Which of These Is Not an Oxidation-Reduction Reaction

question 66

Multiple Choice

Which of these is not an oxidation-reduction reaction?

• A) CuO(s) + H₂(g) → Cu(s) + H₂O(l)
• B) CO₂(g) + H₂(g) → CO(g) + H₂O(l)
• C) I ⁻ (aq) + NO₃ ⁻ (aq) → NO(g) + I ₂ (s)
• D) Mn(OH)₂(s) + MnO₄ ⁻ (aq) → MnO₄^{2 −} (aq)
• E) HCl(aq) + NaOH(aq) → NaCl(aq) + H₂O (l)

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