Write the chemical name and formula of bleaching powder. How is it prepared?
Chemical formula of Bleaching Powder is CaOCl2 and its Chemical name is Calcium Oxychloride.
It is Prepared by Chlorine gas over dry slaked lime. Generally this method is used in large scale preparation of bleaching powder.
Ca(OH)2 + Cl2 → CaOCl2 + H2O