Tamilnadu BoardEnglish MediumSTD 8ScienceChanges Around Us.4 Marks
Question
Explain the process of corrosion and rusting.
✓
Answer
Corrosion:
Corrosion is the natural process by which a naturally pure metal converts into a more stable form of itself like hydroxide or oxide.
It is an actual degradation of the metal as it renders the metal useless of its usual metallic character.
Rusting:
Rusting is the specific name given to the corrosion of iron. Rust can be termed with the chemical formula of iron oxide with its general formula $Fe _2 O _3$.
Iron when in contact in the air moisture or water, corrodes and forms rust.
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