What are the Uses of Bases Class 8?

1. Talk to Our counsellor: Give a missed call +91 9513850450 Notes NCERT Solutions Reference Books Study Resources State Boards Login / Register Online Test Home / Acid base and salt / Uses of bases or alkalies USES OF BASES OR ALKALIES Acid base and salt of Class 8 USES OF BASES/ALKALIES Caustic soda and Caustic potash: Introduction  Classification of acid  what is base  Uses of bases or alkalies  Indicators  They are extensively used in the manufacture of soaps from vegetable oils. They are used in paper industry for preparing paper pulp. They are used for making artificial fibres such as rayon, nylon, etc. They are used in the manufacture of medicines. Salts  Uses of salts in daily life  Solved questions  Calcium oxide and calcium hydroxide Exercise 1  They are used for neutralisation of acidity of the acidic soils. Calcium hydroxide suspension is used for white washing. Calcium hydroxide is used for making mortar, which is used in the construction of buildings. Calcium hydroxide is used for removing hair from the animal skins. Calcium hydroxide is used for preparing bleaching powder. Exercise 2  Exercise 3  Magnesium hydroxide and Aluminium hydroxide They are used as antacids for relieving acidity in the stomach. Comparison between properties of acids and bases : Acids Bases Sour in taste. Bitterness in taste. Change colours of indicators e.g., litmus turns from red to blue, phenolphthalein turns from colourless to pink. Change colours of indicators e.g. Litmus turns from blue to red, phenolphthalein remains colourless. Acidic properties disappear when reacts with bases. Basic properties disappear when reacts with acids No decomposition of carbonate salts by bases. Decompose carbonate salts. Get Access To Our Free Batches Now Get instant access to high-quality material Enter Mobile Number

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