McqMate
| Q. |
Electrolysis of an aqueous solution of copper sulphate using copper electrodes gives |
| A. | Copper at eathode and oxygen at anode. |
| B. | Copper at anode and oxygen at cathode. |
| C. | Copper at cathode and anodes dissolve to give copper. |
| D. | Hydrogen at cathode and oxygen at anode. |
| Answer» A. Copper at eathode and oxygen at anode. | |
|
Explanation: Copper is deposited at the cathode and is dissolved at the anode. Consequently the concentration of copper ions in solution remains constant. This can be used as a method of purification of copper as only pure copper is deposited at the cathode |
|
View all MCQs in
Chemistry