Question

Which of the following gases present in a polluted area will be adsorbed most easily on the charcoal gas mask?

• A. $H_2$
• B. $O_2$
• C. $N_2$
• D. $S{O}_2$

Answer 1

Answer: (D)

$S{O}_2$

• The amount of gas adsorbed by a solid depends on the nature of gas. In general, easily liquefiable gases.
  
• Easily liquefiable gases will have higher critical temperatures are readily adsorbed as van der Waals’ forces are stronger near the critical temperatures.
  
• Here, $S{O}_2$ is having the maximum critical temperature and hence it gets adsorbed most easily on the charcoal gas mask.