An unknown gas A, effuses at a rate that is only 0.355 times that of O, at the same temperature. What is the identity of the unknown gas? А. Н2 В. Clz С. Вr2 D. 2

Q: I'm unsure of how to answer the question attached below the question is highlighted in red.

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A: The correct option is - d. 16

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A: The relation between the rate of effusion and the molar mass is given by Graham's law; r1r2=M2M1

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A: Please see explanation

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