During electrolytic reduction, the metals are deposited at the cathode (the negatively charged electrode).
- Electrolytic reduction is a type of electrolysis in which electric current is passed through an ionic substance (molten or dissolved ), producing a chemical reaction at the electrodes and decomposing the materials.
- It is used for highly electropositive metals like Potassium, which cannot get reduced in aqueous solutions.
- For example electrolysis of sodium chloride is taken
- NaCl → Na +(l) + Cl–(l)
At cathode: reduction of 2Na+(l) + e– → Na(l)
At anode: oxidation of 2Cl–(l) → Cl2(g) + 2e–
Net Reaction is written as: 2Na +(l) + 2Cl–(l) → 2Na(l) + Cl2(g)