1.

Write the chemical formula for bleaching powder. How is bleaching powder prepared ? For what purpose is it used in paper factories ?

Answer»

SOLUTION :`CaOCl_2` , Bleaching powder is prepared by PASSING `Cl_2` gas through dry slaked lime.
`Ca(OH)_2 + Cl_2 to CaOCl_2 + H_2O`
It is USED for bleaching wood pulp in paper FACTORIES.


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