Which of the following reactions is an oxidation-reduction reaction? A)NH₄HS(s)→ NH₃(g)+ H₂S(g) B)2 NaHCO₃(s)→ Na₂CO₃(s)+ H₂O(g)+ CO₂(g) C)N₂O₄(g)→ 2 NO₂(g) D)2 SO₂(g)+ O₂(g)→ 2 SO₃(g) E)2 CH₃COOH(aq)+ Ba(OH)₂(aq)→ Ba(CH₃COO)₂(aq)+ 2 H₂O(l)

Question

Quizplus · Accepted Answer

In this reaction, 2 molecules of SO2 are reacting with 1 molecule of O2, which means the oxidation state of sulfur is changing from +4 to +3. Hence, it is an oxidation-reduction reaction.

Which of the Following Reactions Is an Oxidation-Reduction Reaction