Above image shows an experiment where copper sulphate crystals are heated. When we heat the
crystals, they turn white. If you moisten the crystals again with water you will find that colour of
crystals reappears .
(1) How many water molecules are present in one formula unit of copper sulphate
(a)5
(b)2
(c)6
(d)7

1 Answer

Answer :

(a)5

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