Disproportionation Definition in Chemistry

Disproportionation is a chemical reaction, typically a redox reaction, where a molecule is transformed into two or more dissimilar products. In a redox reaction, the species is simultaneously oxidized and reduced to form at least two different products. Disproportionation reactions follow the form: 2A → A A where A, A, and A are all different chemical species.The reverse reaction of disproportionation is called comproportionation. Examples Hydrogen peroxide converting into water and oxygen is a disproportionation reaction. 2 H2O2 → H2O O2 ï » ¿Water dissociating into H3O and OH- is an example of a disproportionation reaction that is not a redox reaction.