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Question
If two liquids A and B form minimum boiling azeotrope at some specific composition then ______.
Options
A–B interactions are stronger than those between A–A or B–B.
vapour pressure of solution increases because more number of molecules of liquids A and B can escape from the solution.
vapour pressure of solution decreases because less number of molecules of only one of the liquids escape from the solution.
A–B interactions are weaker than those between A–A or B–B.
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Solution
If two liquids A and B form minimum boiling azeotrope at some specific composition then A–B interactions are weaker than those between A–A or B–B.
Explanation:
The solutions which show large positive deviation from Rault’s law form n = minimum boiling azeotrope at some specific composition. In the case of positive deviation from Rault’s law, A-B interactions are weaker than those between A-A or B-B.
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