BCECE Engineering BCECE Engineering Solved Paper-2006

  • question_answer
    Formation of diethyl ether from ethanol is  based on a:

    A)  dehydration reaction

    B)  dehydrogenation reaction

    C)  hydrogenation reaction

    D)  homolytic fission reaction

    Correct Answer: A

    Solution :

    Ethanol, on dehydration in presence of conc. \[{{H}_{2}}S{{O}_{4}}140{{\,}^{o}}C,\]gives diethyl ether. \[2{{C}_{2}}{{H}_{5}}OH\xrightarrow[140{{\,}^{o}}C]{conc.{{H}_{2}}S{{O}_{4}}}\] \[\underset{\text{diethyl}\,\text{ether}}{\mathop{{{C}_{2}}{{H}_{5}}-O-{{C}_{2}}{{H}_{5}}}}\,+{{H}_{2}}O\]


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