Ideal and Non-ideal Solutions — Prelims Questions

Which of the following mixtures shows positive deviation from Raoult's Law?

For a solution showing negative deviation from Raoult's Law, which of the following statements is INCORRECT?

At $298\,\text{K}$, the vapor pressure of pure liquid A is $450\,\text{mmHg}$ and that of pure liquid B is $700\,\text{mmHg}$. If the total vapor pressure of a solution containing A and B is $600\,\text{mmHg}$, and the mole fraction of A in the solution is $0.5$, what type of deviation does this solution show from Raoult's Law?

Which of the following pairs of liquids is expected to form a nearly ideal solution?

An azeotropic mixture of two liquids has a boiling point lower than either of the pure liquids. This type of azeotrope is formed by solutions showing:

Which of the following statements is true for an ideal solution?