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Which of the following is not a colligative property?

Options

  1. AElevation in boiling point
  2. BDepression in freezing point
  3. COsmotic pressure
  4. DLowering of vapour pressure

Correct answer

D. Lowering of vapour pressure

Step-by-step solution

Those properties of ideal solutions which depend only on the number of particles of the solute (molecules or ions) dissolved in a definite amount of the solvent and do not depend on the nature of solute are called colligative properties. The important colligative properties are (i) Relative lowering of vapour pressure. (ii) Osmotic pressure (iii) Elevation in boiling point (iv) Depression in freezing point

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