alleryIn galvanizing, a thin layer of which metal is applied to protect iron or steel?
AZinc
BTin
CSilver
DGold
Answer & Solution
Correct answer: A. Zinc
1. Galvanizing protects iron or steel by coating it with another metal.
2. The metal used for this thin layer is zinc.
3. Zinc is more electropositive than iron, so it corrodes first and shields the iron.
4. Tin is used in tinning, not galvanizing, so that option is wrong.
_Source: Balbharati (Maharashtra Board) Class 10 Science & Technology, Ch 8 "Metallurgy", p.116_
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