Question

Give a brief account of the preparation of the oxoacids of chlorine.

How are oxoacids of chlorine prepared?

Answer 1

1. Hypochlorous acid (HClO) is prepared by passing chlorine gas in cold dilute sodium hydroxide solution.
2. Chlorous acid (HClO₂) is obtained by treating barium chlorite with dilute sulfuric acid.
3. Chloric acid (HClO₃) is prepared by treating barium chlorate with dilute sulfuric acid.
4. Perchloric acid (HClO₄) is made by electrolysis of a solution of sodium perchlorate.
5. All acids are generally prepared by acidifying their corresponding salts.