. 3. Anti histamines
OR
What are antimicrobials? Give one example. Write the three ways of controlling a microbial disease.
22. (a) What is Lanthanide contraction? Write its two consequences. (2)
(b) Transition metals form coloured compounds. Why? (1)
23. What are fuel cells? Write the reaction taking place at anode and cathode in Hydrogen-oxygen fuel cell with brief explanation. (3)
24. The following experimental data was collected for the reaction at 298K . (3)
Cl2 (g) +2NO (g) 2NOCl (g)
21.6 x 10-4
a) Write the rate law for above reaction.
b) Determine the rate constant.
c) Calculate the rate of reaction when concentration of Cl2 (g) and NO (g) are 0.015 and 0.025 mol l-1 respectively.
25. (a) Write the names of two components of starch. How do they differ in (3)
I. Structural unit.
II. Solubility in water
OR
Explain the following in case of DNA
I. Mutation
II. Replication (iii) Transcription
26. (a) What are co-polymers? Give one example. (1)
(b) How is PVC manufactured? What is the role of benzoyl peroxide in polymerization of vinyl chloride? (2)
27. How will you convert (3)
I. Isopropyl chloride into propene
II. Phenol into o-bromophenol
III. Aniline into benzoic acid.
28. (a) What is Henry’s Law? Write its two limitations. (2)
(b) What is osmosis? Average osmotic pressure of human blood is 7.4 atm at 270C. Calculate total concentration of various solutes present in the blood. Assuming this concentration in molality, calculate the freezing point of blood.
(Kf =1.86 Kg molal-1, R =0.0821 l atm K-1 mol-1) (3)
OR
a) What is abnormal molecular mass? Write the value of Vant Hoff factor for benzoic acid dissolved in benzene. (2)
b) Two liquids X and Y on mixing form ideal solution. The vapour pressure of solution containing 3 mol of X and 1 mol of Y is 550 mm of Hg. But when 4 mol of X and 1 mol of Y are mixed the vapour pressure is 560 mm of Hg. Calculate the vapour pressure of pure X and Y. (3)
29. (a) Account for the following (2)
I. Chloro acetic acid is stronger than acetic acid.
II. Ethanamide has higher boiling point than ethanoic acid.
III. Aniline does not undergo Friedal and Craft reaction.
(b) Write IUPAC name of following (3)
I. (CH3)3 C-CHCl-CH3
II. CH3-CH-CH2Br
Cl
30. (a) What are geometrical isomers? Represent the geometrical isomer of
Co (en)2Cl2 + ion. (2)
(b) Out of two complexes Fe (CN)6 3-and Fe(CN)6 4- which one is more stable and why ? (1)
(c) Give reasons (1+1)
I. Ce4+ ion is more stable than Ce2+.
II. KMnO4 solution is decolourised by acidified solution of oxalic acid.
OR
A series of organic reaction is represented as below. (2+2+1)
OH
A Conc HNO3 +H2SO4 B Sn/HCl C NaNO2 + HCl D HOH
278 K Boil
a) Identify A, B, C and D.
b) Write the complete chemical reaction for each step.
c) Write the type of reaction changing C into D.
Prepared and presented by:-
C.D. Ram, Vice Principal
K.V. OEF Hazratpur
Sample Questions for Low Achievers(BIO)
Class: XII
Sub: Biology
Sample Questions for Low Achievers
Dr Neeta Singh PGT BIO
UNIT-IV 2Marks Questions
1. Explain any two methods of vectorless gene transfer.
2. What is a palindromic sequence on DNA? Why is it useful in recombinant DNA technology?
3. What are restriction enzymes? Name and describe their two major kinds.
4. Name the technique used for separation of DNA fragments. What is its principle?
5. How is Agrobacterium tumefaciens used as a vector for transformation of plant cells?
6. Mention the key tools necessary for rDNA technology.
7. What is genetic engineering? List the steps involved in rDNA technology.
8. What is Ti plasmid?Name the organism where it is found?How does it help in genetic engineering?
9. What are genetically modified organisms? Give examples of one plant and one animal.
10. What are the advantages of molecular diagnostics over conventional methods?
11. What are Cry proteins? Name an organism that produces it. How has man exploited this protein to his benefit?
12. Expand PCR. How is it useful in biotechnology?
13. Name the following-
(a). The first transgenic cow
(b). The substance used as medium in gel electrophoresis
(c). The enzyme used to digest cell wall of bacteria
(d). The enzyme characteristic of retroviruses.
