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Q.

At certain temperature and pressure, ‘X’ grams of Hydrogen effuses out in 20 minutes.Under similar conditions 1.414 grams of Helium effuses out in 20 minutes. X is equal to

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a

2.82 g

b

2 g

c

0.5 g

d

1 g

answer is D.

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Detailed Solution

WH2WHe=MH2MHe; X1.414=24;         X=1 g ;
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