Solved UPSC CDS/OTA Question
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Q · Properties of Gases Medium · 45s
Which factor increases 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
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Lower molar mass : Light gases diffuse faster (Graham’s Law).
Final Answer: Option B - Lower molar mass