A mixture of ZnCl₂ and PbCl₂ can be separated by:
 

The crystallization method is generally used for the purification of solids. The salt we get from seawater can have many impurities in it and to remove such impurities, the process of crystallization is used.

This process separates a pure solid in the form of its crystals from a solution. This shows that the crystallization technique is better than the simple evaporation technique therefore, a mixture of ZnCl₂ and PbCl₂ can be separated by crystallization.