In the preparation of H_(2)O_(2) from Na_(2)O_(2) with ice cold sulphuric acid, Sodium sulphate is cystallised in the form of

In the preparation of H_(2)O_(2) from Na_(2)O_(2) with ice cold sulphu

1.	In the preparation of H_(2)O_(2) from Na_(2)O_(2) with ice cold sulphuric acid, Sodium sulphate is cystallised in the form of
Answer» `Na_2SO_4.H_2O` `Na_2SO_4. 7H_2O` `Na_2SO_4. 10H_2O` `Na_2SO_4. 6H_2O` ANSWER :C