Q. Which of the following is the common name of Phosgene? Answer:
Carbonyl chloride
Notes: Phosgene is the chemical compound with the formula COCl2. It is also known as Carbonyl dichloride. It is formed when chlorinated hydrocarbon compounds are exposed to high temperatures. Phosgene is a major industrial chemical used to make chemicals and Pesticides, but at room temperature it is a poisonous gas.