CMC Medical CMC-Medical VELLORE Solved Paper-2014

  • question_answer
    Which of the following compounds cannot be prepared singly by the Wurtz reaction?

    A)  \[{{C}_{2}}{{H}_{6}}\]

    B)  \[{{(C{{H}_{3}})}_{2}}CHC{{H}_{3}}\]

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

    D)  All of the above can be prepared             

    Correct Answer: B

    Solution :

              If two different alkyl halides (\[{{R}_{1}}-X\]and\[{{R}_{2}}-X\]) are used, a mixture of three alkanes is obtained which is difficult to separate.


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