Uttarakhand PMT Uttarakhand PMT Solved Paper-2006

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

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

    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. \[C{{H}_{3}}C{{H}_{2}}C\equiv CH\xrightarrow[H{{g}^{2+}}/{{H}_{2}}S{{O}_{4}}]{H.OH}\underset{butanone-2}{\mathop{C{{H}_{3}}C{{H}_{2}}COC{{H}_{3}}}}\,\]


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