Question

Explain a method to separate common salt from a mixture of chalk powder and common salt.

Answer 1

Method

1. The process of obtaining a non-volatile soluble solid from its solution by allowing the liquid component to vaporize is called evaporation.
2. In water, dissolve the mixture of chalk powder and common salt.
3. Chalk powder is insoluble in water, whereas common salt dissolves.
4. Using filter paper, chalk powder can be separated.
5. By evaporating water, salt is extracted from a salt and water solution.
6. Therefore, the method used for separation is evaporation.