If `1L` of `O_(2)` at `15^(@)C` and `750 mm` pressure contains `N` molecules, the number of molecules in 2 litre of `SO_(2)` under the same conditions of temperature and pressure will be

Options

A. `N//2`
B. `N`
C. `2N`
D. `N`

Answer

C

Explanation

Under similar conditions of temperature and pressure, equal volume of gas contains equal number of moleucles.
`:. 1 L = N` molecules
`2 L = 2 N` molecules