Question

1. In which solution iron nail lose its shine and appear dull a)Kerosene b)Soft drink c)mustard oil d)coconut oil​

Answer 1

Explanation:

An iron nail kept in soft drink would lose its shine and appear dull became soft drink contains carbonic acid which reacts with the iron nail, so it gives dull appearance. Iron nail has no reaction with mustard oil, coconut oil and kerosene, so does not lose its shine, when kept in these solutions

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Answer 2

Answer:

b ) soft drink

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