The mixture which shows positive deviati...

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

Benzene + Toluene

Acetone +Chloroform

Chloroethane + Bromoethane

Ethanol + Acetone

Text Solution

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The correct Answer is:

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

`CHCI_(3)+(CH_(3))_(2)CO`

`(CH_(3))_(2)CO+C_(6)H_(5)NH_(2)`

`CHCI_(3)+C_(6)H_(6)`

`(CH_(3))_(2)CO+CS_(2)`

Considering the formation, breaking and strength of hydrogen bond, predict which of the following mixtures will show a positive deviation from Raoult's law.

Methanol and acetone.

Chloroform and acetone

Nitric acid and water

Phenol and aniline

Considering the formation, breaking and strength of hydrogen bond, predict which of the following mixtures will show a positive deviation from Raoult's law?

Benzene and acetone