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JEE Main · 2024 · 29 Jan 2024 · Shift 2 · Practical and Analytical Chemistry

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Chromatographic technique/s based on the principle of differential adsorption is/are
A. Column chromatography
B. Thin layer chromatography
C. Paper chromatography

Choose the most appropriate answer from the options given below:
  1. (A)B only
  2. (B)A only
  3. (C)A & B only✓ Correct
  4. (D)C only

Answer: (C)

Solution

Column chromatography and thin layer chromatography both separate mixture components on the basis of differential adsorption onto a solid stationary phase such as silica gel or alumina.

Paper chromatography instead separates components by partition between the mobile phase and the water held within the cellulose fibres of the paper, not by adsorption.

Column chromatography and thin layer chromatography (A and B) are the techniques based on differential adsorption.

JEE Main · 2024 · 29 Jan 2024 · Shift 2 · Single correct option

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