A standard galvanic cell is constructed with Mg2+ | Mg and Cr3+ | Cr half cell c

Question

A standard galvanic cell is constructed with Mg2+ | Mg and Cr3+ | Cr half cell compartments connected by a salt bridge. Which of the following statements are correct? Hint: Refer to a table of standard reduction potentials.

(Choose all that apply.)

1. In the external circuit, electrons flow from the Mg2+|Mg compartment to the Cr3+|Cr compartment.

2. As the cell runs, anions will migrate from the Mg2+|Mg compartment to the Cr3+|Cr compartment.

3. Mg is oxidized at the anode.

4. The anode compartment is the Cr3+|Cr compartment.

5. The anode compartment is the Mg2+|Mg compartment.

Explanation / Answer

For the galvanaic cell Mg2+/Mg and Cr3+/Cr combination, the statements correct are,

1. In the external circuit, electrons flow from the Mg2+|Mg compartment to the Cr3+|Cr compartment.

3. Mg is oxidized at the anode.

5. The anode compartment is the Mg2+|Mg compartment.

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.