JEE Main & Advanced Sample Paper JEE Main Sample Paper-5

  • question_answer
    Identify the correct product of following reaction.





    Correct Answer: C

    Solution :

     Idea This problem includes conceptual mixing of pinacol-pinacolone rearrangement which involves rearrangement of carbocation. While solving problem, students are advised to complete the reaction by formation of more stable carbocation followed by migration of more nucleophilic group to produce the correct product. Pinacol-pinacolone-rearrangement The conversion of diol to a-hydroxy ketone on reaction  with  protic  acid  is  known  as pinacol-pinacolone  rearrangement  and  this reaction is believed to proceed as TEST Edge In JEE Main, problems related to concept of semipinacol-pinacolone rearrangement are also asked. So, students are advised to go through rearrangement of carbocation.    Sometimes    free    radical rearrangement reaction are also asked so students should go through these topics.

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