Model Question Paper Science www.jac.nic.in : Jharkhand Tenth / SSLC / 10th Std

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Document Described : Science Question Paper, Jharkhand Question Paper

Science
Class X
Total No. of Questions : 16 + 8 = 24
Total No. of Pages : 19
Full Marks : 60

GENERAL INSTRUCTIONS :
1. Candidates are required to give their answers in their own words as far as practicable.
2. The question paper has two Groups ‘A’ and ‘B’ and it is compulsory to answer all the questions of both the Groups.
i) Group ‘A’ ( Physics and Chemistry) — 40 Marks
ii) Group ‘B’ ( Biology ) — 20 Marks

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3. Marks allotted to each question are printed against it.
4. Write the answers of questions in the context of instructions given with the questions.
5. Internal options have been given for some questions. You are to attempt only one option in such questions.
6. Question Nos. 1 to 4 of Group A and Question Nos. 17 & 18 of Group B are ‘Very short answer’ type questions. Answer these questions in one word or in one sentence each.
7. Question Nos. 5 to 8 of Group A and Question Nos. 19 & 20 of Group B are ‘Short Answer-II’ type questions. Answer each one of these questions in 30 to 40 words.
8. Question Nos. 9 to 14 of Group A and Question Nos. 21 to 23 of Group B are ‘Short Answer-I’ type questions. Answer these questions in 40 to 50 words each.
9. Question Nos. 15 & 16 of Group A and Question No. 24 of Group B are ‘Long Answer’ type questions. Answer these questions in 70 words each.
10. Draw neat and clean diagrams wherever necessary.
11. Do all the rough work on the pages given at the end of the question-cum-answerbooklet and nowhere else.

Group A : ( Physics & Chemistry )
Q. 1. What is the SI unit of potential difference ? ( Answer in one word or in one sentence ) 1
Q. 2. Write the chemical formula of quicklime. ( Answer in one word or in one sentence ) 1
Q. 3. Name the organisation which looks after the space programme in India. ( Answer in one word or in one sentence ) 1
Q. 4. Write the chemical formula of methyl alcohol. ( Answer in one word or in one sentence ) 1
Q. 5. Find the power of a concave lens of focal length 2 m. ( Answer in 30 to 40 words ) 2
Q. 6. What is efflorescence ? Name one compound which shows efflorescence. ( Answer in 30 to 40 words ) 2
Q. 7. Distinguish between natural and artificial satellites. ( Answer in 30 to 40 words ) 2
Q. 8. Write the names of two metals which do not react with oxygen. ( Answer in 30 to 40 words ) 2
OR
Why is sulphuric acid known as the ‘King of Chemicals’ ? ( Answer in 30
to 40 words )
Q. 9. Mention any two advantages and disadvantages of producing
hydroelectricity by building dams on rivers. ( Answer in 40 to 50 words )
OR
Mention the nature of image formed in Simple Microscope. Write the expression for its magnification. ( Answer in 40 to 50 words )
Q. 10. What is thermite reaction ? Write the chemical reaction and give one use. ( Answer in 40 to 50 words ) 3
Q. 11. What do you mean by total internal reflection of light ? Write two conditions for it. ( Answer in 40 to 50 words ) 3
Q. 12. What is meant by denaturated alcohol ? How is it prepared ? ( Answer in 40 to 50 words ) 3
Q. 15. (i) What are shortcircuiting and overloading in an electric supply ?
Explain.
(ii) Illustrate the action of an electric fuse.
( Answer in about 70 words ) 5
OR
Distinguish between nuclear fission and fusion. 5
( Answer in about 70 words )
Q. 16. Name an important ore of aluminium. By which process is this ore
concentrated ? How is aluminium extracted from this concentrated ore ?
Give equation. ( Answer in about 70 words ) 5
OR
Write the chemical formula of haematite. Write the chemical reactions
that take place in the blast furnace for the extraction of iron from
haematite. ( Answer in about 70 words ) 5

Class X ( Supplementory )
Science

Group A : ( Physics & Chemistry )
Q. 1. What is the SI unit of charge ? ( Answer in one word or in one sentence )
Q. 2. Write the chemical formula of bleaching powder. ( Answer in one word or in one sentence ) 1
Q. 3. Write the full name of NASA. ( Answer in one word or in one sentence ) 1
Q. 4. Give the name of the functional group in RCHO. ( Answer in one word or in one sentence ) 1
Q. 5. The power of a lens is + 2·0 D. Find its focal length. 2
Q. 6. Write the names of four factors which affect the rate of reaction. ( Answer in 30 to 40 words ) 2
Q. 7. Distinguish between polar and equatorial orbits for artificial satellites. ( Answer in 30 to 40 words ) 2
Q. 8. Write the names of two oxides which are neither acidic nor basic. ( Answer in 30 to 40 words ) 2
OR
Why is sodium kept immersed in kerosene oil ? ( Answer in 30 to 40 words ) 2
Q. 9. Mention any three differences between box type solar cooker and a concentrator type solar heater. ( Answer in 40 to 50 words ) 3
OR
What is Hypermetropia ? Mention its causes. How can this defect be corrected ? ( Answer in 40 to 50 words ) 3
Q. 10. What do you mean by irreversible reaction ? Give one example. ( Answer in 40 to 50 words ) 3

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Please send me SSLC English medium question papers with answer.