On the basis fo data given below predict which of the following gases shows least adsorption on a definite amount of charcoal?
`{:("Gas" ,,CO_(2),,SO_(2),,CH_(4),,H_(2)),("Critical temp./K",,304,,630,,190,,33):}`

Options

A. `CO_(2)`
B. `SO_(2)`
C. `CH_(4)`
D. `H_(2)`

Answer

D

Explanation

Lesser the value of critical temperature of gasses lesser will be the extent of adsorption. Here `H_(2)` has lowest value of critical temperature, i.e., 33.
Hence, hydrogen gas shows least adsorption on a definite amount of charcoal.