Question

what is water of crystallisation

Answer 1

water of cryatallization is the fixed amount of water associated with hydrated crystals which gives them a particular shape and colour.
an examples of hydrated crystal is CuSO4.5H20 where the 5H20 part is the water of crystallization.
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Answer 2

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✔️✔️✨ HERE IS YOUR ANSWER....

Water of crystallisation is the fixed number of water molecules present in one formula unit of salt.

✔️ Five water molecules as water crystallisation is present in one formula unit of copper sulphate.
✔️ Gypsum has two water molecules as water of crystallisation.

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