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J & K CET Engineering J and K - CET Engineering Solved Paper-2011

  • question_answer
    Which one of the following liquid pairs will exhibit a positive deviation from Raoult?s law?

    A)  \[n-\]hexane and n-heptane

    B)  ethanol and chloroform

    C)  phenol and aniline

    D)  chloroform and acetone

    Correct Answer: B

    Solution :

     In case of positive deviation from Raoult?s law \[A-B\]interactions are weaker than those between \[A-A\] or \[B-B.\]Water and ethanol, ethanol and chloroform, acetone and ethanol acetic acid and toluene etc. liquid pairs shows positive deviation from Raoult?s law.


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