Manipal Medical Manipal Medical Solved Paper-2005

  • question_answer
    Ethyl alcohol is heated with cone.\[{{H}_{2}}S{{O}_{4}}\]. The product formed is:

    A)  \[C{{H}_{3}}-\overset{\begin{smallmatrix}  O \\  |\,\,| \end{smallmatrix}}{\mathop{C}}\,-O{{C}_{2}}{{H}_{5}}\]

    B)  \[{{C}_{2}}{{H}_{6}}\]

    C)  \[{{C}_{2}}{{H}_{4}}\]

    D)  \[{{C}_{2}}{{H}_{2}}\]

    Correct Answer: C

    Solution :

     Ethyl alcohol on dehydration with cone. \[{{H}_{2}}S{{O}_{4}}\]at\[170{}^\circ C,\]gives ethylene. \[C{{H}_{3}}C{{H}_{2}}OH\xrightarrow[conc.{{H}_{2}}S{{O}_{4}}]{170{}^\circ C}\underset{Ethylene}{\mathop{C{{H}_{2}}=C{{H}_{2}}}}\,+{{H}_{2}}O\]


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