A. roasting the impure copper in a blast furnace
B. heating the oxide with coke
C. electrolyzing a copper (ll) salt solution using the impure copper as the anode
D. converting the impure copper to a trioxonitrate (V)
E. washing the impure copper with sodium hydroxide solution
Correct Answer:
Option C – electrolyzing a copper (ll) salt solution using the impure copper as the anode
![What mass of copper will be deposited by the liberation of Cu2+ when 0.1F of electricity flows through an aqueous solution of a copper (ll) salt? [Cu = 64] What mass of copper will be deposited by the liberation of Cu2+ when 0.1F of electricity flows through an aqueous solution of a copper (ll) salt? [Cu = 64]](https://erudites.ng/wp-content/plugins/contextual-related-posts/default.png)
