JEE Main 2022ChemistrySurface ChemistryColloidsmediumMCQ

JEE Main 2022 — Surface Chemistry Question with Solution

From: JEE Main 2022 (Online) 30th June Morning Shift

Question

TLC analysis of a mixture having 3 components (A, B, C) using silica gel as the stationary phase gave following Rf values; for A = 0.72, B = 0.48, C = 0.20.

Regarding the above observations, which one of the following statements is not correct for column chromatography of the mixture?

Choose an option

Show full solutionCorrect option: B
Correct answer
BC is the most soluble component in mobile phase

Step-by-step explanation

The (retardation factor) value is the ratio of the Solute's distance travelled to the Solvent's distance travelled.

Polar molecules will attract more toward adsorbent and cover smaller distance from the baseline. A has maximum so it will less adsorbed on the adsorbent surface and travel faster and will be eluded first.

has minimum value. So it is more strongly adsobred and less soluble in mobile phase.

Practice this on the real CBT interface

Solve this JEE Main question (and the rest of the Surface Chemistry chapter) on PrepSharp's TCS iON-style CBT player — with timer, bookmarks and session analytics.

Solve interactively →

About this question

This is a previous-year question from JEE Main 2022, covering the Surface Chemistry chapter of Chemistry. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.