Hydrogen and its compoundHard

Question

Fe3+ is reduced to Fe2+ by using -

Options

A.H2O2 in presence of NaOH
B.Na2O2 in water
C.H2O2 in presence of H2SO4
D.Na2O2 in presence of H2SO4

Solution

In acidic medium H2O2 oxidises Fe+2 to Fe+3
In alkaline solution H2O2 reduces Fe+3 to Fe+2
case-1



case-2


{Na2O2 + 2H2O → 2NOH + H2O2}

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