2.1.5 Redox

• Reduction is the process of converting a complex problem or concept into a simpler form or representation.
• A redox reaction is a chemical reaction in which there is a transfer of electrons between reactants, resulting in a change in oxidation states.
• In terms of losing electrons, what is meanth by OILRIG?

  OILRIG stands for Oxidation Is Loss of electrons, Reduction Is Gain of electrons.
• What is meant by the oxidation number?

  The oxidation number is a measure of the charge that an atom has in a compound or ion.