RAJASTHAN PMT Rajasthan - PMT Solved Paper-2004

  • question_answer
    Ethyl alcohol cannot be purified more than 95% by distillation, because:

    A)  it forms H-bonds with water

    B)  it is lighter than water

    C)  it forms azeotropic solution

    D)  all the above are correct

    Correct Answer: C

    Solution :

    Ethyl alcohol cannot be purified more than \[45%\] by fractional distillation as the mixture of \[95%\]alcohol and \[5%\] water is an azetropic solution. To get absolute alcohol (100% pure alcohol) benzene is added to it and then it is distilled.


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