QuestionSolutions / osmotic pressure
Which among the following is the correct order for osmotic pressure of equimolar solutions of glucose, sodium chloride and barium chloride?
- (a) C₆H₁₂O₆ > BaCl₂ > NaCl
- (b) C₆H₁₂O₆ > NaCl > BaCl₂
- (c) BaCl₂ > NaCl > C₆H₁₂O₆
- (d) NaCl > C₆H₁₂O₆ > BaCl₂
Answer: (c) BaCl₂ > NaCl > C₆H₁₂O₆
π = iCRT; equimolar so π ∝ i. BaCl₂ i = 3; NaCl i = 2; glucose i = 1 → BaCl₂ > NaCl > C₆H₁₂O₆ → (c).