• # question_answer The osmotic pressure of a dilute solution of an ionic compound XY in water is four times that of a solution of $0.01\,M\,BaC{{l}_{2}}$in water. Assuming complete dissociation of the given ionic compounds in water, the concentration of XY (in $mol\,{{L}^{-1}}$) in solution is :                         [JEE Main 9-4-2019 Morning] A) $6\times {{10}^{-2}}$B) $4\times {{10}^{-4}}$C) $16\times {{10}^{-4}}$                 D) $4\times {{10}^{-2}}$

${{\pi }_{XY}}=4{{\pi }_{BaC{{l}_{2}}}}$           $2\times [XY]=4\times 3\times 0.01$ (Assuming same temperature) $\Rightarrow [XY]=0.06M$ $\therefore$ Ans. is [a]