Molecular weight of a gas that diffuses twice is rapidly is the gas with molecular weight 64 is?

Molecular weight of a gas that diffuses twice is rapidly is the gas with molecular weight 64 is or:Molecular weight of a gas that diffuses twice is ra

Molecular weight of a gas that diffuses twice is rapidly is the gas with molecular weight 64 is

or:Molecular weight of a gas that diffuses twice is rapidly is the gas with molecular weight 64 is

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