A) Benzene + Toluene
B) Acetone + Chloroform
C) Chloroethane + Bromoethane
D) Ethanol + Acetone
Correct Answer: D
Solution :
[d] Pure ethanol molecules are hydrogen bonded. On adding acetone, its molecules get in between the ethanol molecules and break some of the hydrogen bonds between them. This weakens the intermolecular attractive interactions and the solution shows positive deviation from Raoult's law.
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