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During the electrolytic refining of copper what happens at the anode?
A. copper ions gain electrons to become neutral copper atoms
B. neutral copper atoms gain electrons to become ions
C. copper ions lose electrons to become neutral atoms
D. neutral copper atoms lose electrons to become ions
Answer:
Electrolytic refining is a process of refining metals by electrolysis.
- Cathode is the negative electrode.
- Anode is the positive electrode.
- Impure Cu at the anode is purified and Cu ions are collected on the pure copper cathode as shown in the diagram below:
Therefore, the correct answer is D .
