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Science / Acids, Bases and Salts

Science / Acids, Bases and Salts

We already know that the sour and bitter tastes of food are due to acids and bases, respectively, present in them. There are other indicators used to differentiate between acids and bases.
Also learn about the chemical nature of acids and bases.

Some of the different reactions of acids and bases are:

  • When an acid reacts with a metal, hydrogen gas is evolved and a corresponding salt is formed.
  • When a base reacts with a metal, along with the evolution of hydrogen gas a salt is formed which has a negative ion composed of the metal and oxygen.
  • When an acid reacts with a metal carbonate or metal hydrogen carbonate, it gives the corresponding salt, carbon dioxide gas and water.
  • Acidic and basic solutions in water conduct electricity because they produce hydrogen and hydroxide ions respectively.

The strength of an acid or an alkali can be tested by using a scale called the pH scale (0-14) which gives the measure of hydrogen ion concentration in a solution. A neutral solution has a pH of exactly 7, while an acidic solution has a pH less than 7 and a basic solution a pH more than 7.

Also learn about the preparation and properties of Bleaching powder, Washing soda, Plaster of paris, Common salt, Sodium hydroxide and Baking soda.

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  • Acids, Bases and Salts - SmartTest

    A SmartTest on Acids, Bases and Salts

    • Accessed by: 378 Students
    • Average Time: 00:03:03
    • Average Score: 44.07
    • Questions: 32
    • Introduction to Acids, Bases & Salts
    • Understanding the physical and chemical properties of acids
    • Salts found in Nature
    • Reaction of a Non-metallic Oxide with Base
    • Reactions of bases
    • Importance of pH in everyday life
    • Types of salts
    • Some important chemical compounds
    • Review of Acids, Bases & Salts
    • Classification of Acids
    • Reactions of acids
    • Concept of pH and Indicators
    • Classification of Bases
    • Preparation of Salts
    • Properties of salts

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