Question

Which is the reducing reagent in the equation?

MnO4(-) + 8H(+) + 5Fe(2+) → Mn(2+) + 5Fe(3+) + 4H2O

Answer 1

`Fe^(2+)`

Explanation:

A reducing reagent is always oxidized during a redox reaction.

During oxidation, an atom loses electrons or oxygen, and then increases its oxidation number.

From here, I see that iron(II) has been oxidized into iron(III), and is therefore the reducing reagent in this equation.