Which gas diffuses faster: H₂ or O₂?

Practice MCQ for SSC, UPSC, RRB Exams

A. O₂ A.
B. H₂ B.
C. Both same C.
D. Cannot be determined D.

Correct Answer: B সঠিক উত্তর: B

Explanation ব্যাখ্যা

According to Graham's Law of Diffusion, the rate of diffusion of a gas is inversely proportional to the square root of its molecular weight. Since hydrogen (H2) has a much lower molecular weight than oxygen (O2), hydrogen diffuses significantly faster.

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