1.

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

Answer»

If both assertion and reason are true, and reason is the true explanation of the assertion.
If both assertion and reason are true, but reason is not the true explanation of the assertion.
If assertion is true, but reason is false.
If both assertion and reason are false.

Solution :Correct explanation. The boiling point of the azeotropic MIXTURE may be greater or less depending upon whether solution SHOWS NEGATIVE or positive deviation from Raoult's LAW.


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