How can you prepare `Cl_2` from HCl and HCI from `Cl_2`? Write reactions only.

Preparation of Cl_(2) from HCl and MnO_(2) , involves the process of:

Hydrogen from HCl can be prepared by

How will you prepare the following ? Give chemical equations also. (i) Chlorine from HCl (ii) Phosphoric acid from PCl_(5) (iii) Bleaching powder from Cl_(2)