BHU PMT BHU PMT Solved Paper-2004

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

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

    B) \[CH{{  }_{3}}OH\]

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

    D) \[C{{H}_{3}}C{{H}_{2}}OH\]

    Correct Answer: D

    Solution :

    \[\underset{Methyl\,bromide}{\mathop{C{{H}_{3}}Br+{{H}_{2}}}}\,\xrightarrow{LiA{{H}_{4}}}\underset{Methane}{\mathop{C{{H}_{4}}}}\,+HBr\] \[\underset{Methyl\,bromide}{\mathop{2C{{H}_{3}}Br+Na}}\,\xrightarrow{{}}\underset{Ethane}{\mathop{{{C}_{2}}{{H}_{6}}}}\,+2NaBr\]


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