4 H2SO4 + 2 CrO → 4 H2O + Cr2(SO4)3 + SO2
This is an oxidation-reduction (redox) reaction:
SVI + 2 e- → SIV (reduction)
2 CrII - 2 e- → 2 CrIII (oxidation)
H2SO4 is an oxidizing agent, CrO is a reducing agent.
Reactants:
Products:
- H2O – Water, oxidane
- Cr2(SO4)3 – Chromium(III) sulfate
- 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.]