How can you obtai

The solution of common salt and water is taken in a china dish and heated gently by using a burner. The water present in salt solution will form water vapours and escape into atmosphere. When all the water present in the solution of common salt and water gets evaporated, then common salt is left behind in the china dish as a white solid.

The process of evaporation is used on a large scale to obtain common salt from sea water. Evaporation is used for recovering dissolved solid substances from liquid mixtures but the liquid itself cannot be recovered by this method.