Correct Answer - C
The amount of gas adsorbed by a solid depends on the nature of gas. More easily liquefiable gas, i.e., gases with higher critical temperature are readily adsorbed as Vander waals forces are stronger near the critical temperature.
`{:(Gas:,N_(2),H_(2),CO_(2),CH_(4)),(T_(C)(H):,126,33,304,190):}`
