Paheli bought a statue made of copper to acquired her surprise a dull green coating after a couple ofmonths .Give ReasonAnswer
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The copper when oxidises aquires a dull greencoating. Just like rust develops on iron, patina develops on copper when the copper sulphate on the surface interacts with oxygen in the environment. Importantly, unlike rust which corrodes iron, patina actually protects and preserves the copper underneath.
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Answer:The copper when oxidises aquires a dull green coating.
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