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The Half-Reaction That Should Occur at the Anode During Electrolysis $\rarr$

Question 139

Question 139

Multiple Choice

The half-reaction that should occur at the anode during electrolysis of an aqueous potassium bromide solution is

A) Br₂ + 2e^- $\rarr$ 2Br^-.
B) Na $\rarr$ Na⁺ + e^-.
C) Na⁺ + e^- $\rarr$ Na.
D) 2Br^- $\rarr$ Br₂ + 2e^-.
E) 2H₂O $\rarr$ O₂ + 4H⁺ + 4e^-.

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