A mixture of gases contains `H_(2)` and `O_(2)` gases in the ratio of `1:4 (w//w)`. What is the molar ratio of the two gases in the mixture?

Options

A. `1:4`
B. `4:1`
C. `16:1`
D. `2:1`

Answer

B

Explanation

Let the mass of `H_(2)` gas be xg and mass of `O_(2)` gas
4xg
`{:("Molar",H_(2),:,O_(2)),("mass",2,:,32),("i.e.",1,:,16):}`
`therefore" Molar ratio"=(n_(H_(2)))/(n_(O_(2)))=(x//2)/(4x//32)=(x xx32)/(2xx4x)=(4)/(1)=4:1`