A binary liquid solution is prepared by mixing n-heptane and ethanol. Which one of the following statements is correct regarding the behaviour of the solution?

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The solution is non-ideal, showing -ve deviation from Raoult’s Law.

The solution is non-ideal, showing + ve deviation from Raoult’s Law.

n-heptane shows + ve deviation while ethanol shows -ve deviation from Raoult’s Law.

The solution formed is an ideal solution.

answer is B.

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Detailed Solution

For this solution intermolecular interactions between n-heptane and ethanol are weaker than n-heptane-n-heptane & ethanol-ethanol interactions hence the solution of n-heptane and ethanol is non-ideal and shows positive deviation from Raoult’s law.

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