Importance of corrosion:
i) Layer of protection: A layer of oxide is formed in surface corrosion which protects the inner metal from corrosion.
ii) Sacrificial anodes such as zinc is used as a preventive measure to stop corrosion of other metals
i) Layer of protection: A layer of oxide is formed in surface corrosion which protects the inner metal from corrosion.
ii) Sacrificial anodes such as zinc is used as a preventive measure to stop corrosion of other metals