Who discovered single replacement reaction?

Single replacement reactions were not discovered by a single individual, but rather understood and classified as part of the broader study of chemical reactions over time. These reactions, where one element replaces another in a compound, were recognized by early chemists such as Antoine Lavoisier and John Dalton in the 18th and early 19th centuries. The systematic study of chemical reactions, including single replacement, evolved with advancements in chemistry and the development of the Periodic Table.