(D) The oxidising property of $H_2O_2$ is demonstrated when it acts as an oxidising agent,meaning it gets reduced itself while oxidising another subst

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$2KI + H_2SO_4 + H_2O_2 \longrightarrow K_2SO_4 + I_2 + 2H_2O$

(D) The oxidising property of $H_2O_2$ is demonstrated when it acts as an oxidising agent,meaning it gets reduced itself while oxidising another substance.In option $A$,$B$,and $C$,$H_2O_2$ acts as a reducing agent,as it is oxidised to $O_2$.In option $D$,$2KI + H_2SO_4 + H_2O_2 \longrightarrow K_2SO_4 + I_2 + 2H_2O$,the oxidation state of iodine increases from $-1$ in $KI$ to $0$ in $I_2$,while the oxygen in $H_2O_2$ is reduced from $-1$ to $-2$. Thus,$H_2O_2$ acts as an oxidising agent.

Class 11 Chemistry Data Entry - Chemistry Level 0 of all question bank

Which one of the following reactions represents the oxidising property of $H_2O_2$?

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A
$2KMnO_4 + 3H_2SO_4 + 5H_2O_2 \longrightarrow K_2SO_4 + 2MnSO_4 + 8H_2O + 5O_2$
B
$2K_3[Fe(CN)_6] + 2KOH + H_2O_2 \longrightarrow 2K_4[Fe(CN)_6] + 2H_2O + O_2$
C
$PbO_2 + H_2O_2 \longrightarrow PbO + H_2O + O_2$
D
$2KI + H_2SO_4 + H_2O_2 \longrightarrow K_2SO_4 + I_2 + 2H_2O$

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Which one of the following reactions represents the oxidising property of $H_2O_2$?

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