How can you prepare Cl2 from HCl and HCl from Cl2? Write reactions only.
1) By Deacon’s process Cl2 can be prepared from HCl in
presence of CuCl2
4HCl + O2 → 2Cl2 + 2H2O
2) Cl2 on treating with water gives HCl
Cl2 + H2O → HCl + HOCl