Explain the process involved in corrosion

CBSE Class 10 CBSE Class 10 Science
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  1. Corrosion is an electrochemical phenomenon.

  2. In corrosion, a metal is oxidised by loss of electrons generally to oxygen and results in the formation of oxides.

  3. During corrosion at a particular spot on the surface of an object made of iron, oxidation takes place and that spot behaves as anode.

  4. Electrons released at this anodic spot move through the metal and go to another spot and reduce oxygen.