1.

What is meant by water of crystallization. How many molecules of water are present in hydrated copper sulphate? Write its formula. What colour change do you observe when it is heated?

Answer»

SOLUTION :Water ofcrystallization is the FIXED NUMBER of water molecules present in one formula unit of salt.
(i) Five molecules of water.
(II) Formula: `CuSO_4. 5H_2O`
(ii) When heated its colour changes from blue to WHITE.


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