A `0.5 dm^(3)` flask contains gas `A` and `1 dm^(3)` flask contains gas `B` at the same temperature. If density of `A= 3g//dm^(3)` and that of `B= 1.5g //dm^(3)` and the molar mass of `A= 1//2` of `B`, the ratio of pressure excerted by gases is:

Options

A. `P_(A) //P_(B)=2`
B. `P_(A) //P_(B) = 1`
C. `P_(A)//P_(B)=4`
D. `P_(A)//P_(B)=3`

Answer

C