When metallic copper comes in contact with moisture, a green powdery/ pasty coating can be seen over it. This is chemically known as [AFMC 2002]

Copper Sulphate - Copper sulphide

Copper sulphide - Copper carbonate

Copper carbonate - Copper sulphate

Copper carbonate - Copper hydroxide

When metallic copper comes in contact with moisture, a green powdery/

1.	When metallic copper comes in contact with moisture, a green powdery/ pasty coating can be seen over it. This is chemically known as [AFMC 2002]
A.	Copper sulphide - Copper carbonate
B.	Copper carbonate - Copper sulphate
C.	Copper carbonate - Copper hydroxide
D.	Copper Sulphate - Copper sulphide
Answer» D. Copper Sulphate - Copper sulphide

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When metallic copper comes in contact with moisture, a green powdery/ pasty coating can be seen over it. This is chemically known as [AFMC 2002]

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