J & K CET Medical J & K - CET Medical Solved Paper-2003

  • question_answer
    Reaction of r-butylbromide with sodium methoxide produces:

    A)  isobutene

    B)  isobutylene

    C)  sodium-t-butoxide

    D)  t-butylmethylether

    Correct Answer: B

    Solution :

                    \[\underset{t-butyl-bromide}{\mathop{C{{H}_{3}}-\underset{\begin{smallmatrix}  | \\  C{{H}_{3}} \end{smallmatrix}}{\overset{\begin{smallmatrix}  C{{H}_{3}} \\  | \end{smallmatrix}}{\mathop{C}}}\,-Br}}\,+\underset{\begin{smallmatrix}  sodium \\  methoxide \end{smallmatrix}}{\mathop{C{{H}_{3}}ONa}}\,\to \underset{\begin{smallmatrix}  2-methyl\text{ }propene \\  \,\,\,\,\,\,(isobutylene) \end{smallmatrix}}{\mathop{C{{H}_{3}}-\overset{\begin{smallmatrix}  C{{H}_{3}} \\  | \end{smallmatrix}}{\mathop{C}}\,=C{{H}_{2}}}}\,\]\[+\underset{Methanol}{\mathop{C{{H}_{3}}OH}}\,+NaBr\]


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