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A solution of acetone in ethanol

1. shows a positive deviation from Raoult’s law
2. behaves like a non ideal solution
3. obeys Raoult’s law
4. shows a negative deviation from Raoult’s law

Correct answer: shows a positive deviation from Raoult’s law

Solution

Acetone and ethanol form weaker intermolecular forces in the solution compared to their pure states, leading to increased vapor pressure and a positive deviation from Raoult's law.

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