21) What is the normal temperature of a human body?
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(C)
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Learn UPSC MCQs with answers [Page 3 of Department 85]
22) Bernoulli theorem is based on?
Correct Answer - Option
(A)
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23) An iron needle floats on the surface of water. What is the reason for this phenomenon?
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(C)
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24) One horsepower is equal to how many watts?
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(D)
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25) Which of the following is not oxidation?
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(A)
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26) When a solution of silver nitrate is added to a salt solution, a curd-like substance is produced. Which reaction is this?
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(B)
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27) What type of reaction is corrosion?
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(C)
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28) What is the increase in the proportion of oxygen in a chemical reaction called?
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(B)
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29) Sodium hydroxide and hydrochloric acid react to form sodium chloride and water. Which reaction is this?
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(A)
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30) Which of the following pairs of reactions always occur together?
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(C)
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