What is corrosion ? What is done to prevent corrosions of metals?
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10
Answer:
Three things are necessary for corrosion to occur: an electrolyte, an exposed metal surface, and an electron acceptor. Corrosion can be prevented by removing one of these conditions. Coating a metal surface with paint or enamel provides a barrier between the metal and the moisture in the environment.
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36
Answer:
When some metals are exposed to moisture, acids etc., they tarnish due to the formation of respective metal oxide on their surface. This process is called corrosion.
Corrosion can be prevented by painting the surface, oiling, greasing, galvanizing, chrome plating or making alloys.
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