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JEE Main & Advanced Chemistry Haloalkanes and Haloarenes / हैलोएल्केन तथा हैलोएरीन्स Question Bank Preparation of Halogen containing compounds

  • question_answer
    Which one of the  following processes does not occur during formation of \[CHC{{l}_{3}}\] from \[{{C}_{2}}{{H}_{5}}OH\] and bleaching powder [DPMT 1984]

    A) Hydrolysis

    B) Oxidation

    C) Reduction

    D) Chlorination

    Correct Answer: C

    Solution :

               \[CaOC{{l}_{2}}+{{H}_{2}}O\xrightarrow{\text{Hydrolysis}}Ca{{(OH)}_{2}}+C{{l}_{2}}\]            \[C{{H}_{3}}C{{H}_{2}}OH+C{{l}_{2}}\xrightarrow{\text{Oxidation}}C{{H}_{3}}CHO+2HCl\]            \[C{{H}_{3}}CHO+3C{{l}_{2}}\xrightarrow{\text{Chlorination}}CC{{l}_{3}}CHO+3HCl\] \[\begin{matrix}    CC{{l}_{3}}CHO  \\    CC{{l}_{3}}CHO  \\ \end{matrix}+Ca<\begin{matrix}    OH  \\    OH  \\ \end{matrix}\to \underset{\text{Chloroform}}{\mathop{2CHC{{l}_{3}}}}\,\underset{\text{Calcium  fomate}}{\mathop{+\begin{matrix}    HCOO  \\    HCOO  \\ \end{matrix}>Ca}}\,\]


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