The solute `A` is a ternary electrolyte and solute `B` is a non- electrolyte. If `0.1` M solution of solute `B` produces an osmotic pressure of `2P`, then, `0.05` M solution of `A` at the same temperature will produce an osmotic pressure equal to

Options

A. P
B. 1.5P
C. 2P
D. 3P

Answer

D

Explanation

For ternary electrolyte, osmotic pressure `pi=(0.05xx3)("R")("T")`
Osmotic pressure of `B=2P=(0.1)("R")("T") or P=0.1/2RT`
`P=0.05"RT"`
Since temperature is the same, comparing the two equations, we obtain the osmotic pressure of ternary electrolyte `=3"P"`.