The 'Galvanization' of iron is done by coating it with a thin layer of:

Correct answer: Zinc

Explanation: ✅ Correct Answer: (B) Zinc 📚 Explanation: Galvanization is a process of applying a protective zinc coating to steel or iron to prevent rusting. Zinc acts as a sacrificial anode; even if the coating is scratched, the zinc will corrode instead of the iron. The most common method is hot-dip galvanizing, where parts are submerged in a bath of molten hot zinc. This significantly extends the lifespan of iron structures.