Multiple choice general knowledge

For galvanizing iron which of the following metals is used?

  1. Aluminium

  2. Copper

  3. Lead

  4. Zinc
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Galvanization is the process of applying a protective zinc coating to iron or steel to prevent rusting. Zinc acts as a sacrificial metal - it corrodes preferentially, protecting the underlying iron.

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