Question

On the basis of data given below predict which of the following gases shows least adsorption on a definite amount of charcoal?

Gas	$\mathrm { CO } _ { 2 }$	$\mathrm { SO } _ { 2 }$	$\mathrm { CH } _ { 4 }$	$\mathrm { H } _ { 2 }$
Critical temp./K	304	630	190	33

• A. $\mathrm { CO } _ { 2 }$
• B. $\mathrm { SO } _ { 2 }$
• C. $\mathrm { CH } _ { 4 }$
• D. $\mathrm { H } _ { 2 }$

Answer 1

Answer: (D)

$\mathrm { H } _ { 2 }$

Answer 2

More easily liquefible gases are adsorbed readily. Thus, $\mathrm { H } _ { 2 }$gas having low critical temperature (33 K) is not easily liquefied and shows least adsorption.