MHT CET202611 April 2026Morning ShiftChemistrySolutionsActual
Identify from the following pair of solutions that exhibits the same osmotic pressure. [molar mass of urea = 60 g mol ⁻¹ and molar mass of glucose = 180 g mol ⁻¹ ]
Options
- A6 g/L urea solution and 18 g/L glucose solution.
- B12 g/L urea solution and 18 g/L glucose solution.
- C18 g/L urea solution and 18 g/L glucose solution.
- D6 g/L urea solution and 6 g/L glucose solution.
Correct answer
A. 6 g/L urea solution and 18 g/L glucose solution.
Step-by-step solution
Osmotic pressure is given by = iCRT . For non-electrolytes like urea and glucose, the van't Hoff factor i = 1 . For two solutions to exhibit the same osmotic pressure at a given temperature, their molar concentrations must be equal ( C₁ = C₂ ). Molar concentration C = mass per unit volume molar mass . For 6 g/L urea solution: C_ urea = 6 60 = 0.1 mol/L For 18 g/L glucose solution: C_ glucose = 18 180 = 0.1 mol/L Since C_ urea = C_ glucose , these two solutions are isotonic and exhibit the same osmotic pressure. Ans