Correct option is D
Galvanization is the process of coating a metal, usually iron or steel, with a layer of
zinc to protect it from corrosion and rusting. Zinc acts as a sacrificial layer that corrodes instead of the underlying metal.
Information Booster:
· Hot-dip galvanization is the most common method.
· Zinc protects both physically (coating) and chemically (sacrificial anode).
· Galvanized iron is widely used in roofing and fencing.
· Zinc is a highly reactive metal that forms a protective oxide layer.
· Other anti-corrosion methods include electroplating and anodizing.
