The Following Electrolytic Cell Is a Representation of the Process

question 56

Multiple Choice

The following electrolytic cell is a representation of the process used to purify copper metal. How does it work?

• A) Impure copper is oxidized at the anode, and pure copper is reduced at the cathode. Impurities dissolve into solution.
• B) Impure copper is oxidized at the cathode, and pure copper is reduced at the anode. Impurities dissolve into solution.
• C) Impure copper is oxidized at the anode, and pure copper dissolves into solution. Impurities remain on the cathode.
• D) Impure copper is oxidized at the cathode, and pure copper dissolves into solution. Impurities remain on the anode.
• E) Impure copper precipitates from solution onto the cathode, and pure copper remains on the anode.

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