Which of the following reactions correctly describe the anodic processes occurring in the Hall-Herou — Metallurgy and Isolation of Elements Chemistry Question

💡 Solution & Explanation

Reactions A and B are the primary anodic reactions where oxygen attacks the graphite. Reaction D is an alternative theory (liberation of Fluorine which then attacks $Al_2O_3$ to yield oxygen for reactions A/B). Reaction C occurs at the cathode, not the anode.