Question

In which of the following reactions H₂O₂ acts as a reducing agent?

1. H₂O₂ + 2H⁺+ 2e^-→ 2H₂O

2. H₂O₂- 2e^- →O₂+2H⁺

3.H₂O+2e^-  →2OH^-

4. H₂O₂ +2OH^- -2e^- →O₂+2H₂O

(a) 1,2 (b) 3,4 (c) 1,3 (d) 2,4

Answer 1

Correct option(d) 2,4

Explanation:

The reducing agent oxidises itself by undergoing oxidation through the loss of electrons. Thus, reducing agent reduces other molecules by supplying electrons to them.