14. What is a cloning vector? Explain the technique of using such a vector in E. coli.
15. Compare and contrast the advantage and disadvantages of production of GM crops.
16. What are the disadvantages of insulin from animal sources. What are the concerns about transgenic insulin?
17. What is gene therapy? Illustrate using the example of ADA deficiency.
18. Expand PCR. What is its use in diagnostics?
19. Define biopiracy. What are the concerns about Neem and Turmeric?
20. Mention any six fields of application of biotechnology in human welfare.
-Dr Neeta Singh PGT BIO
Sub: Biology
Sample Questions for Low Achievers
Dr Neeta Singh PGT BIO
UNIT-IV 2Marks Questions
1. Explain any two methods of vectorless gene transfer.
2. What is a palindromic sequence on DNA? Why is it useful in recombinant DNA technology?
3. What are restriction enzymes? Name and describe their two major kinds.
4. Name the technique used for separation of DNA fragments. What is its principle?
5. How is Agrobacterium tumefaciens used as a vector for transformation of plant cells?
6. Mention the key tools necessary for rDNA technology.
7. What is genetic engineering? List the steps involved in rDNA technology.
8. What is Ti plasmid?Name the organism where it is found?How does it help in genetic engineering?
9. What are genetically modified organisms? Give examples of one plant and one animal.
10. What are the advantages of molecular diagnostics over conventional methods?
11. What are Cry proteins? Name an organism that produces it. How has man exploited this protein to his benefit?
12. Expand PCR. How is it useful in biotechnology?
13. Name the following-
(a). The first transgenic cow
(b). The substance used as medium in gel electrophoresis
(c). The enzyme used to digest cell wall of bacteria
(d). The enzyme characteristic of retroviruses.
14. What is a cloning vector? Explain the technique of using such a vector in E. coli.
15. Compare and contrast the advantage and disadvantages of production of GM crops.
16. What are the disadvantages of insulin from animal sources. What are the concerns about transgenic insulin?
17. What is gene therapy? Illustrate using the example of ADA deficiency.
18. Expand PCR. What is its use in diagnostics?
19. Define biopiracy. What are the concerns about Neem and Turmeric?
20. Mention any six fields of application of biotechnology in human welfare.
-Dr Neeta Singh PGT BIO
Saturday, December 22, 2007
SAMPLE PAPER-Class: XII Sub: Biology
DR NEETA SINGH PGT ( BIOLOGY)
K V HAZRATPUR
Instructions: As usual
Section-A
The discovery of an enzyme revolutionized the field of genetic engineering and changed the central dogma of molecular biology in 1975. Name the enzyme and the reaction catalyzed by it?
Name the process of rupture of Graffian follicle and the subsequent release of egg from the ovary.
What name is given to the type of growth that assumes a sigmoid curve?
Which type of immunity is provided by vaccination?
Mention the two key concepts of Darwinism?
What do the oral contraceptive pills contain?
How is maize plant adapted for anemophily?
Name the two richest zones of biodiversity in India.
Section-B
9. What are sacred groves? What is their role in conservation of biodiversity?
10. How is phosphorus cycle different from carbon cycle?
11. The gene for Hemophilia doesn’t pass from father to son or from mother to daughter. Name the type of inheritance and explain the mechanism.
12. What is the processing of hnRNA? Why is it necessary in eukaryotes?
13. Name the two types of cells present in the inner lining of seminiferous tubule. What are their functions?
14. What are the drawbacks of conventional insulin? How does transgenic insulin overcome these?
15. What is tapetum? What is its role in the developing anther?
16. Workout the possible genotypes and phenotypes in the offspring produced in a cross between a red flowered (homozygous) and a white flowered (homozygous) 4O’clock plant. Name the type of inheritance shown by the cross.
