11. Salt can be recovered from its solution by evaporation. Suggest some other technique for the same.

Salt can be recovered from its solution by crystallization process also. Crystallisation is a process employed for separating solute in the form of crystals from its saturated solution on cooling. In this process, the impure sample is dissolved in minimum amount of suitable solvent. The formed solution is heated to get a saturated solution. On cooling, this saturated solution produce pure crystals of the sample.