Use the References to access important values if needed for this question. A sta

Question

Use the References to access important values if needed for this question. A standard galvanic cell is constructed in which a Cd2+ | Cd half cell acts as the cathode. 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 Cd2+|Cd compartment to the other compartment.

2. Cd is oxidized at the cathode.

3. Cd2+ is reduced at the cathode.

4. As the cell runs, anions will migrate from the Cd2+|Cd compartment to the other compartment.

5. The anode compartment could be Hg2+|Hg. Submit AnswerRetry Entire Group7 more group attempts remaining

Explanation / Answer

Ans: C (Cd2+ is reduced at the cathode)

reduction happens at the cathode i.e the cathode reaction is Cd2+ + 2e- -> Cd

This is a reduction reaction as the positive charge is being reduced by gaining electrons. Therefore, yes this reaction occurs at the cathode because the RED CAT ate AN OX. Reduction occurs at the cathode, oxidation occurs at the anode.

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