17. What are the characteristics of acquired immunity? Which of these is exploited in vaccination?
Or
The base sequence on one of the strands of DNA is-
ATGTCTATAGGGCTACC
(a). Write the base sequence of its complementary strand.
(b). What will be the sequence of mRNA transcribed on it?
18. Name the labeled parts of the given diagram.
Section-C
19. What are Cry proteins? Name an organism that produces them. How is it being used in
crop protection?
20. What are the exceptions of Mendel’s law of Independent assortment? Why were these
not detected by Mendel?
21. Bring out the salient features of Genetic code. Why is the code said to be degenerate?
(a). What are methanogens?
(b). How are biofertilizers more advantageous over traditional fertilizers?
23. How can one prove Darvinian theory of Natural selection true by putting forward an
example? Explain.
24.What are statins? Where are they produced? How are they useful to man?
25. What is corpus luteum? Mention its role as an endocrine gland?
26.What are the activities included in ex situ strategies of conservation of biodiversity?
Explain.
27. How are the autoimmune diseases different from immunodeficiency diseases? Give
examples of each.
Or
What are interferons? Which type of immunity do they provided? Explain.
Section-D
28. Where do the transcription and translation occur in a cell? Explain the process of
translation in eukaryotic cell.
Or
What is Lac oparon? How is the operator switched on or off in the expression of genes in
this oparon?
29. (a).What are algal blooms? How are they formed?Give two harm ful effects of it in a
water body.
(b). Why does biomagnification occur with some substances? Give example
Or.
(a).What is Jhum cultivation? Explain how it is responsible for deforestation.
Describe organic farming.
Name the most common method of removal of particulate air pollutants.
30.(a) Why is autogamy discouraged in plants? Memtion any four adaptations to ensure xenogamy.
(b).Draw a labeled diagram of V.S. of a maize grain.
Or
Where and when does oogenesis take place in human female? Describe the events of female reproductive cycle.
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
DR NEETA SINGH PGT ( BIOOGY)
K V HAZRATPUR
Sunday, November 25, 2007
SAMPLE QUESTION PAPER (2)
X Science (Theory)
-RAVI MOHAN TGT SCIENCE
Time – 21/2 Max.Marks - 60
General Instructions :-
1. The question paper comprises of two sections A and B. You are to attempt both the sections.
2. All questions are compulsory.
3. There is no overall choice. However internal choice has been provided in the some questions. You are the attempt only one options in such questions .
4. You are advised to attempt all the question of section A and section B separately.
5. Questions number 1-6 in section A and 17-19 in section B are very short answer questions and carry one marks each
6. Question number 7-10 in section A and 20-24 in section B are short answer questions and carry two marks each.
7. Question number 11-14 in section A and 25-26 in section B are short answer questions and carry three marks each.
8. Question number 15 and 16 in section A and 27 in section B are short answer questions and carry five marks each.
SECTION-A
Name one metal which displaces copper from copper sulphate solution and one metal which does not.
Why does carbon form largest number of compounds?
Name the organic compound used as preservative in pickle and has molecular formula C2H4O2 .
What constitutes the field of a magnet?
Why is tungsten metal selected for making filaments of incandescent lamp bulbs?
Two thin lenses of power +2.5 D and -2.5 D are placed in contact. Find the power and focal length of combination.
Write the process to convert an unsaturated hydrocarbon into saturated hydrocarbon. Give its industrial application.
What do you mean by a precipitation reaction? Explain giving example.
Observe the following diagram and answer questions given below :-
Time – 21/2 Max.Marks - 60
General Instructions :-
1. The question paper comprises of two sections A and B. You are to attempt both the sections.
2. All questions are compulsory.
3. There is no overall choice. However internal choice has been provided in the some questions. You are the attempt only one options in such questions .
4. You are advised to attempt all the question of section A and section B separately.
5. Questions number 1-6 in section A and 17-19 in section B are very short answer questions and carry one marks each
6. Question number 7-10 in section A and 20-24 in section B are short answer questions and carry two marks each.
7. Question number 11-14 in section A and 25-26 in section B are short answer questions and carry three marks each.
8. Question number 15 and 16 in section A and 27 in section B are short answer questions and carry five marks each.
SECTION-A
Name one metal which displaces copper from copper sulphate solution and one metal which does not.
