JEE Main & Advanced Chemistry Aldehydes, Ketones Question Bank Preparation

  • question_answer
    \[C{{H}_{3}}-C{{H}_{2}}-C\equiv CH\underset{{{H}_{2}}O}{\mathop{\xrightarrow{R}}}\,\]Butanone, R is               [BHU 2003]

    A)                 \[H{{g}^{++}}\]

    B)                 \[KMn{{O}_{4}}\]

    C)                 \[KCl{{O}_{3}}\]               

    D)                 \[{{K}_{2}}C{{r}_{2}}{{O}_{7}}\]

    Correct Answer: A

    Solution :

               It is hydration of alkynes.                 \[C{{H}_{3}}-C{{H}_{2}}-C\equiv CH\underset{{{H}_{2}}O}{\mathop{\xrightarrow{H{{g}^{++}}}}}\,\underset{\text{Butanone}}{\mathop{C{{H}_{3}}-C{{H}_{2}}-\overset{O}{\mathop{\overset{||}{\mathop{C}}\,}}\,-C{{H}_{3}}}}\,\]


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