Question

Identify chemical reactions and write your own observation (1). Putting iron powder in solution of copper sulphate (2). On heating ferrous sulphate

Answer 1

Iron displaces Copper from it’s solution and hence, the Blue-coloured Copper Sulphate solution turns to greenish Ferrous Sulphate and the copper displaced gets deposited on the iron nail.

So, the iron nail turns reddish-browndue to deposit of copper on it