On Placing a Copper Coin in a Test Tube Containing Green Ferrous Sulphate Solution

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

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.

Correct answer is option D. Remains green with no change in the copper coin. Explanation: On placing a copper coin in a test tube containing green ferrous sulphate solution, it will be observed that the ferrous sulphate solution Remains green with no change in the copper coin.