A common feature observed in the crystals of washing soda, copper sulphate, gypsum and ferrous sulphate is…

A common feature observed in the crystals of washing soda, copper sulphate, gypsum and ferrous sulphate is that all
  1. exhibit basic nature
  2. exhibit acidic nature
  3. have fixed number of molecules of water of crystallisation in one formula unit of these salts.
  4. are coloured

Solution

Have fixed number of molecules of water of crystallisation in one formula unit of these salts.

Asked in: CBSE

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