NTA Abhyas JEE Main2020ChemistrySolutionsPractice
The osmotic pressure of equimolar solutions of urea, BaCl 2 and AlCl 3 will be in the order of
Options
- AAlCl 3   >   Urea   >   BaCl 2
- BUrea   >   BaCl 2   >   AlCl 3
- CA l C l 3 > B a C l 2 > U r e a
- DBaCl 2   >   AlCl 3   >   Urea
Correct answer
C. A l C l 3 > B a C l 2 > U r e a
Step-by-step solution
Since, osmotic pressure is a colligative property, therefore Osmotic pressure ∝ number of solute particle in the solution.( i -factor) ∵ Dissociation of AlCl 3 is maximum and of urea is minimum. Hence, order of osmotic pressure will be AlCl 3   >   BaCl 2   >   Urea