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An azeotropic solution of two liquids ha...

An azeotropic solution of two liquids has a boiling point lower than either of them when it:

A

Shows negative deviation from Raoult's law

B

Shows no deviation from Raoult's law

C

Shows positive deviation from Raoult's law

D

Is saturated

Text Solution

Verified by Experts

The correct Answer is:
C
Lower the B.P., higher will be the V.P. The V.P. of the mixture is greater than either of the two liquids.
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A: An azeotropic solution of two liquids has boiling point lower than either of them. R: Solution shows +ve deviation from ideal behaviour.

An ideal solution of two liquids is a solution in which each component obeys Raoult's which states that the vapour pressure of any component in the solution depends on the mole fraction of that component in the solution and the vapour pressure of that component in the pure state. However, there are many solution which do not obey Raoult's law. In other words, they show deviations from ideal behaviour which may be positive or negative. However, in either case, corresponding to a particular composition, they form a constant boiling mixtures called azeotropes. An azetropic solution of two liquids has boiling point lower than either of the two liquids when it

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  • An azeotropic solution of two liquid has boiling point lower than either of them when it

    A
    Shows negative deviation from Raoult's law.
    B
    Shows no deviation from Raoult's law.
    C
    Shows positive deviation from Raoult's law.
    D
    Is saturated.

  • An azeotropic solution of two liquids has a boiling point higher than either of the two when it

    A
    is saturated
    B
    shows no deviation from Raoult's law
    C
    shows a negative deviation from Raoult's law
    D
    shows a positive deviation from Raoult's law

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

    A
    shows a negative devaiation from Raoultas' law
    B
    shows no deviation from Raoults' law
    C
    shows positive deviation from Raoults' law
    D
    is saturated

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    Which of the following azeotropic solutions has the boiling point less than boiling point of the constituents A and B ?

    A solution of two liquids boils at a temperature more than the boiling point of either of them. Hence, the binary solution shows

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