Compulsory Science Question Paper | 2075 [2019] | RE-111EP | SEE
Compulsory Science Question Paper 2075-2019 re-111ep see
DR Gurung
COMPULSORY SCIENCE (अनिवार्य विज्ञान)
Code - RE-111'EP'
(New Course)
Time: 2 hours 15 minutes
Full Marks: 75
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Answer all the questions. (सबै प्रश्नहरुको उत्तर दिनुहोस्।)
समूह 'क' (Group 'A') [15x1=15]
1. Write short answer of the following questions.
a. What is free fall?
b. State the law of floatation.
c. Define heat energy in terms of kinetic energy of molecules.
d. Where should be object kept infront of convex lens to get magnification 1?
e. Write the name of high quality coal.
f. Define promotor.
g. What is an alkali?
h. Write two ores of silver.
i. Write two examples of thermosetting plastic.
j. Write the main function of insulin hormone.
k. What is blood pressure.
l. Write any two effects seen from klinefelter's disorder.
m. Write the name of upper part and lower part used in grafting.
n. Define monohybrid cross?
o. What is fossil?
समूह 'ख' (Group 'B') [13x2=26]
2. What happens to balloon filled with air, when it goes very high altitude from surface of earth? Why?
3. Gobar gas is more beneficial in rural area of Nepal. Give two reasons.
4. Nowadays clinical thermometer is replaced by digital thermometer. Why?
5. Write any two reasons for using nichrome wire as a heating element.
6. Write a chemical reaction between calcium and sulphuric acid. Mention the type of chemical reaction.
7. Write down any two differences between PVC and Bakelite.
8. Though hydrochloric acid is formed inside our body, it is not called organic acid. Why?
9. In general, iron is not used to make body parts of aeroplane. Why? Give any two reasons.
10. Write any two reasons that silk worm is useful insect.
11. A cell of girl contain only 45, XO chromosomes, which types of chromosome disorder is present in her body? Write any one symptom of it?
12. Write any two differences between binary fission in amoeba and budding in yeast.
13. Offsprings obtained from same parents show some similarities but they are not exactly similar to each other. Why? Write with reason.
14. Write any two applications of artificial satellites.
समूह 'ग' (Group 'C') [6x3=18]
15. A stone dropped freely from 72 m height of the tower and reaches the ground in 6 seconds. Calculate acceleration due to gravity of that stone. At what condition does the acceleration due to gravity becomes zero.16. If a heater with power 2000W runs one hour, it gives 4.2x103 KJ heat. What will be the temperature increased in 20kg of water with temperature 40OC by that heat? (Specific heat capacity of water is 4200J/kgOC).
17. Draw a diagram of laboratory preparation of ammonia gas and label any four parts. Why this gas can not be collected in the gas jar by downward displacement of water.
18. Which compound is represented by general formula CnH2n+1OH? If value of n is 2 in this formula which compound is formed? Write its structural formula. If OH of this compound is replaced by H which compound is formed? Write its name and molecular formula.
19. Draw a diagram of different parts of brain. Damage of which part of brain causes sudden death? Show this part in diagram.
20. Write any three applications of forest in our daily life.
21. Study the given diagram and answer the following questions.
i) What type of defect of vision is in the diagram of eye?
ii) What is the cause of this defect of vision?
iii) What is to be done to remedy such defect?
iv) Draw a diagram to show the remedy of this defect.
22. Study the given table and answer the given questions.
i) Write the name of elements indicated by A and B.
ii) Keeping aluminium instead of A, which product would you expect? Write molecular formula of it.
iii) Write valency of element C and chemical nature of it.
iv) Write the balanced chemical equation when 'C' reacts with 'B'.
23. Blood cells contain in blood of normal man is shown in chart. Study it and answer the following questions.
i) Name A, B and C.
ii) Which disease may occur if A is present in more number of blood?
iii) Which disease may occur if C is present in less number in blood?
iv) If a man cuts his hand and blood doesnot clot, which one is present in less in blood among A, B and C?
24. Consequences like skin burn and skin cancer were observed when people take sunbath on earth surface. On the basis of it answer the given questions.
i) What is the cause of it?
ii) What is to be done for the control of it?
iii) In such condition, what is the effect of temperature on environment? Write any two effects.
Check and view SEE Compulsory Science Question Paper of 2075/2019:
DR Gurung
A Learner
(अज्ञान जस्तो ठूलो शत्रु अरु केही छैन।) 🙏🙏
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