Concise Selina Solutions for Class 10 Chemistry Chapter 11 Sulphuric Acid

A colourless dense, oily corrosive liquid produced by the reaction of sulphur trioxide with water and used in accumulators and the manufacture of fertilizers, dyes, and explosives. Sulphuric acid (British spelling), also known as oil of vitriol, is a mineral acid composed of the elements sulphur, oxygen and hydrogen, with molecular formula H2SO4. Sulphuric acid is also a key substance in the chemical industry. Sulphuric acid is called 'King of Chemicals' because of its extensive use in a large number of industries. Sulphuric acid is a powerful protonating agent. It is also a moderately strong oxidizing agent. Sulphuric acid is also a powerful dehydrating agent and is used to remove a molecule of water from many organic compounds.

  • H2SO4 is a colourless or slightly yellow viscous liquid with a pungent odour. It has a density of 1.84 g/mL, the boiling point of 337 °C, and the melting point of 10 °C. "Concentrated" sulphuric acid is 98% in water, and is the most stable form.
  • The major use of sulfuric acid is in the production of fertilizers, e.g., superphosphate of lime and ammonium sulfate. It is widely used in the manufacture of chemicals, e.g., in making hydrochloric acid, nitric acid, sulfate salts, synthetic detergents, dyes and pigments, explosives, and drugs.