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BVP Medical BVP Medical Solved Paper-2006

  • question_answer
    \[RCH=C{{H}_{2}}\xrightarrow[{{C}_{2}}{{H}_{5}}OH]{Na/N{{H}_{3}}_{(l)}}RC{{H}_{2}}C{{H}_{3}}\], This reaction is called as:

    A)  Fischer-Siper reaction

    B)  Clemmensen reaction

    C)  Birch reduction         

    D)  Amdt-Eistert synthesis

    Correct Answer: C

    Solution :

                    \[\underset{Terninal\,alkene}{\mathop{R-CH=C{{H}_{2}}}}\,\xrightarrow[ethanol]{Na/liq\,N{{H}_{3}}}\]\[\underset{Alkane}{\mathop{R-C{{H}_{2}}-C{{H}_{3}}}}\,\] A terminal olefinic bond may be reduced by sodium in-liquid NH3 in the presence of ethanol to give alkane. This reaction is known as Birch reduction.


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