👉 The term "ketene" in chemistry refers to a particular type of molecule that is composed of three carbon atoms, which are connected by hydrogen bonds. Ketenes are used extensively in the synthesis of organic compounds and have been studied as potential sources of renewable energy. In chemistry, a ketene is typically represented by the chemical formula C3H6, where "C" represents carbon, and "H" represents hydrogen. Ketenes can be synthesized through various methods, including reactions with hydrocarbons