A Greenish Coating that Develops on the Copper Utensils is due to the Formation of

Answer: Cu (OH)2. CuCO3

Solution-

Cu (OH)2 is copper hydroxide

CuCO3 is a copper carbonate 

A greenish coating that develops on copper utensils is due to the formation of copper hydroxide and copper carbonate [Cu (OH)2. CuCO3]

• The greenish coating appears when copper utensils are exposed to air.

• The reaction is as follows-

• 2Cu + H2O + CO2 + O2 → Cu (OH)2 + CuCO3

• The copper utensils turn green in colour when exposed to air and this is due to corrosion.

• A mixture of copper carbonate and copper hydroxide is formed when a metal reacts with moisture, gases including atmospheric gases