1
Question
Name the method used to refine copper metal.
Name the method used to refine copper metal.
Open in App
Solution
The correct option is D Electrolytic method
In electrorefining step, impurities like Fe, Ni, Zn get dissolved in the solution while Au, Ag and Pt are deposited as anode mud below the anode and 100% copper is obtained from crude copper.
Copper is refined using an electrolytic method. Anodes are of impure copper and pure copper strips are taken as cathode.
The electrolyte is acidified solution of copper sulphate and the net result of electrolysis is the transfer of copper in pure form from the anode to the cathode.
Anode: Cu → Cu2+ + 2 e–Cathode: Cu2+ + 2e– → Cu
Option D is correct.
In electrorefining step, impurities like Fe, Ni, Zn get dissolved in the solution while Au, Ag and Pt are deposited as anode mud below the anode and 100% copper is obtained from crude copper.
Copper is refined using an electrolytic method. Anodes are of impure copper and pure copper strips are taken as cathode.
The electrolyte is acidified solution of copper sulphate and the net result of electrolysis is the transfer of copper in pure form from the anode to the cathode.
Anode: Cu → Cu2+ + 2 e–
Cathode: Cu2+ + 2e– → Cu
Option D is correct.
Suggest Corrections
0
Similar questions