Solved UPSC CDS/OTA Question
A solved UPSC CDS/OTA PYQ - decoded step-by-step.
Solve it the standard way once - then learn the shortcut.
Q · Properties of Gases Medium · 45s
Graham’s Law of Diffusion states that the rate of diffusion of a gas
TopicProperties of Gases
Question Typemultiple choice
DifficultyMedium
Marking+1 / −0.33
Test Duration30 min
Step-by-Step Solution
The complete worked solution.
Every step explained - no skipped algebra.
Answer: b) Inversely proportional to √M Explanation: r₁/r₂ = √(M₂/M₁).
Final Answer: Option B - Inversely proportional to the square root of its molar mass