Which One of the Following Is a Redox Reaction

question 103

Multiple Choice

Which one of the following is a redox reaction?

• A) 2Na(g) + Cl₂(g)  2NaCl(s)
• B) Ba²⁺(aq) + SO₄^2-(aq)  BaSO₄(s)
• C) K₂Cr₂O₇(aq) + 2KOH(aq)  2K₂CrO₄(aq) + H₂O(l)
• D) Na₂CO₃(s) + 2HCl(aq)  2NaCl(aq) + CO₂(g) + H₂O(l)
• E) H₂O(l)  H⁺(aq) + OH^-(aq)

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