Question

Which type of mixture can be separated by crystallisation?

• A. Solid - liquid homogeneous mixture
• B. Liquid - liquid homogeneous mixture
• C. Solid - liquid heterogeneous mixture
• D. Solid - solid heterogeneous mixture

Answer 1

The correct option is A Solid - liquid homogeneous mixture

Crystallisation is used to separate pure solid in the form of crystals from its solution. Therefore, we need solid-liquid homogeneous mixtures (which is also known as solution), to carry out crystallisation process. During crystallisation, the excess solute present at a particular temprature, separates out of solution in the form of crystals.