Manipal Engineering Manipal Engineering Solved Paper-2008

  • question_answer
    Osmotic pressure observed when benzoic acid is dissolved in benzene is less than that expected from theoretical considerations. This is because

    A)  benzoic acid is an organic solute

    B)  benzoic acid has higher molar mass than benzene

    C)  benzoic acid gets associated in benzene

    D)  benzoic acid gets dissociated in benzene

    Correct Answer: C

    Solution :

    Benzoic acid in benzene exist as a dimer. So, number of molecules decreases and hence, osmotic pressure decreases.


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