Chemistry
Grade-10
Easy
Question
At the anode what is the product formed in the electrolytic reduction of alumina:
- Carbon dioxide, Oxygen
- Oxygen
- Fluorine
- Oxygen, fluorine
Hint:
At anode Oxidation Takes Place.
The correct answer is: Oxygen
- Thick graphite rods are suspended at anode
- Reaction will be 6O2- + 12e-→ 6[O]
3O + 3O → 3O2
- Anode is oxidised 2C + O2 → 2CO
2CO + O2 → 2CO2
3O + 3O → 3O2
2CO + O2 → 2CO2