Chemistry - Redox Reactions Question with Solution | TestHub

To find the value of $X\cdot Y$, we classify whether H₂O₂ acts as a reducing agent ($X$) by getting oxidized to O₂, or as an oxidizing agent ($Y$) by getting reduced to H₂O/OH⁻:

Reducing Agent ($X=8$): In reactions (a), (b), (e), (g), (h), (i), (j), and (l), H₂O₂ reduces species like HIO₄, MnO₄⁻, Ce⁴⁺, Ag₂O, [Fe(CN)₆]³⁻, Au³⁺, I₂, and HOCl.

Oxidizing Agent ($Y=4$): In reactions (c), (d), (f), and (k), H₂O₂ oxidizes species like Fe²⁺ to Fe³⁺, PbS to PbSO₄, SO₂ to SO₄²⁻, and Mn²⁺ to MnO₂.

Value of $X\cdot Y=8\times 4=32$