Solution A, B, C and D are respectively 0.1 M glucose, 0.05 M NaCl, 0.05 M `BaCl_(2)` and 0.1 M `AlCl_(3).` Which one of the following paris is istonic ?

Options

A. A and B
B. B and C
C. A and D
D. A and C

Answer

A

Explanation

Isotoic solutiosn have same molar concentration of solute in slution. Molar concentration of particles in solutiona are `0.1` in glucose, `2xx0.05 M ` in NacI`3xx0.05` in `BaCI_(2) and 4xx0.1` in `AICI_(3)`. Theirfore, `0.1 M` glucose and `0.05` M NaCI solutions are isotonic.