The gas that can best be collected by downward displacement of air is? by Sunday | Oct 16 | Chemistry JAMB | 0 comments A. Chlorine B. Sulphur (IV) oxide C. Ammonia D. Carbon (IV) oxide Correct Answer: Option C – Ammonia Users Also Read These:Downward-growing pinnacles that hang from the roofs…A gas that is collected by upward delivery is likely to be?A source of sound produces waves in air of…The demand curve for a commodity is downward sloping…A to eater to glass to air to water to glass to air.…