what is corrosion? give some examples of corrosion events.
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The gradual eating up the metals by action of air , moisture or chemical reaction on their surface is called corrosion .
Examples :- Rusting qn iron or steel .
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The process in which metals breakdown gradually by the action of air, moisture or a chemical on their surface .
Examples - Formation of oxide layer on the surface of aluminium .
Tarnishing of silver metal on exposure to hydrogen sulphide .
Formation of reddish brown layer on the surface of iron articles .
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