Question

water of crystallisation -expl

Answer 1

Water of crystallization is the fixed number of water molecules present in the Crystal structure..

Answer 2

heya!! friend!

here's ur answer :-

it is the fixed number of water molecules chemically attached to each formula unit of a salt in its crystalline form is called water of crystallisation .the salts which contain water of crystallisation are called hydrated salts 
for example , CuSO4.5H2O

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hope it helps ya ^_^