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One litre of a gaseous mixture of two ga...

One litre of a gaseous mixture of two gases mixture of two gases effuses in 311 seconds while 2 litre of oxygen takes 20 minutes. The vapour density of gaseous mixture containing `CH_(4)` and `H_(2)` is:

A

4

B

`4.3`

C

`3.4`

D

`5`

Text Solution

Verified by Experts

The correct Answer is:
B
`(1/311)/(2/60) = sqrt((32)/(M_("mix")))`
`M_("mix") = 8.6`
`V.D_("mix") = (M_("mix"))/(2) = (8.6)/(2) = 4.3`
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