RAJASTHAN ­ PET Rajasthan PET Solved Paper-2005

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

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

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

    C)  \[{{(C{{H}_{3}})}_{3}}{{C}^{+}}\]

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

    Correct Answer: C

    Solution :

     Tertiary carbonium ion is the most stable due to \[+I\] effect. Hence, trimethyl carbonium ion \[{{(C{{H}_{3}})}_{3}}-{{C}^{+}}\]is the most stable.


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