Which of the following is not a colligative property?
Answer and explanation
Correct answer: Viscosity
A colligative property depends mainly on the number of solute particles in a given amount of solvent. Relative lowering of vapour pressure, boiling-point elevation, freezing-point depression, and osmotic pressure belong to this group. Viscosity is different: it depends strongly on the nature, size, shape, and intermolecular interactions of the solute and solvent. Therefore, viscosity is not a colligative property.
Frequently asked questions
What is the correct answer to this question?
Viscosity
Why is this the correct answer?
A colligative property depends mainly on the number of solute particles in a given amount of solvent. Relative lowering of vapour pressure, boiling-point elevation, freezing-point depression, and osmotic pressure belong to this group. Viscosity is different: it depends strongly on the nature, size, shape, and intermolecular interactions of the solute and solvent. Therefore, viscosity is not a colligative property.
Which subject and chapter does this question cover?
This is a Class 11 Chemistry question. Chapter: Chapter 01: Solutions.
