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Define azeotropes. What type of azeotrop...

Define azeotropes. What type of azeotrope is formed by positive deviation from Raoult's law ? Give an example.

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Mixtures of liquids having the same composition in liquid and vapour phase and boiling at a constant temperature are called azeotropes. It is not possible to separate the components of an azeotrope by fractional distillation. The solutions which show positive deviation from Raoult.s law form minimum boiling azeotropes. Ethanol-water mixture is an example of this type of azeotrope.
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Knowledge Check

  • The mixture which shows positive deviation from Raoult's law is

    A
    ethanol + acetone
    B
    benzene + toluene
    C
    acetone + chloroform
    D
    chloroethane + bromoethane

  • The mixture which shows positive deviation from Raoult's law is :

    A
    Benzene + Toluene
    B
    Acetone +Chloroform
    C
    Chloroethane + Bromoethane
    D
    Ethanol + Acetone

  • Which of the following shows positive deviation from Raoult's law ?

    A
    `C_(6)H_(6) and C_(6)H_(5)CH_(3)`
    B
    `C_(^)H_(6) and C Cl_(4)`
    C
    `ChCl_(3) and C_(2)H_(3)OH`
    D
    `CHCl_(3) and CH_(3)COCH_(3)`

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    What is meant by positive and negative deviation from Raoult's law ?

    Which solution will show positive deviation from Raoult's law?

    The mixture which shows positive deviation from Raoult's law is:

    Define Azeotrope mixture

    Which of the following does not show positive deviation from Raoult's law?

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