JEE Main & Advanced Chemistry Hydrocarbons / हाइड्रोकार्बन Question Bank Alkene

  • question_answer
    The compound formed by passing ethylene gas into cold alkaline solution of \[KMn{{O}_{4}}\] is [NCERT 1974, 81; CPMT 1979, 86, 88; MP PET 1985, 95; AFMC 1998]

    A) Ethyl alcohol

    B) Acetaldehyde

    C) Acetic acid

    D) Ethylene glycol

    Correct Answer: D

    Solution :

    \[\underset{\text{Ethene}}{\mathop{C{{H}_{2}}=C{{H}_{2}}}}\,\xrightarrow{\text{Cold}\text{.alk}\text{.}\,KMn{{O}_{4}}}\underset{\text{Ethylene}\,\text{glycol}}{\mathop{\underset{OH}{\mathop{\underset{|\,\,\,\,\,\,}{\mathop{C{{H}_{2}}}}\,}}\,-\underset{OH\,}{\mathop{\underset{|\,\,\,\,\,\,\,}{\mathop{C{{H}_{2}}}}\,}}\,}}\,\]


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