On placing a copper coin in a test tube containing green ferrous sulphate solution, it will be observed that the ferrous sulphate solution

These are the options for the question:

(a) turns blue, and a grey substance is deposited on the copper coin. (b) turns colourless and a grey substance is deposited on the copper coin. (c) turns colourless and a reddish–brown substance is deposited on the copper coin. (d) remains green with no change in the copper coin.

The correct answer is : (d) Ferrous sulphate solution remains green with no change in the copper coin.