Name a sodium compound used for softening hard water.
(b) Which compound of calcium is used for disinfecting drinking water supply?
(c) Name a metal compound which has detergent properties (cleansing properties).
(d) Name one compound of calcium which is used for removing colour of a coloured cloth.State a peculiar (or remarkable) property of plaster of Paris.
Name the substance obtained by the action of chlorine on solid (dry) slaked lime.

Question

Name a sodium compound used for softening hard water.
(b)	Which compound of calcium is used for disinfecting drinking water supply?
(c)	Name a metal compound which has detergent properties (cleansing properties).
(d)	Name one compound of calcium which is used for removing colour of a coloured cloth.State a peculiar (or remarkable) property of plaster of Paris.
Name the substance obtained by the action of chlorine on solid (dry) slaked lime.

Accepted Answer

Sodium carbonate is used for softening hard Commonly called washing soda
Bleaching powder is a calcium compound which is used for disinfecting drinking water
Sodium carbonate is the metal compound which has detergent and cleansing property
Bleaching powder or calcium oxychloride ( CaOCl2) is used for removing the colour
Plaster of Paris has a property of setting into hard mass on addition of
Bleaching powder or calcium oxychloride ( CaOCl2) is obtained by the action of chlorine on solid slaked lime

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