Which of the Following Is Not an Oxidation−reduction Reaction

question 71

Multiple Choice

Which of the following is not an oxidation−reduction reaction?

• A) CaCO₃(s)→ CaO(s)+ CO₂(g)
• B) 2 Na(s)+ Br₂(g)→ 2 NaBr(g)
• C) Fe(s)+ 2 HCl(aq)→ FeCl₂(aq)+ H₂(g)
• D) 2 C(s)+ O₂(g)→ 2 CO(g)
• E) 2 H₂O( )→ 2 H₂(g)+ O₂(g)

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