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CET Karnataka Engineering CET - Karnataka Engineering Solved Paper-2001

  • question_answer
    On heating ethanol with excess of cone. \[{{\text{H}}_{\text{2}}}\text{S}{{\text{O}}_{\text{4}}}\]at \[\text{170}{{\,}^{\text{o}}}\text{C,}\] the product obtained is:

    A)  ethene                               

    B)  ethoxy ethane

    C)  ethyne                               

    D)  ethane

    Correct Answer: A

    Solution :

    \[\underset{\text{Ethanol}}{\mathop{C{{H}_{3}}C{{H}_{2}}OH}}\,\xrightarrow[170{{\,}^{o}}C]{Con.{{H}_{2}}S{{O}_{4}}}\underset{\begin{smallmatrix}  \text{Ethylene} \\  \text{(Ethene)} \end{smallmatrix}}{\mathop{C{{H}_{2}}=C{{H}_{2}}}}\,\]


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