Question

3. An iron nail is kept in each of the following liquids: a) Kerosene, b) Mustard oil, c) Soft drink, d) Coconut
oil. In which case would it lose its shine and appear dull? Why?
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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.

Answer 2

Answer:

an iron nail kept in soft drink become dull and lose its shine as soft drink contains carbonic acid which reacts with iron nail,and gives a dull appearance.

Explanation:

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