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QUESTION:A voltaic cell is constructed using an aluminum electrode (submerged in Al(NO3)3) and an iron electrode (submerged in Fe(NO3)2). Aluminum is a stronger reducing agent than iron. Which choice correctly shows the half-reaction occurring at the cathode?ANSWER OPTIONS:[A] : Al3+ (aq) + 3e− → Al (s)[B] : Fe (s) → Fe2+ (aq) + 2e−[C] : Al (s) → Al3+ (aq) + 3e−[D] : Fe2+ (aq) + 2e− → Fe (s)

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