BVP Medical BVP Medical Solved Paper-2007

  • question_answer
    Methane and ethane both can be prepared in one step by which of the following compound?

    A)  \[{{C}_{2}}{{H}_{4}}\]                                   

    B)  \[C{{H}_{3}}OH\]

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

    D)  \[C{{H}_{3}}C{{H}_{2}}OH\]

    Correct Answer: C

    Solution :

                      \[\underset{\begin{smallmatrix}  methyl \\  bromide \end{smallmatrix}}{\mathop{C{{H}_{3}}Br}}\,+{{H}_{2}}\xrightarrow{LiAl{{H}_{4}}}\underset{methane}{\mathop{C{{H}_{4}}}}\,+HBr\] \[\underset{\begin{smallmatrix}  methyl \\  bromide \end{smallmatrix}}{\mathop{2C{{H}_{3}}Br}}\,+Na\xrightarrow{{}}\underset{ethane}{\mathop{{{C}_{2}}{{H}_{6}}}}\,+2NaBr\]


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