Question

Why is iron coated with zinc or magnesium ?
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Answer 1

Answer:

Here's your answer

Explanation:

The iron or steel object is coated in a thin layer of zinc. This stops oxygen and water reaching the metal underneath - but the zinc also acts as a sacrificial metal . Zinc is more reactive than iron, so it oxidises in preference to the iron object.

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Answer 2

Answer:

to prevent rusting

Explanation:

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