(i) Give a method for the manufacture of hydrogen peroxide and explain the reactions involved therein.
(ii) Illustrate oxidising, reducing and acidic properties of hydrogen peroxide with equations.
(i) Give a method for the manufacture of hydrogen peroxide and explain the reactions involved therein.
(ii) Illustrate oxidising, reducing and acidic properties of hydrogen peroxide with equations.
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1 Answer
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(i) Industrial preparation: H2O2 is prepared by the auto-oxidation of 2- alkylanthraquinols
2-ethylanthraquinol ↔ H2O2+ oxidised product
2Fe2+ (aq)+2H+ (aq)+H2O2 → Fe3 (aq)+2H2O (l)
PbS (s)+4H2O2 (l) → PbSO4 (s)+4H2O (l)
(ii) Reducing action of hydrogen peroxide
2MnO4-+6H++5H2O2→ 2Mn2++8H2O+5H2
HOCl+H2O2 → H3O++Cl-+O2
Oxidising action of hydrogen peroxide
2Fe2++H2O2→ 2Fe3++2OH-
Mn2++H2O2 → Mn4++2OH-
Acidic properties of H2O2
I2+H2O2+2OH-→ 2I-+2H2O+H2
2MnO4-+3H2O2→ 2MnO2+3O2+2H2O+2OH-
Similar Questions for you
H2S has minimum boiling point.
PbS + 4H2O2->PbSO4 + 4H2O.
Volume strength of H2O2 = Molarity * 11.2
HF molecules are associated with strong intermolecular hydrogen bonding hence its boiling point is the highest
Compound Melting Point (K)
HF 190
HCl 159
HBr 185
HI
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