Rusting of iron involves

Q. Rusting of iron involves

1. Oxidation
2. Reduction
3. Displacement
4. Decomposition

Answer: Oxidation

Oxidation

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·   Oxidation is any chemical reaction that involves the moving of electrons. Specifically, it means the substance that gives away electrons is oxidized.

·   When iron reacts with oxygen it forms a chemical called rust because it has been oxidized (The iron has lost some electrons.) and the oxygen has been reduced (The oxygen has gained some electrons.).

·   Oxidation is the opposite of reduction. A reduction-reaction always comes together with an oxidation-reaction. Oxidation and reduction together are called redox (reduction and oxidation). Oxygen does not have to be present in a reaction, for it to be a redox-reaction.

·   Oxidation is the loss of electrons.