Identify the mixture that shows positive deviations from Raoult's Law

Question

Canvas Classes · Accepted Answer

Strategy:
 Positive deviation occurs when intermolecular forces between two different molecules (A-B) are weaker than in the pure components. This is typically observed when mixing a polar molecule with a non-polar one or when breaking existing hydrogen bonds.

Step 1: Evaluate the options
1. Acetone + Aniline: Forms hydrogen bonds (stronger A-B).  Negative Deviation
2. Chloroform + Benzene: Forms weak hydrogen bonds/interactions.  Negative Deviation
3. Chloroform + Acetone: Strong hydrogen bond

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