(i) Identify the compound of calcium whi...

(i) Identify the compound of calcium which is yellowish powder and is used for disinfecting drinking water. Wtite its chemical name and formule. How is it manufactured ? Write the chemical equation for the reaction incolved. Also list two other used of the compound.
(ii) Write the balanced chemical equation of chlor-alkali process.

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(i) The yellowish white solid is known as bleaching powder. Chemically, it is known as calcium oxychloride or calcium hypochlorite. Its chemical formula is `CaCOCl_(2).` For its manufacture and uses, consult section `2.15.`
(ii) Chemical equation for chlor-alkali process.
`2NaCl+2H_(2)Ounderset("Current")overset("Electric")to2NaOH+H_(2)+Cl_(2)`

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