Chhattisgarh PMT Chhattisgarh PMT Solved Paper-2007

  • question_answer
    The compound added to prevent chloroform to form phosgene gas (poisonous gas) is

    A)  \[C{{H}_{3}}COOH\]      

    B)  \[C{{H}_{3}}OH\]

    C)  \[C{{H}_{3}}COC{{H}_{3}}\]      

    D)  \[{{C}_{2}}{{H}_{5}}OH\]

    Correct Answer: D

    Solution :

    Ethyl alcohol reacts with phosgene gives diethyl carbonate which is not poisonous. \[\begin{align}   & \underset{ethyl\,\,alcohol}{\mathop{{{C}_{2}}{{H}_{5}}-OH}}\,+\underset{phosgene}{\mathop{Cl-\overset{O}{\mathop{\overset{||}{\mathop{C}}\,}}\,-Cl}}\,+HO-C{{H}_{2}}-C{{H}_{3}} \\  & \downarrow -2HCl \\  & \underset{diethyl\,\,carbonate}{\mathop{{{C}_{2}}{{H}_{5}}O-\overset{O}{\mathop{\overset{||}{\mathop{C}}\,}}\,-O-{{C}_{2}}{{H}_{5}}}}\, \\ \end{align}\]


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