Question

In a testtube a salt X is given. On heating it changes its colour from blue to white.To change its colour from blue to white the salt X looses what?

Answer 1

SALT -> Copper Sulphate

Copper Sulphate Penta Hydrate looses water of crystallisation (i.e. 5 water molecules) to get White from Blue.

CuSO4.5H2O ----HEAT----> CuSO4 + 5H2O