Explain why an antacid tablet is taken when you suffer from acidity. calamine solution is applied on the skin when an ant bites. factory waste is neutralised before disposing it into the water bodies

cbse
acids-bases-salts
cbse-class-7-science

#1

Explain why

  • an antacid tablet is taken when you suffer from acidity.
  • calamine solution is applied on the skin when an ant bites.
  • factory waste is neutralised before disposing it into the water bodies.

Answer:

  • Acidity produces excess of acids in the stomach. An antacid contains a base like milk of magnesia which neutralises the excess acid in stomach.
  • Ant bites inject formic acid in the skin. Calamine solution contains the base zinc carbonate which neutralises the effect of acid.
  • Factory wastes are acidic in nature. These are neutralised with a base before disposing in water body to protect the aquatic life from any possible harm.