Charvi bought a beautiful key ring made of copper . In a month or so ,it acquired a dull green coating.explain why?
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Answer:The green coating is due to the corrosion of copper over time due to the action of air and water.
Answer:The green coating is due to the corrosion of copper over time due to the action of air and water.When copper gets corroded it develops a green layer. This green layer is of copper oxide which forms as a result of rxn of copper with oxygen.
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Answer:
due to corrosion .
Explanation:
it was in the touch of moist air due which it gets croded
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