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An azeotropic solution of two liquids ha...

An azeotropic solution of two liquids 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.

Text Solution

Verified by Experts

The correct Answer is:
C
Azeotropic mixture are also known as constant boiling mixtures. They are liquid mixtures which boil over without any change in the composition. Such mixtures cannot be separated into components by fractional distillation. They are of two types: maximum boiling azeotropes and minimum boiling azeotropes.
Maximum boiling azeoutropes are formed by solutions having negative deviations. Boiling point is maximum. For example,
Water and HCl
Water and nitric acid
Chloride form and acetone
Acetic acid and pyridine
Minimum boiling azeotropes are formed by solutions having deviations. Boiling point is minimum. For example
Acetic acid and toluence
Pyridince and water
Ethanol and benzene
Water and ethanol
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The solution which boil at constant temperature like a pure liquid and possess same composition in liquid as well as vapour state are called azeotropes. The components of azetropes cannot be separated by fractional distillation. Only non-ideal solutions form azeotropes. Solutions with negative deviation form maximum boiling azeotrope and the solutions with positive deviation form minimum boiling azeotrope. The boiling point of an azeotrope is never equal to the boiling points of any of the components of the azeotrope. Answer the following question: The azeotropic solutions of two miscible liquids The azeotropic mixture of water and HCl boils at 108.5^(@)C . This solution is

The solution which boil at constant temperature like a pure liquid and possess same composition in liquid as well as vapour state are called azeotropes. The components of azetropes cannot be separated by fractional distillation. Only non-ideal solutions form azeotropes. Solutions with negative deviation form maximum boiling azeotrope and the solutions with positive deviation form minimum boiling azeotrope. The boiling point of an azeotrope is never equal to the boiling points of any of the components of the azeotrope. Answer the following question: The azeotropic solutions of two miscible liquids Which among the following combinations is a maximum boiling azeotrope?

The solution which boil at constant temperature like a pure liquid and possess same composition in liquid as well as vapour state are called azeotropes. The components of azetropes cannot be separated by fractional distillation. Only non-ideal solutions form azeotropes. Solutions with negative deviation form maximum boiling azeotrope and the solutions with positive deviation form minimum boiling azeotrope. The boiling point of an azeotrope is never equal to the boiling points of any of the components of the azeotrope. Answer the following question: The azeotropic solutions of two miscible liquids Solutions which distill without any change in composition or temperature are called