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Answered

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Name the compound of calcium used for disinfecting water. Give its chemical formula.​

Sagot :

ajinems

Answer: the compound used in disinfecting water is called Bleaching powder. It's chemical formula is CaOCl2 ( calcium oxychloride).

Explanation:

Water is a universal solvent. It is polar in nature and dissolves most inorganic solutes and some polar organic solutes to form aqueous solutions. Rain, springs, well, rivers, lakes and sea are natural sources of water.

Most natural water contains dissolved mineral salts, suspended impurities and germs. Therefore to make it safe for domestic and industrial use, water from natural resources undergoes in water treatment tanks:

--> coagulation,

--> sedimentation,

--> filtration and

--> disinfection.

Taking a quick glance at the whole process z water is first collected in large tanks and filtered to remove large particles. Chemical like CA(OH)2 is added to coagulate the fine particles. The coagulated particles are removed by using filter beds. Then the Bleaching powder (calcium oxychloride) is added to kill the bacteria ( disinfection). Then water is ready for use.

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