JEE Main 2023ChemistryHaloalkanes and HaloarenesEasyMCQ

JEE Main 2023 — Haloalkanes and Haloarenes Question with Solution

JEE Main 2023 (30 Jan Shift 2)

Question

Decreasing order towards SN1 reaction for the following compounds is:

 

Choose an option

Show full solutionCorrect option: C
Correct answer
Cb > d > c > a

Step-by-step explanation

The relative reactivity of alkyl halides in the SN1 reaction depends on the stability of carbocation. Electron-withdrawing groups decrease the stability and electron-releasing groups increase the stability of carbocations. -NO2 group is an electron-withdrawing group by -M effect. -OMe is electron-releasing groups by +M effect. Hence, the overall order is 

∴ Reactivity order (b) > (d) > (c) > (a)

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About this question

This is a previous-year question from JEE Main 2023, 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.