Question

What is different between copper sulphate and copper sulphide?

Answer 1

The difference is that CuSO4⋅5H2O has a blue colour due to the presence of water molecules in its structure (for same reason ferrous sulphate has a green colour), while anhydrous copper (II) sulphate, CuSO4, is white.

Answer 2

$\huge\fbox\purple{❥Answer}$

Copper ores are used in countries where these are mined. By heating copper scrap with sulphur to produce copper sulphide which is then oxidised to form copper sulphate.