(i) A–B interactions are stronger than those between A–A or B–B.

(ii) vapour pressure of solution increases because more number of molecules of liquids A and B can escape from the solution.

(iii) vapour pressure of solution decreases because less number of molecules of only one of the liquids escape from the solution.

(iv) A–B interactions are weaker than those between A–A or B–B.

Correct Answer: (iv) A–B interactions are weaker than those between A–A or B–B

Explanation: Solutions showing a huge positive deviation from Raoult’s law create a slightly boiling azotrope in a particular composition. When it comes to the positive deviation from Raoult’s law, the interaction between AB is weaker than that between AA or BB.