Answer the question (given below) which are based on the following diagra.
Consider some facts about the above phase diagram :
Vapour pressure diagram for real solutions of two liquids `A` and `B` that exhibit a positive deviation from Raoult's law. The vapour pressure of both `A` and `B` are greater than predicted by Raoult's law. The dashed lines lines represented the plots for ideal solutions.
`A`: This is observed when `A...B` attraction are greater than average of `A...B` and `B...B` attraction:
`B`: `DeltaH_("mix")=+ve,DeltaV_("mix")=+ve`
`C`: Boiling point is smaller than expected such that vaporisation is increased
`D`: Mixture is called azeotropic mixture
Select correct facts

Options

A. A,B,C
B. B,C,D
C. A,C,D
D. A,B,C,D

Answer

B

Explanation

B,C and D are the conditions and facts for positives deviation from Raoult's law.
(A) is incorrect.
Because `A-B` attractive force should be weaker than `A-A` and `B-B` attractive forces.