The iron rod is covered with reddish brown layer which damages the surface of rod. Which of the following Method can be used to prevent its damage?
The layer of Zinc metal can prevent corrosion easily. Remember that, the iron rod can be protected from corrosion by coating a thin layer of zinc metal. The process of coating zinc cover over iron is called galvanization. It is used in broad way.
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[B] by covered it with layer of zinc.