Other Chapters For 10th

  • 10th-class civics Chapter 7

    The Constitution of India provides for a Council of Ministers, with the Prime Minister as its...
  • 10th-class civics Chapter 9

    The High Court The Constitution of India provides a High Court for each state. At present...
  • 10th-class civics Chapter 4

    The concept of Non-Aligned Movement came into existence during the Cold War period, when Asia...
  • 10th-class civics Chapter 3

    Human Rights Human rights are the basic rights, to which every single individual is entitled....
  • 10th-class civics Chapter 2

    World Health Organisation (WHO) It is the specialised agency for health establishment on...
  • 10th-class civics Chapter 1

    United Nations Organisation (UNO) Destructive and horrifying experiences of the two World...
  • 10th-class economics Chapter 13

    Modern governments need to borrow from different sources when current revenue falls short...
  • 10th-class economics Chapter 12

    Public expenditure is spending made by the government of a country on collective needs and...
  • 10th-class economics Chapter 11

    Public Revenue is an important concept of Public Finance. It refers to the income of the...
  • 10th-class economics Chapter 9

    A central bank is an independent national authority that conducts monetary policy, regulates...

10th Class Chapter No 23 - Sulphuric Acid in science for ICSE

Properties of Sulphuric Acid:

  • Sulphuric Acid has molecular formula H2SO4and molecular mass of 98.
  • 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 oxidising agent.
  • Sulphuric acid is also a powerful dehydrating agent and is used to remove a molecule of water from many organic compounds.
  • Sulphuric Acid, H2SO4, is a dibasic acid because it contains two hydrogens atoms which ionise in aqueous solution to become Hydrogen Ions, H(+).

H2SO4    ==>    2 H(+)    +    SO4(2 -)

Preparation of Sulphuric Acid:

The Contact Process is used for manufacturing sulphuric acid and fuming sulphuric acid from sulphur dioxide, which is made by burning sulphur or by roasting sulphide ores and oxygen (in the form of air) which combine to form sulphur trioxide in the presence of a catalyst.

Manufacture of Sulphuric Acid by Contact process

Sulphuric acid is produced from sulphur, oxygen and water via the conventional contact process or the wet sulphuric acid process (WSA).

The Contact process can be divided into five stages:

  1. Combining of sulphur and dioxygen (O2) to form sulphur dioxide
  2. Purifying the sulphur dioxide in a purification unit
  3. Adding an excess of dioxygen to sulphur dioxide in the presence of the catalyst vanadium pentoxide, under temperatures of 450 °C and pressure of 1-2 atm
  4. The sulphur trioxide formed is added to sulphuric acid which gives rise to oleum(disulphuric acid)
  5. The oleum is then added to water to form sulphuric acid which is very concentrated.


There are mainly two types of tests are performed for Sulphuric Acid

  1. Test for Dilute sulphuric acid.
  2. Test for Concentrated sulphuric acid.


Uses of sulphuric acid

  1. Sulphuric acid, because of its wide applications, is referred as the king of chemicals.
  2. It is used in the manufacture of:
  • Fertilisers like ammonium sulphate and superphosphate.
  • Dyes, pigments and paints.
  • Explosives such as TNT.
  • Other important chemicals like hydrochloric acid, nitric acid, phosphoric acid and sodium carbonate.
  1. It is used in the refining of petroleum.
  2. As a pickling agent.
  3. As a laboratory agent, and a dehydrating and oxidising agent.


Posted in 10th on July 16 2020 at 11:51 AM


  • 10th-class Science Chapter 38

    Population: Population is defined as a group of organisms of the same species living in one...
  • 10th-class Science Chapter 37

    There is a wide variety of health systems around the world, with as many histories...
  • 10th-class Science Chapter 35

    Gene: A gene is a region of DNA which is made up of nucleotides and is the molecular unit...
  • 10th-class Science Chapter 34

    Hormones are chemical messengers that are secreted by ductless glands or endocrine glands sent...
  • 10th-class Science Chapter 33

    Transpiration: Transpiration is the loss of water due to evaporation that occurs through...
  • 10th-class Science Chapter 31

    Photosynthesis: The process by which green plants are able to synthesize food from carbon...
  • 10th-class Science Chapter 29

    There are two types of reproduction systems in animals: Asexual reproduction: A type of...
  • 10th-class Science Chapter 28

    The cell is the fundamental and structural unit of life and cells are often called the...
  • 10th-class Science Chapter 27

    The nervous system controls and coordinates all activities of the body. Here are some...
  • 10th-class Science Chapter 26

    The excretory system is essential to one’s health. Its responsibility is to remove waste from...

Comments (0)

No login