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1. How is bleaching powder prepared? 

2. Give the composition of bleaching powder.

1 Answer

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Best answer

1. By treating Cl2 with dry slaked lime.

2Ca(OH)2 + 2CI2 → Ca(OCI)2  + CaCI2 + 2H2O

2. Ca(OCI)2 CaCI2 .Ca(OH)2 .2H2O.

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