Which of the following solutions has highest osmotic pressure?

Q. Arrange the following solutions in increasing order of their osmotic pressures
(i) $34.2g/litre$ sucrose
(ii) $60g/litre$ of urea
(iii) $90g/litre$ of glucose
(iv) $58.5g/litre$ of sodium chloride

Q. The relationship between osmotic pressure at 273 K when 10 g glucose, 10 g urea and 10 g sucrose are dissolved in 250 mL of water to form separate solutions is:
[$P_1,P_2$ and $P_3$ are osmotic pressure of glucose,urea and sucrose solution respectivitely]

Q. The relationship between osmotic pressure at 273 K when 10 g glucose, 10 g urea and 10 g sucrose are dissolved in 250 mL of water to form separate solutions is:

Q. What would be the osmotic pressure of $0.05M$ solution of sucrose at $5^{o}C$? Find out the concentration of a solution of glucose which would be isotonic with this solution of sucrose.

Q. The relationship between osmotic pressures $({\pi }_{glucose},{\pi }_{urea}and{\pi }_{sucrose})$ at a definite temperature when $1g$ glucose, $1g$ urea and $1g$ sucrose are dissloved in $1litre$ of water is:
(Assume $\text{Vant Hoff factor}\left(i\right)=1$ for all):
Molecular masses for urea, glucose and sucrose are $60g/mol,180g/mol\&342g/mol$ respectively