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J & K CET Medical J & K - CET Medical Solved Paper-2006

  • question_answer
    \[C{{H}_{3}}Br+\overline{O}H\xrightarrow{{}}C{{H}_{3}}OH+B{{r}^{-}}\]reaction proceeds by \[{{S}_{N}}2-\]mechanism. Its rate is dependent on the concentration of:

    A) \[C{{H}_{3}}Br,\overline{O}H\]

    B) \[C{{H}_{3}}Br\]only

    C)  OH only                              

    D) \[C{{H}_{3}}Br,C{{H}_{3}}OH\]

    Correct Answer: A

    Solution :

                                    \[C{{H}_{3}}Br+O{{H}^{-}}\xrightarrow{{}}C{{H}_{3}}OH+B{{r}^{-}}\] This reaction proceeds by S^ 2-mechanism Rate \[\propto \] [substrate] [nucleophile] \[Rate\propto [C{{H}_{3}}Br]\text{ }[O{{H}^{-}}]\]                


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