JEE Main & Advanced Chemistry Hydrocarbons / हाइड्रोकार्बन Question Bank Alkene

  • question_answer
    Ethylene may be obtained by dehydration of which of the following with concentrated \[{{H}_{2}}S{{O}_{4}}\] at \[160-{{170}^{o}}C\] [RPET 1999]

    A) \[{{C}_{2}}{{H}_{5}}OH\]

    B) \[C{{H}_{3}}OH\]

    C) \[C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}OH\]

    D) \[{{(C{{H}_{3}})}_{2}}CHC{{H}_{2}}OH\]

    Correct Answer: A

    Solution :

    \[C{{H}_{3}}-C{{H}_{2}}-OH\underset{160-170{}^\circ C}{\mathop{\xrightarrow{Conc.\ {{H}_{2}}S{{O}_{4}}}}}\,C{{H}_{_{2}}}=C{{H}_{2}}+{{H}_{2}}O\]


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