NEET Sample Paper NEET Sample Test Paper-21

  • question_answer Which of the following reaction conditions are used for the conversion of ethanol to ethylene?

    A)  Conc.\[{{H}_{2}}S{{O}_{4}}/170{{\,}^{o}}C\]

    B)  Dil.\[{{H}_{2}}S{{O}_{4}}/100{{\,}^{o}}C\]

    C)  Dil.\[{{H}_{2}}S{{O}_{4}}/140{{\,}^{o}}C\]

    D)  Conc.\[{{H}_{2}}S{{O}_{4}}/70{{\,}^{o}}C\]   

    Correct Answer: A

    Solution :

    Dehydration of alcohol at \[160{}^\circ -170{}^\circ C\]. \[C{{H}_{3}}-C{{H}_{2}}-OH+conc.{{H}_{2}}S{{O}_{4}}\xrightarrow{{{160}^{o}}-{{170}^{o}}}\] \[C{{H}_{2}}=C{{H}_{2}}+{{H}_{2}}O\] Hence, the correct option is (a).

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