Question

The crystallization technique is better than the simple evaporation technique and:

1. 'crystallization is a process that separates a pure solid in the form of its crystals from a solution.

2. it is applied for the purification of salt that we get from seawater.

3. it is applied for the separation of crystals of alum from impure samples.

Select the correct answer using the code given below.

1. 2 only
2. 1 only
3. 1, 2 and 3
4. 3 only

Answer 1

Correct Answer - Option 3 : 1, 2 and 3

The correct answer is 1,2 and 3.

• The crystallization technique is better than the simple evaporation technique and:
  • 'Crystalisation' is a process that separates a pure solid in the form of its crystals from a solution
  • It is applied for the purification of salt that we get from seawater
  • It is applied for the separation of crystals of alum from impure samples

• Crystallization or crystallization is the process by which a solid form, 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, freezing, or more rarely deposition directly from a gas.
• Evaporation
  • Evaporation is a type of vaporization that occurs on the surface of a liquid as it changes into the gas phase.
  • The surrounding gas must not be saturated with the evaporating substance.
  • When the molecules of the liquid collide, they transfer energy to each other based on how they collide with each other.