Define, (i) Hypertonic solution, (ii) Hypotonic solution, (iii) Isotonic solution.

Explanation

(i) Isotonic solution : Two or more solutions exerting the same osmotic pressure are called isotonic solutions.
(ii) Hypertonic solution : A solution having osmotic pressure higher than that of another solution is said to be hypertonic solution.
(iii) Hypotonic solution : A solution having osmotic pressure lower than that of another solution is said to be hypotonic solution with that solution.