Solve this multiple-choice question and choose the correct option.

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Materials/coatings: Galvanised iron sheets — identify the metal used for the protective coating. Focus on the standard anti-corrosion layer. Choose the correct metal.

Difficulty: Easy

Zinc
Tin
Aluminium
Chromium

Correct Answer: Zinc

Explanation:

Given data

Product: Galvanised iron (GI) sheets.

Concept/Approach Galvanizing means coating iron/steel with zinc, which provides sacrificial protection (zinc corrodes preferentially), thereby preventing rusting of the base metal.

Final Answer Zinc

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