Lakhmir Singh Solutions Class 10 Chemistry Solutions for Exercise in Chapter 2 - Chapter 2 Acids, Bases and Salts
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(a) 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.
(e) State a peculiar (or remarkable) property of plaster of Paris.
(f) Name the substance obtained by the action of chlorine on solid (dry) slaked lime.
(a) Sodium carbonate is used for softening hard water. Commonly called washing soda.
(b) Bleaching powder is a calcium compound that is used for disinfecting the drinking water supply.
(c) Sodium carbonate is a metal compound that has detergent and cleansing properties.
(d) Bleaching powder or calcium oxychloride ( CaOCl2) is used for removing the colour.
(e) Plaster of Paris has the property of setting into hard mass on the addition of water.
(f) Bleaching powder or calcium oxychloride ( CaOCl2) is obtained by the action of chlorine on solid slaked lime.
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