allerySolutions showing large **positive deviation** from Raoult's law form which type of azeotrope?
AAlways form ideal mixtures
BCannot form an azeotrope
CMinimum boiling azeotrope
DMaximum boiling azeotrope
Answer & Solution
Correct answer: C. Minimum boiling azeotrope
Large positive deviation
→ vapour pressure higher than predicted
→ **lower boiling point at azeotropic composition
→ minimum boiling azeotrope** (e.g., ethanol–water at 95% ethanol).
Large negative deviation
→ maximum boiling azeotrope (e.g., HNO₃–water).
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