Why does carbon form largest number of compounds?
Name the organic compound used as preservative in pickle and has molecular formula C2H4O2 .
What constitutes the field of a magnet?
Why is tungsten metal selected for making filaments of incandescent lamp bulbs?
Two thin lenses of power +2.5 D and -2.5 D are placed in contact. Find the power and focal length of combination.
Write the process to convert an unsaturated hydrocarbon into saturated hydrocarbon. Give its industrial application.
What do you mean by a precipitation reaction? Explain giving example.
Observe the following diagram and answer questions given below :-
What the distance OF is called?
Write the position and nature of the image formed.
Refractive index of water is 4/3 and glass is 3/2 with respect to air. What is refractive index of glass with respect to water?
Atomic radii of the elements of the second period are given below:-
Period – II (elements)
Atomic Radii (pm)
Arrange them in decreasing order of their atomic radii.
Which elements have the largest and smallest atoms?
How does the atomic radius change as you go from left to right in a period?
(a) When does an electric short circuit occur?
(b) Why is it necessary to earthing appliances?
Six solutions A,B,C,D,E and F when tested with universal indicator showed pH as 4,1,11,2,7 and 9 respectively. Which solution -
a. Neutral
b.Strong acid
c.Strong base
d. Weak base
f. Arrange them in order of increasing hydrogen ion concentrations.
An object 3 cm high is placed at a distance of 20 cm in front of a convex lens of focal length 12 cm. Find the position, Nature and size of the image formed.
What are factors affecting the magnetic field produced by a current carrying conductor? Write the magnetic field due to infinitely long current carrying conductor.
OR Draw the schematic diagram of a circuit containing the following electrical components:- (a) a resistance (b) a voltmeter (c) a cell (d) an electric bulb (e) an ammeter (f) plug key. Write the formula to calculate the effective resistance of two resistances connected in series and parallel.
Write the chemical name and formula of Plaster of Paris. Write its two uses and its important properties.
OR
Explain why :-
(i) 24 carrot gold cannot be used for making ornaments.
(ii) Aluminium is used for making cooking utensils.
(iii) Conc. HNO3 can be stored in Aluminium container.
(iv) Aluminium is used for making electrical wires.
(v) Aluminium cannot be extracted by reducing alumina with carbon.
SECTION-B
Name the juice stored in gallbladder. Where it is secreted?
What is the cause of muscle fatigue after hard physical work?
What is acid rain? Name the gases responsible for acid rain.
Why we say energy flow in the biosphere is ‘Unidirectional’.
Suggest any two ways to strike a balance between environment and development.
What is nucleotide? Name the type of nucleotide present in DNA and RNA.
Define the terms unisexual and bisexual giving one example of each.
Write one difference between the following :-
Arteries & Veins.
Role of chloroplast & mitochondria.
Draw a diagram of a nerve cell and label the following parts :-
Axon
Cyton
Dendrites
Ranvier’s node.
State the two vital functions of the human kidney. Name the procedure used in the working of artificial kidney.
Given below is a schematic representation of circulatory system in man. Study the diagram and answer the following:-
Which elements have the largest and smallest atoms?
How does the atomic radius change as you go from left to right in a period?
(a) When does an electric short circuit occur?
(b) Why is it necessary to earthing appliances?
Six solutions A,B,C,D,E and F when tested with universal indicator showed pH as 4,1,11,2,7 and 9 respectively. Which solution -
a. Neutral
b.Strong acid
c.Strong base
d. Weak base
f. Arrange them in order of increasing hydrogen ion concentrations.
An object 3 cm high is placed at a distance of 20 cm in front of a convex lens of focal length 12 cm. Find the position, Nature and size of the image formed.
What are factors affecting the magnetic field produced by a current carrying conductor? Write the magnetic field due to infinitely long current carrying conductor.
