5 H2C2IO2 + 6 KMnVIIO4 + 9 H2SO4 6 MnIISO4 + 3 K2SO4 + 10 CIVO2 + 14 H2O

This is an oxidation-reduction (redox) reaction:

6 MnVII + 30 e- 6 MnII (reduction)

10 CI - 30 e- 10 CIV (oxidation)

Change the oxidation states