JEE Mains 28-July-2022 Shift 2 Solved Paper

A gaseous mixture of two substances A and B, under a total pressure of 0.8‌atm is in equilibrium with an ideal liquid solution. The mole fraction of substance A is 0.5 in the vapour phase and 0.2 in the liquid phase. The vapour pressure of pure liquid A is atm. (Nearest integer)