RAJASTHAN PMT Rajasthan - PMT Solved Paper-1998

  • question_answer
    The most stable carbonium ion is:

    A)  \[C{{H}_{3}}-\overset{+}{\mathop{C}}\,H-{{C}_{2}}{{H}_{5}}\]

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

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

    D)                         \[C{{H}_{3}}-CH-C{{H}_{3}}\]

    Correct Answer: A

    Solution :

    Stability order of carbonium ion \[\underset{(Stability\,\propto +1effect)}{\mathop{{{3}^{o}}>{{2}^{o}}>{{1}^{o}}>C{{H}_{3}}^{o}}}\,\]


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