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Shown Below Is an Electrochemical Cell with Anode a and Cathode

Question 125

Multiple Choice

Shown below is an electrochemical cell with anode a and cathode c.Both the anode and the cathode are inert electrodes.The liquid shown in compartment b of the cell is molten potassium chloride,KCl(l) . Shown below is an electrochemical cell with anode a and cathode c.Both the anode and the cathode are inert electrodes.The liquid shown in compartment b of the cell is molten potassium chloride,KCl(l) .   -Determine whether this is a galvanic or an electrolytic cell and give the reaction occurring at the anode and the reaction occurring at the cathode. A) Electrolytic cell Anode reaction: K(s) → K<sup>+</sup>(l) + e<sup>-</sup> Cathode reaction: Cl<sub>2</sub>(g) + 2e<sup>-</sup> → 2 Cl<sup>-</sup>(l)  B) Electrolytic cell Anode reaction: 2 Cl<sup>-</sup>(l) → Cl<sub>2</sub>(g) + 2e<sup>-</sup> Cathode reaction: K<sup>+</sup>(l) + e<sup>-</sup> → K(s)  C) ..Galvanic cell Anode reaction: K(s) → K<sup>+</sup>(l) + e<sup>-</sup> Cathode reaction: Cl<sub>2</sub>(g) + 2e<sup>-</sup> → 2 Cl<sup>-</sup>(l)  D) .Galvanic cell Anode reaction: K(s) → K<sup>+</sup>(l) + e<sup>-</sup> Cathode reaction: Cl<sub>2</sub>(g) + 2e<sup>-</sup> → 2 Cl<sup>-</sup>(l)
-Determine whether this is a galvanic or an electrolytic cell and give the reaction occurring at the anode and the reaction occurring at the cathode.


A) Electrolytic cell
Anode reaction: K(s) → K+(l) + e-
Cathode reaction: Cl2(g) + 2e- → 2 Cl-(l)
B) Electrolytic cell
Anode reaction: 2 Cl-(l) → Cl2(g) + 2e-
Cathode reaction: K+(l) + e- → K(s)
C) ..Galvanic cell
Anode reaction: K(s) → K+(l) + e-
Cathode reaction: Cl2(g) + 2e- → 2 Cl-(l)
D) .Galvanic cell
Anode reaction: K(s) → K+(l) + e-
Cathode reaction: Cl2(g) + 2e- → 2 Cl-(l)

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