Assertion : Azeotropic mixtures are formed on | vedclass

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(A) Azeotropic mixtures are constant boiling mixtures that distill without change in composition. They are formed only by non-$ideal$ solutions becaus

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Both Assertion and Reason are true and Reason is the correct explanation of the Assertion.

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(A) Azeotropic mixtures are constant boiling mixtures that distill without change in composition. They are formed only by non-$ideal$ solutions because $ideal$ solutions do not show significant deviations from Raoult's Law to form azeotropes.Positive deviations from Raoult's Law lead to minimum boiling azeotropes (boiling point less than both components),while negative deviations lead to maximum boiling azeotropes (boiling point greater than both components). Thus,the Assertion is true.The definition of an azeotrope is a mixture that boils at a constant temperature and has the same composition in both the liquid and vapour phases. This property is the fundamental reason why they cannot be separated by fractional distillation. Thus,the Reason is true and correctly explains why such mixtures behave as a single component during distillation,which is the basis for the Assertion.

Assertion : Azeotropic mixtures are formed only by non-$ideal$ solutions and they may have boiling points either greater than both components or less than both the components.
Reason : The composition of the vapour phase is same as that of the liquid phase of an azeotropic mixture.

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Assertion : Azeotropic mixtures are formed only by non-$ideal$ solutions and they may have boiling points either greater than both components or less than both the components.Reason : The composition of the vapour phase is same as that of the liquid phase of an azeotropic mixture.