Question

Chromatography is a technique based on

• A. adsorption and then dispersion of solute
• B. absorption of solute
• C. hydration of solute
• D. evaporation of solute

Answer 1

The correct option is A

adsorption and then dispersion of solute

Explanation for Correct answer:-

Option(a) adsorption and then dispersion of solute:

• The collecting of molecules by the external or internal surfaces of solids or may be the surface of liquids is called Adsorption.
• The mixture of the gaseous phase gets separated as it passes through adsorbent bed and gets disperses.
• Hence it is the correct option.

Explanation for Incorrect answer:-

Option(b) absorption of solute:

• The transfer of one or more species from the gas phase to the solvent phase is known as Absorption of Solute.
• Hence it is the incorrect answer.

Option(c) hydration of solute:

• When water is used as the solvent, the dissolving process is called hydration.
• Hence it is the incorrect option.

Option(d) evaporation of solute:

• The change of solute to gas phase from the liquid phase is known as Evaporation of solute.
• Hence it is the incorrect option.

Therefore, Chromatography is a technique based on adsorption and hydration of solute. Hence Option(a) is correct option.