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BCECE Engineering BCECE Engineering Solved Paper-2003

  • question_answer
    An azeotropic mixture of two liquids has boiling point lower than either of them, when it:                    

    A) shows a negative deviation from Raoults law

    B) shows no deviation from Raoults law

    C) shows positive deviation from Raoults law

    D) is saturated

    Correct Answer: C

    Solution :

    Key Idea: (i) Azeotropic mixtures having boiling point less than either of the two pure components show positive deviation from Raoults law. (ii) Azeotropic mixtures having boiling point more than either of two pure components show negative deviation from Raoults law. \[\therefore \] (c) is correct answer.


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