Question

Mixture (s) showing positive deviation from Raoult’s law at 35⁰C is (are)
(A) carbon tetrachloride + methanol (B) carbon disulphide + acetone
(C) benzene + toluene (D) phenol + aniline

Answer 1

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❥(A) CCl4 + CH3OH Positive deviation from Raoults law.Here, H - bonding in methanol is broken by CCl4 .

❥(B) image : Mixing of polar and non - polar liquids

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Answer 2

Answer:

(A) CCl

4

+CH

3

OH⇒ Positive deviation from Raoults law.

Here, H- bonding in methanol is broken by CCl

4

.

(B) image : Mixing of polar and non-polar liquids will produce a solution of weaker interaction, resulting positive deviation

(C) C

6

H

6

+C

7

H

8

⇒ Ideal solution

(D) image : Here stronger H-bonding is form leading to negative deviation.

solution