The osmotic pressure `pi` depends on the molar concentration of the solution `(pi= CRT)`. If two solutions are of equal solute concentration and, hence, have the same osomotic pressure, they are said to be isotonic. If two solutions are of unequal oxmotic pressure, the more concentrated solution is said to be hypertonic and the more diluted solution is described as hypotonic. Osmosis is the major mechanism for transporting water upward in the plants. Answer the following questions
What would be the percent strength of solution of urea that would be isotonic with 4.5% solution of glucose ?

Options

A. `4.5%`
B. `13.5%`
C. `1.5%`
D. `9%`

Answer

C