Which element undergoes oxidation in the given reaction, 3Fe 3 O 4 (s) + 8 Al (s) → 9 Fe (s)+ 4Al 2 O 3 (s)?

Step-by-step solution

In the given reaction, aluminum (Al) is oxidized because it loses electrons to form aluminum ions. Aluminum goes from its elemental form (Al) to aluminum ions in aluminum oxide (Al₂O₃).