Iron is used in bridges and automobile to provide strength. Which metal is electroplated on
iron to protect it from corrosion?
Answers
Answer:
zinc
— Iron used in bridges and automobiles is electroplated with a coating of zinc to protect it from corrosion and formation of rust
What is corrosion?
Corrosion is the process by which something deteriorates because of oxidation, a chemical action that creates oxides or any other substance that forms a compound and makes the metal weak.
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Iron rust formula:-
4Fe + 3O2 + 6H2O → 4Fe(OH)3
Iron combines with water and oxygen to form rust or corrosion.
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Iron is one of the most abundant metal which makes the costing much lesser so the iron is used to build bridges and automobiles. It is pretty well known that iron corrodes or rusts very fast to overcome the rust so zinc or chromium is plated over the iron to overcome rust as zinc chromium does not corrode easily.
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The image of rusted and non rusted iron given below.
