Match the solution in Column I with its nature in Column II — Solutions and Colligative Properties Chemistry Question

💡 Solution & Explanation

Benzene + toluene form an ideal solution (Q). Ethanol + water shows a positive deviation, meaning it is a non-ideal solution (P) with an endothermic mixing process, $\Delta H_{\text{mix}} > 0$ (R). Benzene + chloroform also shows positive deviation, hence non-ideal (P) with $\Delta H_{\text{mix}} > 0$ (R). Acetone + chloroform shows a negative deviation due to hydrogen bonding, making it non-ideal (P) with an exothermic mixing process, $\Delta H_{\text{mix}} < 0$ (S). Therefore, correct answer is A-Q, B-P,R, C-P,R, D-P,S.