Mixtures(s) showing positive deviation f...

Mixtures(s) showing positive deviation from Raoult’s law at `35^(@)C` is(are):

carbon tetrachloride + methanol

carbon disulphide + acetone

benzene + toluene

phenol +aniline

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The correct Answer is:

A,B

(A) H-bonding of methanol breaks when `C CI_(4)` is added so bonds become weaker, resulting positive deviation.
(B) Mixing of polar and non-polar liquids will produce a solution of weaker interaction, resulting positive deviation.
(C) Ideal solution
(D) -ve deviation because stronger H-bond is formed.

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