Which of the following gases is light than air? by Sunday | May 11 | Chemistry WAEC | 0 comments A. CO2 B. SO2 C. HCI D. NH3 Correct Answer: Option D D. NH3 Users Also Read These:A form of carbon used for absorbing poisonous gases…A source of sound produces waves in air of…Which of the following gases is used to retard the…The nitrogen obtained from air has a density higher…Red light travels faster than blue light when both…