JEE Main 2020ChemistryHaloalkanes and HaloarenesMediumMCQ

JEE Main 2020Haloalkanes and Haloarenes Question with Solution

JEE Main 2020 (07 Jan Shift 2)

Question

For the following reactions



where,


ks and ke , are respectively, the rate constants for substitution and elimination, and μ=kske , the correct option is ________

Choose an option

Show full solutionCorrect option: B
Correct answer
BμA>μB and keB>keA

Step-by-step explanation



(B) with more steric crowding forms elimination product compared to substitution

K e (B)> K e (A) μ B = K s (B) K e (A) < μ A = K s (A) K e (A)

Practice this on the real CBT interface

Solve this JEE Main question (and the rest of the Haloalkanes and Haloarenes 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 2020, covering the Haloalkanes and Haloarenes 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.