Which has the maximum osmotic pressure at temperature `T`?

Options

A. 100mL of 1 M urea solution.
B. 300 mL of 1 M glucose solution.
C. Mixture of 100 mL of 1 M urea solution and 300 mL of 1 M glucose solution
D. All are isotonic.

Answer

D

Explanation

`pi = MRT`
(i) `pi = RT`
(ii) `pi = RT`
(iii) `pi = RT` (mix has concentration= 1 M)