J & K CET Engineering J and K - CET Engineering Solved Paper-2004

  • question_answer
    Which of the following is the most stable cation?

    A)  \[{{F}_{3}}C-CH_{2}^{\oplus }\]

    B)  \[{{(C{{H}_{3}})}_{2}}C{{H}^{\oplus }}\]

    C)  \[CH_{3}^{\oplus }\]

    D)  \[CF_{3}^{\oplus }\]

    Correct Answer: B

    Solution :

     Due to the presence of three methyl group positive inductive effect increases and the stability of carbocation also increases. The stability order of carbocation is Tertiary > Secondary > Primary


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