Answer:
(a)
Mixture showing positive deviation from Raoult's law Ethanol and acetone.
Reason : Solute - solvent interaction is weaker than solute solute and
solvent - solvent interactions.
(b) Mixture showing negative deviation from Raoult's law -
chloroform and acetone.
Reason : Solute solvent interaction is stronger than
solute solute and solvent - solvent interaction.
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