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Solutions - JEE mains PYQ 2026 series

StudyBeacon Quiz – Colligative Properties (JEE Main PYQ) Score : 0 Q1. Statement I: Henry's law constant $K_H$ is constant with respect to variations in solution concentration for ideally dilute solutions. Statement II: $K_H$ does not differ for the same solute in different solvents. Statement I true, Statement II false Statement I false, Statement II true Both false Both true Check Answer Henry’s law: $P = K_H x$ For dilute solutions $K_H$ remains constant. But $K_H$ **depends strongly on solvent and temperature**, so statement II is false. Q2. 0.3 g solute A (M = 60 g/mol) and 0.9 g solute B (M = 180 g/mol) dissolved in 100 mL water at 27°C. 1.47 atm 2.46 atm 0.82 atm 1.23 atm Check Answer Osmotic pressure $\pi = CRT$ Moles A $=0.3/60=0.005$ Moles B $=0.9/180=0.005$ Total moles $=0.01$ Volume = 0.1 L $C=0.1$ $\pi = 0.1 \times 0.082 \times 300$ $\pi = 2.46 \text{ atm}$ Q3. Vapour pressure dec...