In which of the following reactions,H_2O_2 ac | vedclass

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(A) reducing agent is a substance that reduces another species and itself gets oxidized. In the reaction $PbO_{2(s)} + H_2O_{2(aq)} \longrightarrow Pb

Vedclass · Accepted Answer

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

Vedclass · Answer

(A) reducing agent is a substance that reduces another species and itself gets oxidized. In the reaction $PbO_{2(s)} + H_2O_{2(aq)} \longrightarrow PbO_{(s)} + H_2O_{(l)} + O_{2(g)}$,the oxidation state of oxygen in $H_2O_2$ changes from $-1$ to $0$ (in $O_2$),which indicates oxidation. Therefore,$H_2O_2$ acts as a reducing agent in this reaction. In the other options $(B, C, D)$,$H_2O_2$ acts as an oxidizing agent because it gets reduced to $H_2O$ (oxygen oxidation state changes from $-1$ to $-2$).

In which of the following reactions,$H_2O_2$ acts as a reducing reagent?

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