copper can best be purified by
CHEMISTRY
WAEC 1989
copper can best be purified by
- A. roasting the impure copper in black furnace
- B. Heating the oxide with coke
- C. electrolyzing a copper (II) salt solution using the impure copper as the anode
- D. converting the impure copper to trioxonitrate
Correct Answer: C. electrolyzing a copper (II) salt solution using the impure copper as the anode
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