The following solutions were prepared by dissolving 10 g of glucose ( C_6 H_12 O_6) in 250 ml of water ( P_1), 10 g of urea ( CH_4 N_2 O ) in 250 ml…

The following solutions were prepared by dissolving $\displaystyle 10$ g of glucose $\displaystyle \left(\mathrm{C}_6 \mathrm{H}_{12} \mathrm{O}_6\right)$ in $\displaystyle 250$ ml of water $\displaystyle \left(\mathrm{P}_1\right)$, $\displaystyle 10$ g of urea $\displaystyle \left(\mathrm{CH}_4 \mathrm{~N}_2 \mathrm{O}\right)$ in $\displaystyle 250$ ml of water $\displaystyle \left(\mathrm{P}_2\right)$ and $\displaystyle 10$ g of sucrose $\displaystyle \left(\mathrm{C}_{12} \mathrm{H}_{22} \mathrm{O}_{11}\right)$ in $\displaystyle 250$ ml of water $\displaystyle \left(\mathrm{P}_3\right)$. The right option for the decreasing order of osmotic pressure of these solutions is :