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

  • question_answer
    Which of the following will give yellow precipitate with \[{{I}_{2}}/NaOH\]                                           [IIT 1997]

    A)                 \[IC{{H}_{2}}COC{{H}_{2}}C{{H}_{3}}\]  

    B)                 \[C{{H}_{3}}COOCOC{{H}_{3}}\]

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

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

    Correct Answer: A

    Solution :

     \[IC{{H}_{2}}COC{{H}_{2}}C{{H}_{3}}\xrightarrow{{{I}_{2}}/NaOH}CH{{I}_{3}}+\]              \[C{{H}_{3}}C{{H}_{2}}COONa\]                    \[C{{H}_{3}}-\underset{OH}{\mathop{\underset{|\,\,\,\,\,}{\mathop{CH}}\,}}\,-C{{H}_{2}}C{{H}_{3}}\underset{NaOH}{\mathop{\xrightarrow{{{I}_{2}}}}}\,\]\[C{{H}_{3}}C{{H}_{2}}COONa+CH{{I}_{3}}\]


You need to login to perform this action.
You will be redirected in 3 sec spinner