A standard galvanic cell is constructed with Fe 2+ | Fe and Zn 2+ | Zn half cell
ID: 857174 • Letter: A
Question
A standard galvanic cell is constructed with Fe2+ | Fe and Zn2+ | Zn half cell compartments connected by a salt bridge. Which of the following statements are correct? (Choose all that apply.)
A. The cathode compartment is the Fe2+|Fe compartment.
B. As the cell runs, anions will migrate from the Fe2+|Fe compartment to the Zn2+|Zn compartment.
C. Zn2+ is reduced at the cathode.
D. In the external circuit, electrons flow from the Fe2+|Fe compartment to the Zn2+|Zn compartment.
E. Zn is oxidized at the anode
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A standard galvanic cell is constructed in which a Sn2+ | Sn half cell acts as the cathode. Which of the following statements are correct? (Choose all that apply.)
A. The anode compartment could be Fe3+|Fe2+.
B. The cathode reaction is Sn2+ + 2e- -> Sn.
C. In the external circuit, electrons flow from the other compartment to the Sn2+|Sn compartment.
D. Sn is oxidized at the cathode.
E. As the cell runs, anions will migrate from the other compartment to the Sn2+|Sn compartment.
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A standard galvanic cell is constructed with F2|F- and Al3+|Al half cell compartments connected by a salt bridge. Which of the following statements are correct? (Choose all that apply.)
A. Al3+ is reduced at the cathode.
B. As the cell runs, anions will migrate from the Al3+|Al compartment to the F2|F- compartment.
C. The anode compartment is the Al3+|Al compartment.
D. The anode compartment is the F2|F- compartment.
E. In the external circuit, electrons flow from the Al3+|Al compartment to the F2|F- compartment.
Explanation / Answer
1. A. The cathode compartment is the Fe2+|Fe compartment.
B. As the cell runs, anions will migrate from the Fe2+|Fe compartment to the Zn2+|Zn compartment.
E. Zn is oxidized at the anode.
2.
A. The anode compartment could be Fe3+|Fe2+.
B. The cathode reaction is Sn2+ + 2e- -> Sn.
C. In the external circuit, electrons flow from the other compartment to the Sn2+|Sn compartment.
3. C. The anode compartment is the Al3+|Al compartment.
E. In the external circuit, electrons flow from the Al3+|Al compartment to the F2|F- compartment.
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