Copper in copper oxide does not liberate `SO_2` gas while copper in bronze evolves `SO_2` gas with conc. `H_2SO_4`. However, for making statues, copper is used in the form of bronze but not metallic copper or copper oxide. Explain why the same copper has such varied properties

Explanation

(i)Composition of bronze
(ii) Comparison of chemical properties of constituents of bronze and CuO.
(iii) Comparison of physical properties of constituents of bronze with CuO and Cu.