BHU PMT BHU PMT (Mains) Solved Paper-2005

  • question_answer

    Directions : In the following question more than one of the answers given may be correct. Select the correct answer and mark it according to the code:

    The greater stability of tert-butyl carbocation over methyl carbocation can be explained on the basis of: (1) \[+I\] -effect of the methyl group (2) hyperconjugation effect of the methyl group (3) electromeric effect of the methyl group (4) \[-I\] -effect of the methyl group

    A)  1, 2 and 3 are correct

    B)  1 and 2 are correct

    C)   2 and 4 are correct

    D)  1 and 3 are correct

    Correct Answer: B

    Solution :

                     The greater stability of Cere-butyl carbocation over methyl carbocation is explained on the basis of\[+I\]effect and hyperconjugation effect of the\[C{{H}_{3}}\]groups.


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