JEE Main 2019ChemistryGeneral Organic ChemistryMediumMCQ

JEE Main 2019General Organic Chemistry Question with Solution

JEE Main 2019 (10 Apr Shift 2)

Question

In chromatography, which of the following statements is incorrect for Rf?

Choose an option

Show full solutionCorrect option: A
Correct answer
AHigher Rf value means higher adsorption.

Step-by-step explanation

Rf or Retention factor or Retardation factor =distance moved by spotdistance moved by solvent

For low polarity compounds, lower will be adsorption and the lower the value of adsorption higher will be Rf value

Practice this on the real CBT interface

Solve this JEE Main question (and the rest of the General Organic 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 2019, covering the General Organic 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.