MGIMS WARDHA MGIMS WARDHA Solved Paper-2005

  • question_answer
    Compound reacting with alkaline\[KMn{{O}_{4}}\]:

    A) \[C{{H}_{3}}-\underset{\begin{smallmatrix}  | \\  C{{H}_{3}} \end{smallmatrix}}{\overset{\begin{smallmatrix}  OH \\  | \end{smallmatrix}}{\mathop{C}}}\,-C{{H}_{3}}\]

    B) \[C{{H}_{3}}-\overset{\begin{smallmatrix}  OH \\  | \end{smallmatrix}}{\mathop{CH}}\,-C{{H}_{3}}\]

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

    D)  none of the above

    Correct Answer: B

    Solution :

    Only\[1{}^\circ \]alochol and\[2{}^\circ \]alcohol react with alkaline\[KMn{{O}_{4}}\]. \[\underset{Alcohol}{\mathop{C{{H}_{3}}.\overset{\begin{smallmatrix}  OH \\  | \end{smallmatrix}}{\mathop{CH}}\,.C{{H}_{3}}}}\,\xrightarrow[{}]{KMn{{O}_{4}}}\underset{Ketone}{\mathop{C{{H}_{3}}.\overset{\begin{smallmatrix}  O \\  || \end{smallmatrix}}{\mathop{C}}\,.C{{H}_{3}}}}\,\]                                                 \[\xrightarrow[{}]{[O]}\underset{Ketone}{\mathop{C{{H}_{3}}COOH}}\,\]


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