JEE Main 2023 — General Organic Chemistry Question with Solution
JEE Main 2023 (11 Apr Shift 2)
Question
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Show full solutionCorrect answer: 4
Step-by-step explanation
3-chloro-1-butene undergo protonation and gives secondary carbocation according Markonikov's addition in the first step. In the second step the lone pair on the chlorine attacks the positively charged carbon to form cyclic intermediate. Now the nucleophile in the reaction i.e., chloride ion attacks cyclic intermediate and forms two structural products as shown below.
2,2-dichlorobutane exit in single isomer only, but 2,3-dichlorobutane exhibits three isomers.
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This is a previous-year question from JEE Main 2023, 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.