Question

chapter-Physical and chemical change

Long answer type question
Q.Name the method used to obtain pure crystals of a substance. Describe one of its uses.​

Answer 1

Answer:

The process of forming large crystals of pure substances from their solutions is known as Crystallization. The principle of crystallization is concerned with the thermodynamic conditions of crystallization and the kinetics of crystal nucleation and growth.Crystallization is the physical transformation of a liquid solution or gas to a crystal which is a solid with an ordered internal arrangement of molecules, ions or atoms.

Answer 2

here is your answer from my notebook btw I am from class 7th

the method used to obtain pure crystals of a substance is known as CRYSTALLISATION