TRB MODEL QUESTIONS FOR PHYSICS
16. |
Which of the following is used in match indusrty? |
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- A. sodium chloride
- B. sodium carbonate
- C. potassium chlorate
- D. sodium bicarbonate
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17. |
Normal temperature of human body is |
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- A. 37°C
- B. 37 K
- C. 90 K
- D. 100°C
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18. |
An substance for sublimating substance is |
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- A. sulphur
- B. camphor
- C. copper sulphate
- D. sodium chloride
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19. |
The conversation of a vapour gas into a liquid by cooling is known as |
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- A. melting
- B. condensation
- C. freezing
- D. evaporation
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20. |
The molecular weight of water is |
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