Redox reaction is a chemical reaction that involves the exchange of protons and electrons between reactants to form new products. Examples of natural occurring redox reactions are;
1. Photosynthesis – electro chain in the photometer of the chlorophyll pigment.
2. ATP synthesis/respiration in the mitochondria membrane where oxygen molecule is the ultimate proton acceptor to form water.
3. oxidation of iron metal causing rusting/corrosion
4. Combustion is carbon is converted to carbon dioxide.
5. Nitrification and denitrification processes where nitrogen is converted to nitrogen oxide and vice versa