OR Draw the schematic diagram of a circuit containing the following electrical components:- (a) a resistance (b) a voltmeter (c) a cell (d) an electric bulb (e) an ammeter (f) plug key. Write the formula to calculate the effective resistance of two resistances connected in series and parallel.
Write the chemical name and formula of Plaster of Paris. Write its two uses and its important properties.
OR
Explain why :-
(i) 24 carrot gold cannot be used for making ornaments.
(ii) Aluminium is used for making cooking utensils.
(iii) Conc. HNO3 can be stored in Aluminium container.
(iv) Aluminium is used for making electrical wires.
(v) Aluminium cannot be extracted by reducing alumina with carbon.
SECTION-B
Name the juice stored in gallbladder. Where it is secreted?
What is the cause of muscle fatigue after hard physical work?
What is acid rain? Name the gases responsible for acid rain.
Why we say energy flow in the biosphere is ‘Unidirectional’.
Suggest any two ways to strike a balance between environment and development.
What is nucleotide? Name the type of nucleotide present in DNA and RNA.
Define the terms unisexual and bisexual giving one example of each.
Write one difference between the following :-
Arteries & Veins.
Role of chloroplast & mitochondria.
Draw a diagram of a nerve cell and label the following parts :-
Axon
Cyton
Dendrites
Ranvier’s node.
State the two vital functions of the human kidney. Name the procedure used in the working of artificial kidney.
Given below is a schematic representation of circulatory system in man. Study the diagram and answer the following:-
i. Label the parts 1-6
ii. What is the specific name of blood circulation between heart and lung?
iii. Name covering which protect the heart. OR
What are fossils? Give two uses of fossils. How does the study of fossils provide evidence in favour of organic evolution?
Monday, November 19, 2007
SAMPLE QUESTION PAPER
रवि मोहन
X
Science (Theory)
Time – 2.30 Max.Marks - 60
General Instructions :-
The question paper comprises of two sections A and B. You are to attempt both the sections.
All questions are compulsory.
There is no overall choice. However internal choice has been provided in the some questions. You are the attempt only one options in such questions .
You are advised to attempt all the question of section A and section B separately.
Questions number 1-6 in section A and 17-19 in section B are very short answer questions and carry one marks each
Question number 7-10 in section A and 20-24 in section B are short answer questions and carry two marks each.
Question number 11-14 in section A and 25-26 in section B are short answer questions and carry three marks each.
Question number 15 and 16 in section A and 27 in section B are short answer questions and carry five marks each.
SECTION-A
1. If the magnification of a body of size 1m is 2. What is the size of the image?
2. What do you mean by “rancidity”?
3. what is double the amount of gas v collected in one of the test tubes on electrolysis of water ? Name this gas. 4. Name the most metallic and most non- metallic element in the periodic table.
5. Name an acid base indicator prepared at home. 6. What is meant by the statement that “potential difference between points A & B in an electric field is 1 Volt”?
7. How many 176 resistors (in parallel) are required to carry 5A in 220 V line?
8. Why should curd and sour substance not be kept in brass and copper vessels?
9. Two electric lamps of 100 W and 25W respectively are joined in parallel to supply of 200 V calculate the total current flowing through the circuit .
10. What happens when aluminium metal reacts with sodium hydroxide? Give the equation for the chemical reaction?
11. Describe with the help of a labeled diagram the method of refining of metals by electrolytic method taking copper as an example.
12. Here are given some elements belonging to a specific group and period in the periodic table
Li Be B C N O F Na Mg Al Si P S Cl
Give answer:
(i) Which is more reactive between F & Cl?
(ii) The most metallic and the most non-metallic element.
(iii) Element of smallest atomic size and the element of largest atomic size? 13. A concave mirror of focal length 15 cm. forms and image of an object kept at a distance of 10 cm. from the mirror . Find the position, natural and size of image formed by it.
14. Give three advantages of nuclear fusion process over nuclear fission to generate electricity.
15. What is ohm’s law? Light an experiment to verify ohm’s law.
Or
What is solenoid? Draw the magnetic field lines due to a current carrying solenoid. Write some properties of magnetic field lines…
16. Explain the following terms with suitable examples:
(a) Oxidation (b)Reduction (c) Oxidizing agent (d) Reducing agent (e) chemical equation
Or
Define pH. Explain the role of pH in every day life.
