In which of the following reactions H2O2 acts as a reducing agent? (1) H2O2+2H++2e-→2H2O (2) H2O2-2e-→O2+2H+ (3) H2O2+2e-→2OH- (4) H2O2+2OH—2e-→O2+2H2O |
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(a) |
(1) and (3) |
(b) |
(2) and (4) |
(c) |
(1) and (2) |
(d) |
(3) and (4) |
In which of the following reactions H2O2 acts as a reducing agent? (1) H2O2+2H++2e-→2H2O (2) H2O2-2e-→O2+2H+ (3) H2O2+2e-→2OH- (4) H2O2+2OH—2e-→O2+2H2O |
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(a) |
(1) and (3) |
(b) |
(2) and (4) |
(c) |
(1) and (2) |
(d) |
(3) and (4) |