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Assertion: Lowering in vapour pressure i...

Assertion: Lowering in vapour pressure is not a colligative property.
Reason: Lowering of vapour pressure of a solvent depends on the number of moles of the solute dissolved in given amount of the solvent at a given temperature.

A

Both A and R are true and R is the correct explanation of A

B

Both A and R are true but R is not a correct explanation of A

C

A is true but R is false

D

A is false but R is true

Text Solution

Verified by Experts

The correct Answer is:
D
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Lowering in vapour pressure is a colligative property.

Colligative properties|Relative lowering of vapour pressure

Knowledge Check

  • Relative lowering of vapour pressure is a colligative property because

    A
    it depends on the concentration of non-electrolyte solute in solution and does not depend on the nature of the solute molecules
    B
    it depends on number of particle of electrolyte solute insolution and does not depend on the nature of the solute molecules
    C
    it depends on the concentration of non-electrolyte solute in solution as well as on the nature of the solute molecules
    D
    depends on the concentration of an electrolyte or non-electrolyte solute in in solution as well as on the nature of solute molecules
  • Relative lowering of vapour pressure is a colligative property because

    A
    It depends on the xoncentration of a non-electrolyte solute in solution and does not depend on the nature of the solute molecules
    B
    It depends on number of particles of electrolyte solute in solution and does not depend on the nature of the solute particles.
    C
    It depends on the concentration of a non-electrolyte solute in solution as well as on the nature of the solute molecules.
    D
    It depends on the concentration of an electrolyte or non-eletrolyte solute in solution as well as on the nature of solute molecules.
  • Decrease in the vapour pressure of the solvent depends on

    A
    nature of non-volatile solute
    B
    quantity of non-volatile solute
    C
    nature of solution
    D
    quantity of solution
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    Relative lowering of vapour pressure is a colligative property because …………….. .