Which of the followings is correct

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Question -

Which of the followings is correct –

Options:

A . For an non-ideal solution

△ H_{m i x} > 0, △ V_{m i x} > 0.

B . In a solution showing negative deviation from Raoult's law A-B type of molecular interactions are stronger than A-A and B-B type of molecular interactions.

C . Nitric acid and Water solution shows positive deviation from Raoult's law.

D . Azeotrope boils at temperature below the boiling temperature of its constituents.

Answer: Option B
:
B

$a) △ H_{m i x} > 0, △ V m i x > 0$ are true for mixtures showing positive deviations from Raoult's law only. Hence option (a) is incorrect
b) It is true

c) Nitric acid and water forms intermolecular H-bonding. Hence shows Negative deviation from Raoult's law.

d) Azeotropes are of two types – minimum and maximum boiling azeotropes. Only minimum boiling Azeotrope boils at temperature below the boiling temperature of its constituents. Hence option (d) is incorrect.

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