JEE Main & Advanced Chemistry Haloalkanes and Haloarenes / हैलोएल्केन तथा हैलोएरीन्स Question Bank Critical Thinking Haloalkanes

  • question_answer
    Wurtz reaction of methyl iodide yields an organic compound X. Which one of the following reactions also yields X [EAMCET 2003]

    A) \[{{C}_{2}}{{H}_{5}}Cl+Mg\xrightarrow{\text{dryethe}r}\]

    B) \[{{C}_{2}}{{H}_{5}}Cl+LiAl{{H}_{4}}\xrightarrow{{}}\]

    C) \[{{C}_{2}}{{H}_{5}}Cl+{{C}_{2}}{{H}_{5}}ONa\xrightarrow{{}}\]

    D)  \[CHC{{l}_{3}}\underset{\Delta }{\mathop{\xrightarrow{Ag\ \text{powder}}}}\,\]

    Correct Answer: B

    Solution :

    Wurtz reaction gives ethane \[2C{{H}_{3}}I+2Na\underset{\text{ether}}{\mathop{\xrightarrow{\text{dry}}}}\,{{C}_{2}}{{H}_{6}}+2NaI\] Similarly \[{{C}_{2}}{{H}_{5}}Cl\] reduced by \[LiAl{{H}_{4}}\] to give ethane \[{{C}_{2}}{{H}_{5}}Cl+2H\xrightarrow{LiAl{{H}_{4}}}{{C}_{2}}{{H}_{6}}+HCl\]


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