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The mixture which shows positive deviati...

The mixture which shows positive deviation from Raoult's law is

A

ethanol + acetone

B

benzene + toluene

C

acetone + chloroform

D

chloroethane + bromoethane

Text Solution

Verified by Experts

The correct Answer is:
A
Mixture of ethanol and acetone shows positive deviation from Raoult.s law.
In pure ethanol, molecules are hydrogen bonded. On adding acetone, its molecules get in between the host molecules and break some of the hydrogen bonds between them. Due to weaking of interactions, the solution shows positive deviation from Raoult.s law.
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