Identify the gas which is readily adsorbed by activated charcoal:

Options

A. `N_(2)`
B. `SO_(2)`
C. `H_(2)`
D. `O_(2)`

Answer

B

Explanation

In general, more easily liquefiable gases (ie.higher critical temperatures) are readily adsorbed as van der Waal.s forces are stronger near the critical temperatures. Thus, 1 g of activated charcoal adsorbs 380 ml of sulphur dioxide (critical temperature `157^(@)C`), 16 ml of methane (critical temperature -`83^(@)C`) and 4.5 ml of hydrogen (critical temperature - `240^(@)C`).