Question

Name the material whose layer is deposited on copper vessel when it is exposed to moist air for longer duration. Write the colour of the layer.

Answer 1

Aиѕωєя :- The moist air contains oxygen which will reacts with copper to produce copper oxide . normally the copperoxide will be in green color . this is why the copper vessel is exposed to moist air for long time.it acquires a dull green coating.