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Question

Which of the following salts does not contain water of crystallization?
(a) Blue vitriol
(b) Baking soda
(c) Washing soda
(d) Gypsum


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Solution

The chemical formula of the given chemical compounds are:
Baking soda: NaHCO3
Blue vitriol: CuSO4.5H2O
Washing soda: Na2CO3.10H2O and
Gypsum: CaSO4.2H2O.

So, baking soda does not contain water of crystallization.


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