Hydrated zinc sulphate is ________ in colour.

Hydrated copper sulphate is

Zinc sulphate is used for-

On heating, hydrated copper sulphate changes its colour from ............. to ....... .

Rinku took 10 mL each of two solutions A and B separately in two test tubes. The solutions were in copper sulphate and zinc sulphate respectively the colours of the two solutions were

The colour of Iron (II ) sulphate is __________.