JEE Main 2020 — Haloalkanes And Haloarenes Question with Solution
From: JEE Main 2020 (Online) 9th January Morning Slot
Question
Which of these will produce the highest yield
in Friedel Crafts reaction?
Choose an option
Show full solutionCorrect option: A
Correct answer
A
Step-by-step explanation
Friedel-Crafts reaction is an electrophilic substitution reaction. In general, the rate of these reactions is highest when benzene have some electron releasing groups, (i.e. ) attached to the nucleus.
Lewis acid (anhydrous ) used in these reactions form an adduct with the ' ' or groups and becomes ineffective.
withdrawing (deactivating) group, but among the given options, it is most reactive towards Friedel-Crafts reaction.
Lewis acid (anhydrous ) used in these reactions form an adduct with the ' ' or groups and becomes ineffective.
withdrawing (deactivating) group, but among the given options, it is most reactive towards Friedel-Crafts reaction.
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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.