Question

Q3.If you put Iron nail in each
of the following liquids, Then in
which case Iron nail lose its
shine and appear dull
O Mustard oil
Soft drink
O coconut oil
O Kerosene​

Answer 1

Answer:

(b) An iron nail kept in soft drink would lose its shine and appear dull became soft drink contains carbonic acid which reacts with 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.