AMU Medical AMU Solved Paper-2012

  • question_answer
    Reaction of propene with diborane followed alkaline hydrolysis in the presence of hydrogen peroxide gives

    A)  1-propanol

    B)  2-propanol

    C)  1, 2-dihydroxypropane

    D)  n-propane

    Correct Answer: A

    Solution :

                    \[C{{H}_{3}}-CH=C{{H}_{2}}+{{(H-B{{H}_{2}})}_{2}}\xrightarrow{{}}\]             \[C{{H}_{3}}-C{{H}_{2}}-C{{H}_{2}}B{{H}_{2}}\xrightarrow{C{{H}_{3}}CH=C{{H}_{2}}}\] \[{{(C{{H}_{3}}-C{{H}_{2}}-C{{H}_{2}})}_{2}}BH\xrightarrow{C{{H}_{3}}CH=C{{H}_{2}}}\]                 \[{{(C{{H}_{3}}C{{H}_{2}}C{{H}_{2}})}_{3}}B\xrightarrow[O{{H}^{-}}]{{{H}_{2}}O,\,\,3{{H}_{2}}{{O}_{2}}}\]                 \[\underset{propan-1-ol}{\mathop{3C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}}}\,OH+B{{(OH)}_{3}}\]


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