1. Tardigrade
  2. Question
  3. Chemistry
  4. Which of the following aqueous solutions will exhibit highest boiling point ?

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Q. Which of the following aqueous solutions will exhibit highest boiling point ?

Solutions

Solution:

Highest $b.pt \, \Rightarrow $ Maximum $\Delta$TB
$\Rightarrow $ Maximum number of particles (ions or molecules) per unit volume in solution.
(A) No. of particles in 0.01 M $Na_2SO_4 = 3 \times 0.01$ M = 0.03 M
(B) No. of particles in 0.015 M glucose = 0.015 M
(C) No. of particles in 0.015 M urea = 0.015 M
(D) No. of particles in 0.01 M $KNO_3 = 0.01 \times 2 = 0.02$ M
Thus, choice (A) is correct.