Question: what is the chemical composition of ketone?
Answer: In chemistry, a ketone /ˈkiːtoʊn/ is a functional group with the structure RC(=O)R', where R and R' can be a variety of carbon-containing substituents. Ketones contain a carbonyl group (a carbon-oxygen double bond). The simplest ketone is acetone (R = R' = methyl), with the formula CH3C(O)CH3.