NEET Sample Paper NEET Sample Test Paper-85

  • question_answer
    Ethanol can be prepared more easily by which reaction?
    (i) \[C{{H}_{3}}C{{H}_{2}}Br+{{H}_{2}}O\xrightarrow{{}}C{{H}_{3}}C{{H}_{2}}OH\]
    (ii) \[C{{H}_{3}}C{{H}_{2}}Br+A{{g}_{2}}O\](in boiling water)\[\xrightarrow{{}}C{{H}_{3}}C{{H}_{2}}OH\]

    A) by (i) reaction

    B) by (ii) reaction

    C) Both reactions proceed at same rate

    D) by none

    Correct Answer: B

    Solution :

    [b] Heavy metal ions, particularly \[A{{g}^{+}},\] catalyse \[{{S}_{N}}1\] reaction because of presence of empty orbital. \[C{{H}_{3}}C{{H}_{2}}Br+A{{g}^{+}}\] \[{{[C{{H}_{3}}C{{H}_{2}}....Br....Ag]}^{+}}\] \[\xrightarrow[(-AgBr)]{slow}c{{h}_{3}}ch_{2}^{+}\xrightarrow[From\,\,{{H}_{2}}O]{O{{H}^{-}}}C{{H}_{3}}C{{H}_{2}}OH\]


You need to login to perform this action.
You will be redirected in 3 sec spinner