Which of the following statements are correct about azeotropic mixtures?  A. They have same composition in liquid and vapour phases.B. They can be separated by fractional distillation.C. They are formed at a specific composition.D. Solutions which show positive deviation from Raoult's law form maximum boiling azeotrope.E. The azeotrope of ethanol and water is formed by 80% ethanol and 20% water. Choose the correct answer from the options given below: – Answer & Explanation | CUET Subject PYQ – Dubuddy

Which of the following statements are correct about azeotropic mixtures?
  A. They have same composition in liquid and vapour phases.
B. They can be separated by fractional distillation.
C. They are formed at a specific composition.
D. Solutions which show positive deviation from Raoult's law form maximum boiling azeotrope.
E. The azeotrope of ethanol and water is formed by 80% ethanol and 20% water.

 Choose the correct answer from the options given below:

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Shift 27/05/2023 3:30 PM - 6:30 PM

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A
A, D and E only
B
A and B only
C
A and C only
D
A, B and E only
Correct answer

Correct Answer

A and C only
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Detailed Explanation

Azeotropes are the binary mixtures of solution that have the same composition in liquid and vapour
phase and that have constant boiling points. A minimum-boiling azeotrope is formed by solution showing a large positive deviation from Raoult's law at specific composition.
Example: An ethanol-water mixture containing approximately 95% ethanol by volume.

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