Refining to impure copper with zinc impurity ist o be done be electrolysis using electrodes as:

Refining of impure copper with zinc impurity is to be done by electrolysis using electrods as-

When the sample of copper with zinc impurityn is to be purified by electrolysis, the appropriate electrode are .

When the sample of copper with zinc impurityn is to be purified by electrolysis, the appropriate electrode are .