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← ScienceWhich outcome occurs when an aluminum-air battery discharges?
A)Hydroxide ions form at the cathode✓
B)Aluminum ions oxidize at the cathode
C)Electrical shorting ceases spontaneously
D)Oxygen evolution stops at anode
💡 Explanation
Oxygen reduction occurs at the cathode, consuming water and producing hydroxide ions; the ELECTROCHEMICAL REACTION mechanism causes this. Therefore, excess hydroxide accumulates near the cathode, rather than aluminum oxidizing there because that occurs at the anode and no short exists.
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