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Materials and processes (galvanization): Select the metal used to galvanize iron/steel to prevent rusting. Focus on the standard industrial protective coating applied to iron. Choose the correct metal.

Difficulty: Easy

Zinc
Tin
Lead
Chromium

Correct Answer: Zinc

Explanation:

Given data

Process: Galvanizing iron (or steel).
Task: Identify the metal used.

Concept/Approach
Galvanizing is the process of coating iron/steel with zinc to provide sacrificial (cathodic) protection against corrosion.

Reasoning
• Zinc forms a protective layer and corrodes preferentially, shielding the base metal. • Tin/Chromium are used in other coatings; lead is not used for modern corrosion protection here.

Final Answer
Zinc

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