JEE Main 2025 — Haloalkanes And Haloarenes Question with Solution
From: JEE Main 2025 (Online) 24th January Morning Shift
Question
Following are the four molecules "P", "Q", "R" and "S".
Which one among the four molecules will react with at the fastest rate?
This question includes a diagram. The text above accompanies the figure.
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Show full solutionCorrect option: A
Step-by-step explanation
Addition of to alkene follows electrophilic addition mechanism. In the rate determining step a carbocation intermediate is formed. Among P, Q, R & S compound Q will form most stable carbocation intermediate since it is resonance stabilized.
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This is a previous-year question from JEE Main 2025, 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.