The valency of copper in `Cu_2O` is………..

The valency of copper in CuSO_(4)*5H_(2)O is

Name the valencies of copper :

What is the valency of Cu in CuO and Cu_2O ?

What is the oxidation state of : Copper is Cu_2O

what is the valency of Cu in CuSO_(4) ?

What is the valency of Cu in CuSO_(4) ?

The Atomic number of Copper is 29: Cu_2O and CuO are 2 compounds of copper. Find the oxidation state of copper in there compounds.

The valency of Cu in cuprous chloride (Cu_(2)Cl_(2)) is ………….

The chemical formula of copper pyrite is: CuFeS2, Cu2S, Cu2O, CuCO3.Cu(OH)2