Question

A blue color salt is heated in a test tube. The colour changes to white. On adding water salt again changes blue solution. Explain the phenomenon

Answer 1

heya bruhh here is ur anss

since the blue coloured salt is usually copper sulphate (CuSO4) when
it is been heated loses all the water molecules of crystallisation and it will be white
again if u add a drop of water u will get the blue color back..