how is iron used automobile parts prevented from corrosion?
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One of the most common techniques used to prevent the corrosion of iron is applying a protective coating of another metal that is more difficult to oxidize. Faucets and some external parts of automobiles, for example, are often coated with a thin layer of chromium using an electrolytic process.
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So, iron cans used for food items are electroplated with tin to prevent spoilage from contact with iron. — Iron used in bridges and automobiles is electroplated with a coating of zinc to protect it from corrosion and formation of rust.
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