AIIMS AIIMS Solved Paper-2007

  • question_answer
    What is the product obtained when chlorine reacts with ethyl alcohol in the presence of \[NaOH\]?

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

    B)  \[{{C}_{2}}{{H}_{5}}Cl\]

    C)         \[CC{{l}_{3}}.CHO\]    

    D)         \[CHC{{l}_{3}}\]

    Correct Answer: D

    Solution :

    When chlorine reacts with ethyl alcohol in the presence of \[NaOH\], chloroform is obtained as a final product. \[C{{H}_{3}}C{{H}_{2}}OH+C{{l}_{2}}\xrightarrow{Oxidation}\]                                             \[\underset{acetaldehyde}{\mathop{C{{H}_{3}}CHO}}\,+2HCl\] \[C{{H}_{3}}CHO+3C{{l}_{2}}\xrightarrow{Chlorination}\]                                             \[\underset{chloral}{\mathop{CC{{l}_{3}}CHO}}\,+3HCl\] \[CC{{l}_{3}}CHO+NaOH\xrightarrow{Hydrolysis}\]                                               \[\underset{chloroform}{\mathop{CHC{{l}_{3}}}}\,+HCOONa\]


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