Question

explain why is a layer of zinc coated over iron​

Answer 1

Answer:

Galvanising is a method of rust prevention. 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.

Answer 2

Answer:

hyyy

Explanation:

A coating office zinc is deposited on Iron bridges to protect it from corrosion and formation of Rust .......

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