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Mixture (s) showing positive deviation f...

Mixture (s) showing positive deviation from Raoult's law at `35^(@)C` is (are)

A

carbon tetrachloride + methanol

B

carbon disulphide + acetone

C

benzene + toluene

D

phenol + aniline

Text Solution

Verified by Experts

Positive deviation is observed when the interaction between A and B in mixture is weaker than the interaction between A and B alone.
(Interaction between A-A+interaction between B-B) `gt` (2`xx` interaction between A -B).
Benzene and toluene forms an ideal solution while phenol and aniline form a solution showing –ve deviation from Raoult’s law.
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Knowledge Check

  • Which of the following liquid pairs shown a positive deviation from Raoult's law ?

    A
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    B
    Acetone - chloroform
    C
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    D
    Benzene-methanol

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