The relationship between osmotic pressure at `273 K` when `10 g` glucose `(P_(1)), 10 g` urea `(P_(2))` and `10 g` sucrose `(P_(3))` are dissolved in `250 mL` of water is:

Options

A. `P_(1)gtP_(2)gtP_(3)`
B. `P_(3)gt P_(1)gt P_(2)`
C. `P_(2)gtP_(1)gtP_(3)`
D. `P_(3)gtP_(2)gtP_(1)`

Answer

D

Explanation

Glucose-nonionised
`MgCl_(2) hArr Mg^(2+) + 2Cl^(_) rarr 3 "particles"`
`NaCl hArr Na^(+) + Cl^(_) rarr 2 "particles"`
`As pi prop "molarity"`
`P_(3) gt P_(2) gt P_(1)`