A coating of which material is commonly deposited on iron to protect it from corrosion and formation of rust?
Zinc
Iron reacts with moisture and oxygen present in the air to form rust, which is a form of corrosion.
To protect iron from this, a thin protective coating of zinc is deposited on its surface through a process called galvanization.
The zinc coating acts as a barrier that keeps moisture and oxygen away from the iron surface, and even if the coating gets scratched, the zinc corrodes in preference to the iron, protecting it further.
Hence, zinc is the material commonly coated on iron to protect it from corrosion and rust formation.
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