Q.

In which of the following reactions, H2O2 is acting as a reducing agent ?

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a

SO2+H2O2⟶H2SO4

b

2KI+H2O2⟶2KOH+I2

c

PbS+4H2O2⟶PbSO4+4H2O

d

Ag2O+H2O2⟶2Ag+H2O+O2

answer is D.

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Detailed Solution

H2O2 if self be oxidized to O2
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In which of the following reactions, H2O2 is acting as a reducing agent ?