​​The relationship π v = nRT is not obeyed by options are - a) concentration solution b) dilute solution c) extremely dilute solution . Explain the correct option .

Dear Student,
The relation $\pi v=nRT$ does not hold true for extremely dilute solutions because in extremely dilute solutions . because in such solutions the process of osmosis would not take place and they would be isotonic with water so not there would be no measurable factor for osmosis