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A gas diffuse (1)/(5) times as fast as h...

A gas diffuse `(1)/(5)` times as fast as hydrogen at same pressure. Its molecular weight is

A

50

B

25

C

`25sqrt2`

D

`50sqrt2`

Text Solution

Verified by Experts

The correct Answer is:
A
`r_(g)=1/5.r_(H_(2))`
`(M_(g))/(M_(H_(2)))=[(r_(H_(2)))/(r_(g))]^(2)=(5)^(2)=25,M_(g)=2xx25=50`
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