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Question:

How can you prepare Cl2 from HCl and HCl from Cl2? Write reactions only.

Answer:

(i) Cl2 can be prepared from HCl by Deacon's process.

 

(ii) HCl can be prepared from Cl2 on treating it with water.

Cl2        +       H2O        →                 HCl              +          HOCl

                                               Hydrochloric acid         Hypochlorous acid


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