JIPMER Jipmer Medical Solved Paper-2005

  • question_answer
    \[C{{H}_{3}}C{{H}_{2}}C\equiv CH\xrightarrow{R}\]butanone-2. R is:

    A)  \[H{{g}^{++}}\text{/}dil.\,\,{{H}_{2}}S{{O}_{4}}\]

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

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

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

    Correct Answer: A

    Solution :

    Alkyne change to ketone upon hydrolysis in presence of mercury salt. \[C{{H}_{3}}C{{H}_{2}}C\equiv CH\xrightarrow[H{{g}^{2+}}/{{H}_{2}}S{{O}_{4}}]{H.OH}\underset{\text{butanone-2}}{\mathop{C{{H}_{3}}C{{H}_{2}}COC{{H}_{3}}}}\,\]


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