SECTION - B
17. Give an example of a vestigial organ present in human.
18. What is a food chain?
19. Where does fertilization takes place in the human beings?
20. What is the roll of decomposers in an ecosystem?
21. What are fossils? what do they tell us about the process of evolution ?
22. Write the cause of depletion of ozone layer in the atmosphere.
23. How does intestinal juice contribute to the digestion of proteins?
24. Describe double fertilization in plant.
25. Draw a well labeled diagram of the longitudinal section of a flower and briefly write about its sexual whorls .
26. Define reflex action with suitable examples.
27. (a) Name the blood groups under ABO system.
(b) Differentiate between universal donor and universal recipient under this system.
Or
Explain the human digestive system with the help of a diagram.
X
Science (Theory)
Time – 2.30 Max.Marks - 60
General Instructions :-
The question paper comprises of two sections A and B. You are to attempt both the sections.
All questions are compulsory.
There is no overall choice. However internal choice has been provided in the some questions. You are the attempt only one options in such questions .
You are advised to attempt all the question of section A and section B separately.
Questions number 1-6 in section A and 17-19 in section B are very short answer questions and carry one marks each
Question number 7-10 in section A and 20-24 in section B are short answer questions and carry two marks each.
Question number 11-14 in section A and 25-26 in section B are short answer questions and carry three marks each.
Question number 15 and 16 in section A and 27 in section B are short answer questions and carry five marks each.
SECTION-A
1. If the magnification of a body of size 1m is 2. What is the size of the image?
2. What do you mean by “rancidity”?
3. what is double the amount of gas v collected in one of the test tubes on electrolysis of water ? Name this gas. 4. Name the most metallic and most non- metallic element in the periodic table.
5. Name an acid base indicator prepared at home. 6. What is meant by the statement that “potential difference between points A & B in an electric field is 1 Volt”?
7. How many 176 resistors (in parallel) are required to carry 5A in 220 V line?
8. Why should curd and sour substance not be kept in brass and copper vessels?
9. Two electric lamps of 100 W and 25W respectively are joined in parallel to supply of 200 V calculate the total current flowing through the circuit .
10. What happens when aluminium metal reacts with sodium hydroxide? Give the equation for the chemical reaction?
11. Describe with the help of a labeled diagram the method of refining of metals by electrolytic method taking copper as an example.
12. Here are given some elements belonging to a specific group and period in the periodic table
Li Be B C N O F Na Mg Al Si P S Cl
Give answer:
(i) Which is more reactive between F & Cl?
(ii) The most metallic and the most non-metallic element.
(iii) Element of smallest atomic size and the element of largest atomic size? 13. A concave mirror of focal length 15 cm. forms and image of an object kept at a distance of 10 cm. from the mirror . Find the position, natural and size of image formed by it.
14. Give three advantages of nuclear fusion process over nuclear fission to generate electricity.
15. What is ohm’s law? Light an experiment to verify ohm’s law.
Or
What is solenoid? Draw the magnetic field lines due to a current carrying solenoid. Write some properties of magnetic field lines…
16. Explain the following terms with suitable examples:
(a) Oxidation (b)Reduction (c) Oxidizing agent (d) Reducing agent (e) chemical equation
Or
Define pH. Explain the role of pH in every day life.
SECTION - B
17. Give an example of a vestigial organ present in human.
18. What is a food chain?
19. Where does fertilization takes place in the human beings?
20. What is the roll of decomposers in an ecosystem?
21. What are fossils? what do they tell us about the process of evolution ?
22. Write the cause of depletion of ozone layer in the atmosphere.
23. How does intestinal juice contribute to the digestion of proteins?
24. Describe double fertilization in plant.
25. Draw a well labeled diagram of the longitudinal section of a flower and briefly write about its sexual whorls .
26. Define reflex action with suitable examples.
27. (a) Name the blood groups under ABO system.
(b) Differentiate between universal donor and universal recipient under this system.
Or
Explain the human digestive system with the help of a diagram.
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