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Byju's Answer

Standard XII

Chemistry

Dalton's Law of Partial Pressures

Assertion :At...

Question

Assertion :At equilibrium, vapour phase will be always rich in component which is more volatile Reason: The composition of vapour phase in equilibrium with the solution is determined by the partial pressure of the components.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Both Assertion and Reason are incorrect

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Solution

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
At equilibrium vapor phase will be always rich in component is more volatile.
The higher the vapor pressure of a liquid at a given temperature, the higher the volatility and the lower the normal boiling point of the liquid. The composition of vapor phase in equilibrium with the solution is determined by the partial pressure of the components.

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