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Q.

Which gas effuses fastest under identical conditions?

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a

$O_{2}$

b

${CH}_{4}$

c

${Cl}_{2}$

d

$N_{2}$

answer is D.

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Detailed Solution

Methane ( $C H_{4}$ ) gas effuses fastest under identical conditions because the gas whose molecular weight is lowest will effuse first.

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Which gas effuses fastest under identical conditions?