Question

a white substance having a strong smell of chlorine is used to clean water in water storage tank identify the substance write its chemical name and the reaction for its preparation

Answer 1

substance is bleaching powder

chemical name-CAOCL2

preparation-when chlorine gas is passed through dry slaked lime bleaching powder is formed

                   CA(OH) + Cl2 -------------> CAOCL2 + H2O

Answer 2

A white substance having a strong smell of chlorine is used to clean water in water storage tank chemical name and reaction for its preparation.

Explanation:

• The substance is bleaching powder .

• Chemical name: $CaOCl_2$

• Preparation: Chlorine gas is produced during electrolysis of aqueous sodium chloride. This chlorine gas is used for the manufacture of bleaching powder. Bleaching powder is produced by the action of a chlorine on slaked lime.

                              $Ca(OH) + Cl_2 \rightarrow CaOCl_2 + H_2O$

• Uses: It is used for bleaching cotton and linen in the textile industry for bleaching wood pulp in paper industry for bleaching washed clothes in laundry.  Used as an oxidizing agent in many chemical industries.  Used for disinfecting drinking water to make it free of germs.  Used as a reagent in the preparation of chloroform.

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