The vapour density of a mixture contaninig `NO_(2)` and `N_(2)O_(4)` is `27.6` . The mole fraction of `N_(2)O_(4)` in the mixture is :

Options

A. `2:2:3`
B. `6:6:1`
C. `sqrt(2):sqrt(2):3`
D. `4:4:3`

Answer

d

Explanation

(d) `(n'_(He))/(n'_(CH_(4)))=(1)/(2)sqrt((16)/(4))=(1)/(1)`
`(n'_(He))/(n'SO_(2))=(1)/(3)sqrt((64)/(4))=(4)/(3)`
`n'_(He):n'_(CH_(4)):n'_(SO_(2))=4:4:3`