The correct statements among the following, for a "chromatography" purification method is:

Question

Canvas Classes · Accepted Answer

Step 1: Analyse Statement (a)

"Organic compounds run faster than solvent in TLC" ❌

False. By definition,  always. The solvent front travels faster than any compound. If a compound moved at the same speed as the solvent, it would have  — meaning zero adsorption. In practice, compounds always interact with the adsorbent to some extent, so  is always less than 1.

Step 2: Analyse Statement (b)

"Non-polar compounds are retained at top; polar compounds come down in column chromatography" ❌

False

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