Oxidation Reaction, Reduction Reaction & Oxidation Number

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An oxidation reaction is a chemical reaction in which a substance loses electrons, often involving the addition of oxygen or the removal of hydrogen. It is a key component of redox (reduction-oxidation) reactions, where oxidation occurs alongside reduction.

A reduction reaction is a chemical reaction in which a substance gains electrons, often involving the removal of oxygen or the addition of hydrogen. It always occurs alongside oxidation in a redox (reduction-oxidation) reaction.

Oxidation Number (Oxidation State)
The oxidation number (or oxidation state) of an element in a chemical compound represents the number of electrons lost or gained by an atom when forming a chemical bond. It helps track electron transfer in redox reactions.

A redox reaction is a chemical reaction in which oxidation (loss of electrons) and reduction (gain of electrons) occur simultaneously. These reactions are crucial in biological processes, industrial applications, and electrochemical cells.