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When a copper vessel is exposed to moist air for long, it acquires a dull green coating. The green material is a mixture of

a) Copper oxide and Copper Nitrate

b) Copper hydroxide & Copper Carbonate

c) Copper carbonate and Copper sulfate

d) Copper hydroxide and Copper Nitrate

1 Answer

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Best answer

b) Copper hydroxide & Copper Carbonate

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