Manipal MET2010ChemistrySolutions
At 25^ C , the highest osmotic pressure is exhibited by 0.1 M solution of
Options
- Aurea
- Bglucose
- CKCl
- DCaCl ₂
Correct answer
D. CaCl ₂
Step-by-step solution
Osmotic pressure is a colligative property ie, depends only upon the number of particles or ions in solution. More the number of ions in solution, more will be the osmotic pressure of solution. (i) 0.1 M urea and 0.1 M glucose will have same number of molecules in solution as they don't ionise. (ii) KCl K ⁺+ Cl ⁻ (2 ions) (iii) CaCl ₂ Ca ²⁺+2 Cl ⁻ (3 ions) CaCl ₂ produces maximum number of ions. It will have highest osmotic pressure.