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JEE Main · 2021 · 16 Mar 2021 · Shift 1 · Practical and Analytical Chemistry

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In chromatography technique, the purification of compound is independent of:
  1. (A)Physical state of the pure compound✓ Correct
  2. (B)Solubility of the compound
  3. (C)Mobility or flow of solvent system
  4. (D)Length of the column or TLC plate

Answer: (A)

Solution

Chromatography separates compounds based on their differential migration through a stationary phase under the influence of a mobile phase. The separation depends on the compound's solubility in the mobile phase, the mobility/flow rate of the solvent system, and the length of the separation medium (column or TLC plate), which affects resolution. However, the physical state (solid, liquid, gas) of the pure compound after isolation does not affect the chromatographic separation process itself.

JEE Main · 2021 · 16 Mar 2021 · Shift 1 · Single correct option

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