Which of the following reactions is an oxidation-reduction reaction? A) NH₃(g) + H₂O(l) → NH₄OH(aq) B) HCl(aq) + NaH₂PO₄(aq) → H₃PO₄(aq) + NaCl(aq) C) 2 H₂O(l) → H₃O⁺ (aq) + OH- (aq) D) Mg(OH)2(s) → Mg²⁺ (aq) + 2 OH^- (aq) E) CO(g) + H₂O(g) → CO₂(g) + H₂(g)

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In reaction E, carbon monoxide (CO) is oxidized to carbon dioxide (CO2), and water (H2O) is reduced to hydrogen gas (H2), indicating a redox process.

Which of the Following Reactions Is an Oxidation-Reduction Reaction