Which of the following colligative properties is useful to determine the molar masses of proteins, polymers or colloids, with the greatest precision?

Step-by-step solution

Proteins, polymers and colloids have very high molar masses. Due to this, their solutions have very low molar concentrations. The magnitude of colligative properties such as elevation in boiling point, depression in freezing point and relative lowering of vapour pressure is extremely small for such dilute solutions and cannot be measured with high precision. Osmotic pressure provides a measurable value even for very dilute solutions. Furthermore, osmotic pressure measurements are carried out at room temperature, wh