See image — AITS & Test Series Chemistry Question

💡 Solution & Explanation

Since closed chamber is there, hence there will be an equilibrium. So relative lowering of vapour pressure will be same. 6 12 6 C H O x   x x 10 / M 40 / 180 40 60 10 90 180 18 M 18    x x 10 / M 4 / 18 4 60 10 5 18 18 M                x x 10 / M 4 1 64 16 10 5 M           x x 10 16 10 5 M M    x 15 10 5 M   x M 30 