Which of the following pairs of solutions are expected to be isotonic, if temperature being the same?
(a) 0.1 M glucose and 0.1 M C6H5NH3Cl
(b) 0.1 M NaCI and 0.05 M BaCl2
(c) 0.1 M Na2SO4 and 0.1 M KNO3
(d) 0.1 M BaCl2 and 0.075 M FeCl3
Correct Option (d) 0.1 M BaCl2 and 0.075 M FeCl3
Explanation:
The effective molarity (concentration) of 0.1 M
BaCl2 is equal to the effective molarity of 0.075 M
FeCl3, thus they are isotonic.
