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 sulphate
D. Copper hydroxide and Copper Nitrate
Answer:B
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 sulphate D. Copper hydroxide and Copper Nitrate