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Which one is a colligative property ? [1992]
  • a)
    boiling point
  • b)
    vapour pressure
  • c)
    osmotic pressure
  • d)
    freezing point
Correct answer is option 'C'. Can you explain this answer?
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Which one is a colligative property ? [1992]a)boiling pointb)vapour pr...
Osmotic pressure is a colligative property.
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Colligative Properties

Colligative properties are those properties of a solution that depend on the number of solute particles present in the solution rather than their chemical nature. These properties include:

- Boiling point elevation
- Freezing point depression
- Osmotic pressure
- Vapor pressure lowering

Colligative Property: Osmotic Pressure

Osmotic pressure is the pressure required to stop the flow of solvent molecules across a semipermeable membrane from a region of low solute concentration to a region of high solute concentration. It is a colligative property because it depends on the number of solute particles in the solution.

The greater the number of solute particles in a solution, the lower the water potential of the solution, and the higher the osmotic pressure. Osmotic pressure is an important property of biological fluids such as blood and is involved in processes such as kidney function and water uptake by plant roots.

Conclusion

In conclusion, the colligative properties of a solution depend on the number of solute particles present in the solution rather than their chemical nature. Osmotic pressure is a colligative property that depends on the number of solute particles in the solution and is involved in important biological processes.
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