Azeotropes are binary mixtures that:
AAre immiscible
BHave the same composition in the liquid and vapour phases and boil at a constant temperature
CCan always be separated by fractional distillation
DBoil over a range of temperatures
Answer & Solution
Correct answer: B. Have the same composition in the liquid and vapour phases and boil at a constant temperature
Azeotropes have **identical liquid- and vapour-phase compositions** at a specific point — fractional distillation can't separate them past this composition.
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