Paheli bought a statue made of copper. To her surprise it acquired a dull green coating after a couple of months. Explain the reason.

Paheli bought a statue made of copper. To her surprise it acquired a d

1.	Paheli bought a statue made of copper. To her surprise it acquired a dull green coating after a couple of months. Explain the reason.
Answer» The green material is a mixture of copper hydroxide and copper carbonate formed due to reaction of copper with moist air (water, oxygen and carbon dioxide).