Which of the following gases will have the highest rate of diffusion under the same conditions? (H = 1, C =12, O = 16, S = 32, CI = 35.5)

Which of the following gases will have the highest rate of diffusion under the same conditions? (H = 1, C =12, O = 16, S = 32, CI = 35.5)

A O₂
B CI₂
C HCI
D H₂S
E CO₂

waec 1992 chemistry

The correct answer is A. O₂

No explanation given

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