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AIIMS2019ChemistrySolutions

Assertion: Vapour pressure of solvent A increases when a more volatile solvent B is added. Reason : B is more volatile therefore vapour pressure of B is greater than that of A .

Options

  1. AIf both assertion and reason are true and reason is the correct explanation of assertion.
  2. BIf both assertion and reason are true but reason is not the correct explanation of assertion.
  3. CIf assertion is true but reason is false.
  4. DIf both assertion and reason are false.

Correct answer

A. If both assertion and reason are true and reason is the correct explanation of assertion.

Step-by-step solution

Vapour pressure increases means the solvent B is more volatile than A and it has vapour pressure greater than that of A .

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