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Write the name and formula of one salt which contains: Two molecules of water of crystallisation.

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Question

Write the name and formula of one salt which contains:

Two molecules of water of crystallisation.

Very Short Answer
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Solution

Gypsum (calcium sulphate crystals) contains two molecules of crystallisation in one formula unit and hence is written as CaSO4.2H2O. It is also called calcium sulphate dihydrate.

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Chapter 2: Acids, Bases and Salts - Exercise 3 [Page 124]

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Lakhmir Singh Chemistry [English] Class 10
Chapter 2 Acids, Bases and Salts
Exercise 3 | Q 81. (a) | Page 124
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