Which of the following colligative properties is associated with the concentration term 'molarity'?

1. Lowering of vap.pressure

2. Osmotic pressure

3. Depression in freezing point

4. Elevation in boiling point

Which pair of solutions is likely to exhibit isotonicity at a constant temperature?

Which of the following aqueous solution has osmotic pressure nearest to that an equimolar solution of K₄[Fe(CN)₆]?

1. Na₂SO₄

2. BaCl₂

3. Al₂(SO₄)₃

4. C₁₂H₂₂O₁₁

The osmotic pressure of equimolar aqueous solutions of BaCl₂, NaCl, and glucose is compared.
Arrange these solutions in decreasing order of their osmotic pressure.

1. BaCl₂ > NaCl > Glucose

2. Glucose > NaCI > BaCl₂

3. NaCl > BaCl₂ >Glucose

4. NaCl> Glucose > BaCl₂

The relationship between osmotic pressure at 273 K, when 10 gm glucose (P₁), 10 gm urea (P₂), and 10 gm sucrose (P₃) are dissolved in 250 ml of water, is-

1. P₁ > P₂ > P₃

2. P₃ > P₁ > P₂

3. P₂ > P₁ > P₃

4. P₂ > P₃ > P₁