Redox reactions, short for reduction-oxidation reactions, are chemical reactions in which the oxidation state of atoms involved changes. In these reactions, one reactant is oxidized (loses electrons) while another reactant is reduced (gains electrons). Redox reactions are essential in many biological processes, such as cellular respiration and photosynthesis, as well as in industrial processes like metal corrosion and battery operation. These reactions play a crucial role in maintaining the balance of electrons in chemical systems and are therefore of great interest to chemists and researchers studying various fields of chemistry and biology.