In which of the following reactions H2O2 acts as a reducing agent ?
(a) H2O2 + 2H+ + 2e− → 2H2O
(b) H2O2 − 2e− → O2 + 2H+
(c) H2O2 + 2e− → 2OH−
(d) H2O2 + 2OH− − 2e− → O2 + 2H2O

Question

Accepted Answer

(b), (d). In reactions (b) and (d), H2O2 is oxidized to O2, which indicates that it is losing electrons and thus acting as a reducing agent. A reducing agent donates electrons in a chemical reaction, facilitating the reduction of another species.

In which of the following reactions H2O2 acts as a reducing agent ? (a) H2O2 + 2H+ + 2e− → 2H2O (b) H2O2 − 2e− → O2 + 2H+ (c) H2O2 + 2e− → 2OH− (d) H2O2 + 2OH− − 2e− → O2 + 2H2O

Solution

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