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Write the preparation properties and uses of bleaching powder ( 5 marks question) |
| Answer» Properties1. It is a pale yellow powder. It has strong smell of chlorine. It is soluble in water but a clear solution is never formed due to the presence of impurities.2. On long standing it undergoes auto-oxidation into calcium chlorate and calcium chloride.3. In the presence of cobalt chloride it looses its oxygen.4. It loses its chlorine by the action of dilute acids (in excess).Uses of Bleacing PowderIt is used(i) as a disinfectant and germicide especially in the sterilization of drinking water.(ii) for manufacture of chloroform.(iii) for making wool unshrinkable.(iv) as an oxidising agent in industry. | |