JCECE Medical JCECE Medical Solved Paper-2012

  • question_answer
    Which amongst the following is the most stable carbocation?

    A)  \[C{{H}_{3}}-\underset{C{{H}_{3}}}{\mathop{\underset{|}{\overset{+}{\mathop{C}}}\,}}\,-H\]

    B)  \[C{{H}_{3}}-\underset{C{{H}_{3}}}{\overset{C{{H}_{3}}}{\mathop{\underset{|}{\overset{|}{\mathop{{{C}^{+}}}}}\,}}}\,\]

    C)  \[\overset{+}{\mathop{C}}\,{{H}_{3}}\]

    D)  \[C{{H}_{3}}\overset{+}{\mathop{C}}\,{{H}_{2}}\]

    Correct Answer: D

    Solution :

     The most stable carbocation is t-alkyl carbocation because the order of stability of alkyl carbocation is \[t-alkyl>s-alkyl>p-alkyl>CH_{3}^{+}\] carbocation. This stability is due to the hyperconjugation.


You need to login to perform this action.
You will be redirected in 3 sec spinner