RAJASTHAN PMT Rajasthan - PMT Solved Paper-2010

  • question_answer
    In the following halogen compounds, which compound undergoes fastest \[{{S}_{N}}1\] reaction?
    (i)
    (ii)
    (iii)

    A)  (i)                                          

    B)         (ii)

    C)         (iii)                                        

    D)         None of these

    Correct Answer: A

    Solution :

    The order of reactivity depends upon the stability of carbocation. Greater the stability of the carbocation faster will be the rate of reaction. Hence, the order of reactivity will be \[3{}^\circ \]alkyl halide \[>\] \[2{}^\circ \] alkyl halide \[>\]\[1{}^\circ \] alkyl halide \[>\] methyl halide.


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