Q.

A binary solution of ethanol and n-heptane is an example of

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a

a solution exhibiting positive deviations at low concentrations and negative deviations at higher concentration

b

a nonideal solution with positive deviations from Raoult's law

c

an ideal solution

answer is B.

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Detailed Solution

Imperfect solution with a positive deviation
Smaller interactions than those in ethanol exist between n-heptane and ethanol. Solution therefore displays +ve deviance.

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