JEE Main & Advanced Chemistry Aldehydes, Ketones Question Bank Critical Thinking Aldehydes,

  • question_answer
    On vigorous oxidation by permanganate solution \[{{(C{{H}_{3}})}_{2}}C=CH-C{{H}_{2}}C{{H}_{2}}C{{H}_{3}}\] gives        [AIEEE 2002]

    A)       \[C{{H}_{3}}\underset{C{{H}_{3}}}{\overset{OH}{\mathop{\underset{|\,\,\,\,\,\,\,}{\overset{|\,\,\,\,\,\,\,\,}{\mathop{-C-\,\,\,}}}\,}}}\,\overset{OH\,\,}{\mathop{\overset{|\,\,\,\,\,\,\,\,\,\,\,\,}{\mathop{CH-}}\,}}\,C{{H}_{2}}C{{H}_{3}}\]

    B)                 \[\begin{matrix}    C{{H}_{3}} & {} & {}  \\    {} & > & CHC{{O}_{2}}H+C{{H}_{3}}COOH  \\    C{{H}_{3}} & {} & {}  \\ \end{matrix}\]

    C)                 \[\begin{matrix}    C{{H}_{3}} & {} & {}  \\    {} & > & CHOH+C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}OH  \\    C{{H}_{3}} & {} & {}  \\ \end{matrix}\]

    D)                 \[\begin{matrix}    C{{H}_{3}} & {} & {}  \\    {} & > & C=O+C{{H}_{3}}C{{H}_{2}}COOH  \\    C{{H}_{3}} & {} & {}  \\ \end{matrix}\]

    Correct Answer: D

    Solution :

               \[\begin{matrix}    C{{H}_{3}}  \\    C{{H}_{3}}  \\ \end{matrix}>C=CHC{{H}_{2}}C{{H}_{2}}C{{H}_{3}}\xrightarrow{KMn{{O}_{4}}}\] \[\begin{matrix}    C{{H}_{3}}  \\    C{{H}_{3}}  \\ \end{matrix}>C=O+HOOCC{{H}_{2}}C{{H}_{3}}\]


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