JEE Main · 2023 · 11 Apr 2023 · Shift 1 · Practical and Analytical Chemistry

Thin layer chromatography of a mixture shows the following observation :

(A)A, C, B✓ Correct
(B)B, C, A
(C)C, A, B
(D)B, A, C

Answer: (A)

Solution

In TLC, the compound that travels farthest (highest Rf) is most mobile and interacts more with the mobile phase. From the TLC plate, A has the highest Rf (most mobile), followed by C, then B (least mobile). In column chromatography, the most mobile compound elutes first. Therefore, the elution order is A, C, B.

JEE Main · 2023 · 11 Apr 2023 · Shift 1 · Single correct option

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