How is the formation of bleaching powder and Backing Soda done?
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Answer:How is the formation of bleaching powder and Backing Soda done?
(i) Bleaching powder: We know that chlorine is produced during the electrolysis of aqueous sodium chloride (brine). This chlorine gas is used for the manufacture of bleaching powder. Bleaching powder is produced by the action of chlorine on dry slaked lime [Ca(OH) 2].
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It is Prepared by Chlorine gas over dry slaked lime. Generally this method is used in large scale preparation of bleaching powder. It is prepared by reaction of cold and concentrated solution of sodium chloride with ammonia and carbon dioxide.
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