Question

Which of the following can be separated by crystallisation?

• A. Copper sulphate
• B. Salt
• C. Potash alum (phitkari)
• D. All of the above

Answer 1

The correct option is D All of the above

Crystallisation is the process that is used to separate a pure solid in the form

of its crystals from a solution. Copper sulphate, salt and potash alum can be purified by this method. In this process, the solution of the substance is heated and then cooled to form crystals.