JEE · NEET Previous Year Question

The principle of column chromatography is:

Topic: JEE PYQ

Answer: D. Full step-by-step solution below.

  1. AGravitational force
  2. BCapillary action.
  3. CDifferential solubility of the substances in the mobile phase.
  4. DDifferential adsorption of the substances on the solid phase.

Correct answer: D

Solution

(d) In column chromatograph; a solid adsorbent is packed on a column and a solution containing number of solute particles is allowed to flow down the column. The solute molecules get absorbed on the surface of adsorbent and move through column at different rates based on differential adsorption of the substances on the solid phase.

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