Question

Assuming each salt to be 90% dissociated which of the following will have the highest osmotic pressure?

• A. Decinormal ${Al}_2{\left(S{O}_4\right)}_3$
• B. Decinormal $Ba{Cl}_2$
• C. Decinormal ${Na}_{2}S{O}_4$
• D. A solution obtained by mixing equal volumes of (b) and (c) and filtering

Answer 1

The correct option is A Decinormal ${Al}_2{\left(S{O}_4\right)}_3$

As we know, osmotic pressure will be high if no of ions are more and ${Al}_2{\left(S{O}_4\right)}_3$ furnishes maximum number of ions so it shows maximum pressure.