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NEET Chemistry Solutions / विलयन Question Bank Self Evaluation Test - Solutions

  • question_answer
    12 g of urea is dissolved in 1 litre of water and 68.4 g of sucrose is dissolved in 1 litre of water. The lowering of vapour pressure of first case is

    A) equal to second

    B) greater than second

    C) less than second

    D) double that of second

    Correct Answer: A

    Solution :

    [a] Moles of urea \[=\frac{12}{60}=0.2\] Moles of sucrose \[=\frac{68.4}{342}=0.2\] Both are non electrolyte hence lowering of V.P. will be same.


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