Question

how many molecules of water of crystallization are present in one molecule of washing soda​

Answer 1

10 water molecule........

Answer 2

10 molecules is the correct answer. 10 molecules of water of crystallization are present in one molecule of washing soda.

The washing soda contains 10 molecules of water of crystallisation per unit formula.

Washing soda has formula Na2CO3.10 H2O.

It has 10 molecules of water of crystallization so that they would vary when compared to the other chemical substances to the highest extent.