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:In a mixture of gases which do not react chemically…Which of the following gases is used to retard the…The nitrogen obtained from air has a density higher…A parallel beam of light is to be obtained from the…Which of the following statements is not correct for…