Question

what is sacrificial protection

Answer 1

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In order to prevent iron from rusting, we use the method of galvanization.

In galvanization, we apply a coating of zinc over iron. The zinc being reactive, reacts with oxygen to form a passive layer. And thus iron is protected.

In this case, the zinc sacrifices itself to protect iron. Thus it is called sacrificial protection.

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Answer 2

Explanation:

sacrificial protection is a protection of iron and steel against corrosion by using more reactive metal