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Q.

By which of the following methods, H2O2 can't synthesized?

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a

Aerial oxidation of 2-ethyl anthraquinol

b

Addition of ice cold H2SO4 on PbO2,

c

Lewis addition of ice cold H2SO4 on BaO2,

d

Electrolysis of (NH4)2SO4 at a high current density

answer is B.

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Detailed Solution

(1) (2) H2SO4+PbO2⟶PbSO4+12O2+H2OPbO2 is not peroxy compounds) (3) H2SO4+BaO2⟶BaSO4+H2O2(4) NH42SO4⇌2NH4+SO42−At anode:2SO4−2⟶ Electrolysis S2O82−+2e¯S2O82−+2H2O⟶2SO42−+H2O2+2H⊕+2e¯
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