Question

Identify the species that was reduced in the titration reaction. Justify answer in terms of oxidation number 6h+(aq)+2mno4−(aq)+5h2c2o4(aq)→10co2(g)+8h2o(l)+2mn2+(aq)

Answer 1

Step-by-step explanation:

Reaction given

6 H⁺ + 2 MnO₄⁻ + 5 (COOH)₂ = 10CO₂ +8H₂O + 2 Mn⁺²

Oxidation number of Mn in MnO₄⁻

= x - 4 x 2 = -1

x = 8 -1

+ 7

Oxidation no of Mn in Mn⁺² = +2

So its oxidation no is decreased from + 7 to + 2 . Hence it is reduced.