Question

लवण के एक सूत्र इकाई में जल के निश्चित अणुओं की संख्या क्या कहलाती है।ईकाइ​

Answer 1

Definite number of molecule attached to slat are  called water of crystallization

Explanation:

Water of crystallization are number of water molecules present in the salt these are different in different salts for example in $CuSo_45H_2O$ there are 5 water of crystallization.

Main role of crystallization of water is to form crystal and these are also responsible for the color and shape of the crystal so water of crystallization  has very important role in salts.

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