Which of the Following Reactions Is an Oxidation-Reduction Reaction

question 25

Multiple Choice

Which of the following reactions is an oxidation-reduction reaction?

• A)NaOH + HCl → NaCl + H₂O
• B)AgNO₃ + NaCl → AgCl + NaNO₃
• C)CH₄ + 2 O₂ → CO₂ + 2 H₂O
• D)CaO + CO₂ → CaCO₃

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