JEE Main & Advanced Chemistry GOC Question Bank Organic reactions and their mechanism

  • question_answer Dehydrohalogenation of an alkyl halide is a/an [MH CET 2004]

    A) Nucleophilic substitution reaction

    B) Elimination reaction

    C) Both nucleophilic substitution and elimination reaction

    D) Rearrangement

    Correct Answer: B

    Solution :

    Dehydrohalogenation of an alkyl halide on presence of alcoholic potash is an example of elimination reaction. \[R-C{{H}_{2}}C{{H}_{2}}-Cl+\underset{\text{alc}\text{.}}{\mathop{KOH}}\,\xrightarrow{\Delta }\]\[RCH=C{{H}_{2}}+KCl+{{H}_{2}}O\]


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