Question

what is crystallisation. name any three substances which can be purified using this technique

Answer 1

Like salt is example of is

Answer 2

Crystallization is the (natural or artificial) process by which a solid forms, where the atoms or molecules are highly organized into a structure known as a crystal. Some of the ways by which crystals form are precipitating from a solution, melting, or more rarely deposition directly from a gas. Attributes of the resulting crystal depend largely on factors such as temperature, air pressure, and in the case of liquid crystals, time of fluid evaporation.
examples are:-
1. CuSO4 can be separated by crystallization.
2. NaCl can also be separated by crystallization