At 273 K, Pd vs P is plotted for various gases 1,2,3,4 assuming ideal behaviour for gases `N_(2), He,CO_(2)` and `H_(2)`. The correct combination is [P denotes combination in atmosphere and d denotes density in gm/L:

Options

A. `2 -N_(2),1 - He, 3 -CO_(2), 4-H_(2)`
B. `4 -N_(2),1-He,2-CO_(2),3 - H_(2)`
C. `4 - N_(2),3 - He, 2 - CO_(2), 1- H_(2)`
D. `2 -N_(2),3 - He, 1 - CO_(2), 4 - H_(2)`

Answer

D