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The reaction in which hydrogen peroxide ...

The reaction in which hydrogen peroxide acts as a reducting agent is .

A

`PbS+4H_2O_2 rarr PbSO_4 +4H_20`

B

`2KI + H_2O_2 rarr 2KOH + l_2`

C

`2FeSO+4 +H_2SO_4 +H_2O_2 rarr Fe_2(SO_4)_3 + 2H_2O`

D

`Ag_2O+H_2O_2 rarr 2Ag +H_2O + O_2`

Text Solution

Verified by Experts

The correct Answer is:
D
(d) In `Ag_2O` (O.N. of Ag+1) in Ag the O.N. is 0. There is gain of electrons, hence `H_2O_2`, is reducing.
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Knowledge Check

  • The reaction in which hydrogen peroxide acts as a reducing agent is

    A
    `PbS+4H_(2)O_(2) to PbSO_(4)+4H_(2)O`
    B
    `2KI+H_(2)O_(2) to 2KOH+I_(2)`
    C
    `2FeSO_(4)+H_(2)SO_(4)+H_(2)O_(2) to Fe_(2)(SO_(4))_(3)+2H_(2)O`
    D
    `Ag_(2)O+H_(2)O_(2) to 2Ag+H_(2)O+O_(2)`

  • The reaction in which hydrogen perioxide acts as a reducing agent is

    A
    `PbS+4H_(2)O_(2) to PbSO_(4)+4H_(2)O`
    B
    `2KI+H_(2)O_(2) to 2KOH+I_(2)`
    C
    `2FeSO_(4)+H_(2)SO_(4)+H_(2)O_(2) to Fe_(2)(SO_(4))_(3)+2H_(2)O`
    D
    `Ag_(2)O+H_(2)O_(2) to 2Ag+H_(2)O+O_(2)`

  • The reaction in which hydrogen poeroxide is a reducing agent is:

    A
    `Pbs+4H_(2)O_(2)rarrPbSO_(4)+4H_(2)O`
    B
    `2KI+H_(2)O_(2)rarr2KOH+I_(2)`
    C
    `H_(2)SO_(3)+H_(2)O_(2)rarrH_(2)sO_(4)+H_(2)O`
    D
    `Ag_(2)O+H_(2)O_(2)rarr2Ag+H_(2)O+O_(2)`

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    In which of the following reaction hydrogen peroxide is a reducing agent

    Oxidation and reduction always occur simultaneously. These reactions which involve simultaneous oxidation and reduction are called redox reactions. Therefore, every redox reaction is made up of two half reactions. One half reaction represents oxidation and other half reaction represents the reduction. Oxidation and reduction of an atom, molecule or ion can also be defined in terms of electrons. The substance that gains electrons, is reduced to a lower oxidation state and acts as an oxidising agent. Similarly, the substance which loses electrons is oxidised to a higher oxidation state, and is called a reducing agent. In which of the following reactions hydrogen peroxide is acting as a reducing agent?

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