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AIIMS 2008
Exam
AIIMS
Year
2008
Subject
Chemistry
Chapter
States of Matter

AIIMS 2008 · Chemistry · States of Matter

Assertion : If (H_2) and (Cl_2) enclosed separately in the same...

Assertion : If (\mathrm{H}_2) and (\mathrm{Cl}_2) enclosed separately in the same vessel exert pressure of 100 and (200 \mathrm{~mm}) respectively, their mixture in the same vessel at the same temperature will exert a pressure of (300 \mathrm{~mm}). Reason : Dalton's law of partial pressures states that total pressure is the sum of partial pressures.

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

D. If both assertion and reason are false.

Step-by-step solution

H2\mathrm{H}_2 and Cl2\mathrm{Cl}_2 react chemically. Hence Dalton's law is not applicable. Dalton's law states that "at a given temperature, the total pressure exerted by two or more non-reacting gases occupying a definite volume is equal to the sum of the partial pressures of the component gases."
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