Question

Crystals of copper sulphate are prepared by the method of:

• A. Melting
• B. Crystallisation
• C. Solidification
• D. Evaporation

Answer 1

The correct option is B

Crystallisation

Crystals of copper sulphate are prepared by the method of crystallisation.

The process is as follows:

A cup full of water is taken in a beaker. The water is then heated and when it starts boiling, copper sulphate powder is added with stirring. Copper sulphate powder should be added till no more powder can be dissolved. It is then filtered into a china dish and allowed to cool. The solution should be kept undisturbed. After some time, you will see the crystals of copper sulphate.