C (s) + 2 H2SO4 (aq) → 2 SO2 (aq) + CO2 (g) + 2 H2O (l)
This is an oxidation-reduction (redox) reaction:
C0 - 4 e- → CIV (oxidation)
2 SVI + 4 e- → 2 SIV (reduction)
C is a reducing agent, H2SO4 is an oxidizing agent.
Reactants:
Products:
- SO2 – Sulfur dioxide
- Other names: Sulfurous anhydride , Sulphur dioxide , Sulfurous acid anhydride
- Appearance: Colorless gas ; Colourless gas or compressed liquefied gas with pungent odour ; Colorless gas with a characteristic, irritating, pungent odor. [Note: A liquid below 14°F. Shipped as a liquefied compressed gas.]
- CO2
- H2O – Water, oxidane