Question

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 and Copper carbonate
c) Copper carbonate and Copper sulphate
d) Copper hydroxide and Copper nitrate​

Answer 1

Answer:

option (b)

Explanation:

when copper vessel is exposed to air turns green in colour due to the corrosion it is so because the metal react with most and atmospheric gases to form a mixture of copper carbonate and copper hydroxide which key is a green colour to the surface of copper vessel

Answer 2

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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

C]Copper Carbonate and Copper Sulphate.

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