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Solutions — Chemistry STD 12 Science — Question

Rajasthan BoardEnglish MediumSTD 12 ScienceChemistrySolutions2 Marks
Question
What do you understand by azeotropic mixture Define minimum azeotropic mixture and give an example.
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Answer

Azeotropic Mixture: It is a liquid mixture that boils at a constant temperature and has the same composition in both the liquid and vapor phases. It cannot be separated by simple distillation.
Minimum Boiling Azeotrope: A mixture that shows a large positive deviation from Raoult's Law. Its boiling point is lower than that of either of its components.
→ Example: 95% Ethanol + 5% Water (by volume).

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