HOW CAN YOU PREPARE Cl2 FROM HCl AND HCl FROM Cl2 ? WRITE THE REACTION ONLY..............!
Methods of preparing chlorine from hydrochloric acid is,
1. Preparing chlorine gas (Cl2) from potassium permanganate and concentrated hydrochloric acid.
6HCl + 2KMnO4 + 2H+ --> 3Cl2 + 2MnO2 + 4H2O + 2K+
2. The direct oxidation of hydrogen chloride with oxygen or air in the presence of copper(II) chloride (CuCl2) as a catalyst and at high temperature (about 400 °C) in the Deacon process:
4 HCl + O2 → 2 Cl2 + 2 H2O
Method of preparation of hydrochloric acid from chlorine is,
1. By combustion of Hydrogen, H2 in Chlorine, Cl2.
H2 + Cl2 ==> 2 HCl
2. A mixture of Chlorine, Cl2, and Hydrogen, H2, explodes when exposed to sunlight (activation of reaction by light) to give Hydrogen Chloride, HCl. No reaction occurs in dark.
Cl2 + H2 ==> 2 HCl