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NEET Sample Paper NEET Sample Test Paper-10

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

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

    B)  \[C{{H}_{3}}Br,\,O{{H}^{-}}\]

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

    D)  \[O{{H}^{-}}\] only

    Correct Answer: B

    Solution :

    \[C{{H}_{3}}Br+O{{H}^{-}}\xrightarrow{{}}C{{H}_{4}}OH+B{{r}^{-}}\] This reaction proceeds by \[{{S}_{N}}2\] mechanism Rate \[\alpha \] [substrate] [nucleophile] Rate \[\alpha \,[C{{H}_{3}}Br]\,[O{{H}^{-}}]\]


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