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

Identify the compound of calcium which is yellowish white powder and is used for disinfecting drinking water. Write its chemical name and formula. How is it manufactured? Write the chemical equation for the reaction involved. Also list two other uses of the compound.

Give chemical formula of marble

Name the sodium compound which is used for softening hard water.

Which one of the following is not used for disinfection of drinking water

Name two chemicals used to disinfect water.

Which gas is used in purification of drinking water?