KMnO4 + 2 KNO2 + 2 H2SO4 → 2 KNO3 + MnSO4 + KSO4 + 2 H2O
This is an oxidation-reduction (redox) reaction:
MnVII + 5 e- → MnII (reduction)
SVI - 1 e- → SVII (oxidation)
2 NIII - 4 e- → 2 NV (oxidation)
KMnO4 is an oxidizing agent, H2SO4 is a reducing agent, KNO2 is a reducing agent.
Warning: Unknown compound 'KSO4'