Question

Solutions A,B,C and D are respectively `0.1M` glucose, `0.05M NaCI, 0.05M BaCI_(2)` and `0.1M AICI_(3)`. Which one of the following pairs is isotonic?
A. A and B
B. B and C
C. A and D
D. A and C

Answer 1

Correct Answer - A
Isotonic solutions have same molar concentration of solute particles in solution. Molar concentration of particles in solution are `0.1M` in glucose, `2 xx 0.05 M` in `NaCI, 3 xx 0.05` in `BaCI_(2)` and `4 xx 0.1` in `AICI_(3)`. Therefore, `0.1M` glucose and `0.5M NaCI` solutions are isotonic.