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The Figure Shows the Electrolysis of Molten AlCl3

Question 28

Multiple Choice

The figure shows the electrolysis of molten AlCl3. What reaction occurs at the cathode of this cell? The figure shows the electrolysis of molten AlCl<sub>3</sub>. What reaction occurs at the cathode of this cell? A) AlCl<sub>3</sub>(l) → AlCl<sub>2</sub>(l) B) Cl<sup>-</sup>(l) + e<sup>-</sup> → Cl<sup>2-</sup> C) Al<sup>3+</sup>(l) + 3e<sup>-</sup> → Al(l) D) 2Cl<sup>-</sup>(l) + 2e<sup>-</sup> → Cl<sub>2</sub>(g) E) 2Cl<sup>-</sup>(l) → Cl<sub>2</sub>(g) + 2e<sup>-</sup>


A) AlCl3(l) → AlCl2(l)
B) Cl-(l) + e- → Cl2-
C) Al3+(l) + 3e- → Al(l)
D) 2Cl-(l) + 2e- → Cl2(g)
E) 2Cl-(l) → Cl2(g) + 2e-

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