Solutions

The following solutions were prepared by dissolving 10 g of glucose (${\mathrm{C}}_6{\mathrm{H}}_{12}{\mathrm{O}}_6$) in 250 mL of water ($P_1$), 10 g of urea ($\mathrm{C}{\mathrm{H}}_4{\mathrm{N}}_2\mathrm{O}$) in 250 mL of water ($P_2$) and 10 g of sucrose (${\mathrm{C}}_{12}{\mathrm{H}}_{22}{\mathrm{O}}_{11}$) in 250 mL of water ($P_3$). The right option for the decreasing order of osmotic pressure of these solutions is: