If two liquids A and B form minimum boiling azeotrope at some spe… - Vidyadip

MCQ

If two liquids $A$ and $B$ form minimum boiling azeotrope at some specific composition then $......$

A
$A–B$ interactions are stronger than those between $A–A$ or $B–B.$
B
vapour pressure of solution increases because more number of molecules of liquids $A$ and $B$ can escape from the solution.
C
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 $B–B.$

✓

Answer

Correct option: D.

$A–B$ interactions are weaker than those between $A–A$ or $B–B.$

The solutions which show large positive deviation from Rault's law form minimum boiling azeotrope at some specific composition.
In 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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