A gas diffuses one-third as fast as O2 at 100 ˚C. This gas could be | Gases

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A gas diffuses one-third as fast as O₂ at 100 ˚C. This gas could be

He (M = 4)

C₂H₅F (M = 48)

C₇H₁₂ (M = 96)

C₅F₁₂ (M = 288)

✓ Correct

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