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RAJASTHAN PMT Rajasthan - PMT Solved Paper-2008

  • question_answer
    Methyl alcohol when reacted with carbon monoxide using cobalt or rhodium as catalyst, compound \[A\] is formed. On heating \[A\] with \[HI\] in the presence of red phosphorus as catalyst \[B\] is formed. Identify\[B\].

    A) \[C{{H}_{3}}COOH\]                       

    B)        \[C{{H}_{3}}\cdot CHO\]

    C)        \[C{{H}_{3}}\cdot C{{H}_{2}}\cdot I\]                     

    D)        \[C{{H}_{3}}\cdot C{{H}_{3}}\]

    Correct Answer: D

    Solution :

    \[C{{H}_{3}}OH+CO\xrightarrow{Rh\,\,catalyst}\underset{\begin{smallmatrix}  (A) \\  acetic\,\,acid \end{smallmatrix}}{\mathop{C{{H}_{3}}COOH}}\,\]                                                 \[\xrightarrow[red\,\,P]{HI+}\underset{\begin{smallmatrix}  (B) \\  ethane \end{smallmatrix}}{\mathop{C{{H}_{3}}-C{{H}_{3}}}}\,\]


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