Explain briefly about electrochemical theory of corrosion
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Electrochemical theory ..
Electrochemical theory of corrosion: ... When a metal like iron is exposed to the environment according to electrochemical theory corrosion of metal takes place due to the formation of anodic and cathodic regions on the same metal surface or when the two metals are in contact with each other in a corrosive medium.
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It is the gradual destruction of materials (usually a metal) by chemical and/or electrochemical reaction with their environment. Advantages of corrosion: ... Galvanic corrosion : The principle on which primary batteries work. The maindisadvantages of corrosion of metal are: Lose of metal from the surface.
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