2. Bases Properties and Examples

Chemical Properties of Bases

In the chemical properties of acids and bases, we now focus on bases.

  • Bases change the colour of litmus from red to blue.
  • They are bitter in taste.
  • Bases lose their basicity when mixed with acids.
  • Bases react with acids to form salt and water. This process is called Neutralisation Reaction(Read).
  • They can conduct electricity.
  • Bases feel slippery or soapy.
  • Some bases are great conductors of electricity.
  • Bases like sodium hydroxide, potassium hydroxide, etc are used as electrolytes.
  • Alkalis are bases that produce hydroxyl ions (OH-) when mixed with water.
  • Strong alkalis are highly corrosive in nature whereas other alkalis are mildly corrosive.
  • The pH value of bases ranges from 8-14.
  • Alkalis and ammonium salts produce ammonia.
  • Hydrogen gas is evolved when metals react with a base.
  • Bases are classified on the basis of strength, concentration and acidity.
  • The different kinds of acids are strong base acid, weak base acid, concentrated base, dilute base, monoacidic base, diacidic base and triacidic base.

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