In which of the following reactions does H_2O | vedclass

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(A) $H_2O_2$ acts as a reducing agent when it gets oxidized to $O_2$ (oxidation state of $O$ changes from $-1$ to $0$).In reaction $A$: $PbO_{2(s)} +

Vedclass · Accepted Answer

$PbO_{2(s)} + H_2O_{2(aq)} 	o PbO_{(s)} + H_2O_{(l)} + O_{2(g)}$

Vedclass · Answer

(A) $H_2O_2$ acts as a reducing agent when it gets oxidized to $O_2$ (oxidation state of $O$ changes from $-1$ to $0$).In reaction $A$: $PbO_{2(s)} + H_2O_{2(aq)} 	o PbO_{(s)} + H_2O_{(l)} + O_{2(g)}$,the oxidation state of $O$ in $H_2O_2$ increases from $-1$ to $0$,indicating that $H_2O_2$ is acting as a reducing agent.In reactions $B$,$C$,and $D$,$H_2O_2$ acts as an oxidizing agent because it gets reduced to $H_2O$ (oxidation state of $O$ changes from $-1$ to $-2$).

In which of the following reactions does $H_2O_2$ act as a reducing agent?

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