Question

a compound of calcium which is used for disinfecting drinking water to make free from germs. write its preparation and three uses.​

Answer 1

Answer:

The white powder used for disinfecting water is bleaching powder.

1) Its chemical name is calcium oxychloride (CaOCl2).

2) Bleaching powder is prepared by the action of chlorine on dry slaked lime [Ca(OH)2]

Ca(OH)2 + Cl2 ---->CaOCl2+ H2O

3) When exposed to air, bleaching powder reacts with carbon dioxide in the air and releases chlorine gas.

4) It is used in the textile industry to bleach cotton and linen. It is also used for bleaching wood pulp in paper industry and in laundry to bleach washed clothes.

It is used in many chemical industries as an oxidizing agent.

It is used to prepare chloroform.

Explanation:

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