If a mixture of A and B boils at a temperature lower than the boiling point of either of the components, what kind of deviation does the mixture show?

If a mixture of A and B boils at a temperature lower than the boiling point of either of the components, what kind of deviation does the mixture show? Correct Answer Positive deviation from Raoult’s law

Deviation is always exhibited by non-solutions. Non- ideal solutions do not obey Raoult’s behavior. This is because ΔHmix, ΔVmix ≠ 0. The cause for this is the intermolecular attractions. In this case, molecular attraction between A – B is weaker than that of A – A and B – B. Hence the easier it is to break the bonds and boil faster at a lower temperature than that of either of A and B.
Bissoy MCQ

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