Question

Crystallization technique is better than simple evaporation technique give two reasons

Answer 1

• Evaporation is a vaporization process where surface of liquid changes into gaseous state due to heat.
• The process by which pure solid is separated from solution in the form of its crystals is called crystallization.
• Crystallization is better than evaporation because some solids can decompose or can get burned during evaporation.
• Also in some cases impurities can remain dissolved in the solution while evaporation which cannot be removed even after filtration.

Answer 2

Answer:

Evaporation is a vaporization process where surface of liquid changes into gaseous state due to heat.

The process by which pure solid is separated from solution in the form of its crystals is called crystallization.

Crystallization is better than evaporation because some solids can decompose or can get burned during evaporation.

Also in some cases impurities can remain dissolved in the solution while evaporation which cannot be removed even after filtration.