Which has maximum osmotic pressure at temperature `T`?
a. `100 mL` of `1 M` urea solution
b. `300 mL` of `1 M` glucose solution
c. Misture of `100 mL` of `1 M` urea solution and `300 mL` of `1 M` glucose solution
d. All are isotonic

Options

A. 100 mL 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

Explanation

`pi=C_("effective")RT`
(A)`C_("effective")=1M` (B) `C_("effective")=1M` (C) `C_("effective")=(100/(100+300)xx1=300/(100+300)xx1)=1`