What is the reduction half-reaction for the reaction between iron(II) sulfate and potassium permanganate in a sulfuric acid solution? 5Fe2+(aq) + MnO4–(aq) + 8H+(aq) → 5Fe3+(aq) + Mn2+(aq) + 4H2O(l)     a. Fe2+(aq) + 2e– → Fe(s)   b. MnO4–(aq) + 3e– → Mn2+(aq) + 4H2O(l)   c. MnO4–(aq) + 5e– → Mn2+(aq) + SO42–(aq)   d. 5Fe2+(aq) → 5Fe3+(aq) + 5e–   e. MnO4–(aq) + 8H+(aq) + 5e– → Mn2+(aq) + 4H2O(l)

Question

What is the reduction half-reaction for the reaction between iron(II) sulfate and potassium permanganate in a sulfuric acid solution?

5Fe2+(aq) + MnO4(aq) + 8H+(aq) → 5Fe3+(aq) + Mn2+(aq) + 4H2O(l)

 

  a.

Fe2+(aq) + 2e → Fe(s)

  b.

MnO4(aq) + 3e → Mn2+(aq) + 4H2O(l)

  c.

MnO4(aq) + 5e → Mn2+(aq) + SO42–(aq)

  d.

5Fe2+(aq) → 5Fe3+(aq) + 5e

  e.

MnO4(aq) + 8H+(aq) + 5e → Mn2+(aq) + 4H2O(l)

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