What Half-Reaction Occurs at the Cathode During the Electrolysis of Molten

question 119

Multiple Choice

What half-reaction occurs at the cathode during the electrolysis of molten potassium bromide?

• A)K(s)→ K⁺(l)+ e^-
• B)Br₂(l)+ 2e^- → 2Br^-(l)
• C)2Br^-(l)→ Br₂(l)+ 2e^-
• D)K⁺(l)+ e^- → K(s)
• E)2H₂O(l)+ 2e^- → H₂(g)+ 2OH^-(l)

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