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The mixture which shows positive deviati...

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

A

Benzene + Toluene

B

Acetone +Chloroform

C

Chloroethane + Bromoethane

D

Ethanol + Acetone

Text Solution

Verified by Experts

The correct Answer is:
D
While ethanol -acetone mixture shows positive deviation due to weaker A-B interaction in comparison to A-A interaction .
pure ethanol molecules are hydrogen bonded . When acetone is added , its molecules get in between the elevant molecules and break some of the hydrogen bonds them .
Thus , the intermolecular attractive interactions are weakness and the solution shows positive deviation from law .
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