Question

Write short notes on:
Corrosion

Hint:

Corrosion prevention methods include painting, oiling, galvanization, and using alloys like stainless steel.

Answer 1

Corrosion is the gradual deterioration of metals due to chemical reactions with environmental factors like air and moisture. Rusting of iron is a common example, where iron reacts with oxygen and water to form hydrated iron oxide (\(Fe_2O_3 \cdot xH_2O\)). Corrosion weakens structures, causing damage to buildings, bridges, and pipelines. It can be prevented by painting, galvanization, or applying protective coatings.