Copper becomes green when exposed to mo...

Copper becomes green when exposed to moist air for longer period because of the formation of a layer of

cupric oxide on the surface of copper

basic carbonate of copper on the surface of copper

cupric hydroxide on the surface of copper

cupric acetate on the surface of copper

Text Solution

Verified by Experts

The correct Answer is:

`3Cu+H_(2)O+CO_(2)+O_(2)rarrCuCO_(3).Cu(OH)_(2)`
( green coloured basic carbonate of copper is formed ).

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