In Which of the Following Reactions Does Hydrogen Peroxide Act

question 54

Multiple Choice

In which of the following reactions does hydrogen peroxide act as a reducing agent?

• A)PbS(s)+ 4 H₂O₂(aq)→ PbSO₄(s)+ 4 H₂O(l)
• B)H₂O₂(aq)+ 2 H⁺(aq)+ 2I^-(aq)→ 2 H₂O(l)+ I₂(aq)
• C)5 H₂O₂(aq)+ 2 MnO₄^-(aq)+ 6 H⁺(aq)→ 8 H₂O(l)+ 5 O₂(g)+ 2 Mn²⁺(aq)
• D)2 Fe²⁺(aq)+ H₂O₂(aq)+ 2 H⁺(aq)→ 2 Fe³⁺(aq)+ 2 H₂O(l)