Non-metals And Their Compounds


Non-metals and their compounds form a crucial part of our study in Chemistry, focusing on elements that lack the typical metallic properties. This section delves into the properties, preparations, and applications of non-metals such as hydrogen, halogens, oxygen, sulphur, nitrogen, and carbon, along with their various compounds. Understanding these elements is essential for comprehending their roles in chemical reactions and their significance in various industries.

Hydrogen is a versatile non-metal that plays a vital role in commercial production, laboratory experiments, and industrial applications. It is produced from water gas and cracking of petroleum fractions, with properties that include being flammable, colorless, and odorless. Hydrogen finds use in various sectors such as fuel cells, ammonia production, and as a reducing agent.

Halogens, represented by Chlorine, exhibit distinctive characteristics in terms of preparation, properties, and applications. Chlorine is employed in water sterilization, bleaching processes, and the manufacturing of plastics and insecticides. By exploring the laboratory and industrial methods of preparation, we gain insights into its crucial role in numerous industrial processes.

Oxygen and Sulphur underline the importance of non-metallic elements in our environment and industries. Oxygen, obtained from various sources including liquid air, showcases acidic, basic, amphoteric, and neutral oxide properties. Sulphur, with its allotropes and versatile compounds like sulphur dioxide and sulphuric acid, contributes to applications in agriculture, manufacturing, and chemical processes.

Nitrogen constitutes a significant portion of our atmosphere and is pivotal in the Haber process for ammonia production. Exploring the laboratory preparation of ammonia, nitrogen oxides, and their roles in the environment elucidates the importance of nitrogen compounds in sustaining life on Earth.

Carbon, with its allotropes like diamond and graphite, showcases diverse properties and widespread applications in industries. The study of carbon monoxide and dioxide highlights their effects on human health and the environment, emphasizing the need for sustainable practices in utilizing carbon-based compounds.

In the realm of non-metals and their compounds, understanding reagents, properties, uses, and specific tests for identification forms the basis of practical applications and theoretical foundations. By engaging with the laboratory experiments, industrial processes, and real-world significance of these elements, students gain a comprehensive understanding of the diverse roles non-metals play in chemistry and everyday life.


  1. Specify the Laboratory and Industrial Preparation of NH3
  2. Specify the Properties of CO2 and Its Uses
  3. Identify the Different Forms of Coal
  4. Specify the Products of the Destructive Distillation of Wood and Coal
  5. Identify the Properties and Uses of NH3
  6. Determine the Specific Test for Each Gas and Its Compounds
  7. Identify the Allotropes of Sulphur and Their Uses
  8. Identify Allotropes of Carbon
  9. Specify the Properties of N2O, NO, NO2 Gases
  10. Identify the Allotropes of Oxygen
  11. Determine the Reagents for the Laboratory Preparation of CO
  12. Classify the Oxides of Oxygen and Their Properties
  13. Predict Reagents for the Laboratory and Industrial Preparation of These Gases and Their Compounds
  14. Specify the Uses of Coke and Synthesis Gas
  15. Compare the Properties of These Gases and Their Compounds
  16. Examine the Relevance of Nitrogen Cycle to the Environment
  17. Predict the Reagents for Preparation, Properties and Uses of SO2 and H2S
  18. Determine Specific Tests for Cl-, SO4 2-, SO32-, S2-, NH4+, NO3-, CO2-, HCO−3
  19. Predict the Reagents for Preparation, Properties and Uses of HCl(g) and HCl(aq)
  20. Identify Reagents for the Laboratory Preparation of HNO3, Its Properties and Uses
  21. Identify the Properties of the Gases and Their Compounds
  22. Determine the Significance of Ozone to Our Environment
  23. Predict Reagents for the Laboratory Preparation of CO2
  24. Specify the Uses of Each Gas and Its Compounds
  25. Determine Their Uses
  26. Specify the Preparations of H2SO4 and H2SO3, Their Properties and Uses
  27. Predict the Effects of CO on Human

Lesson Note

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Lesson Evaluation

Congratulations on completing the lesson on Non-metals And Their Compounds. Now that youve explored the key concepts and ideas, its time to put your knowledge to the test. This section offers a variety of practice questions designed to reinforce your understanding and help you gauge your grasp of the material.

You will encounter a mix of question types, including multiple-choice questions, short answer questions, and essay questions. Each question is thoughtfully crafted to assess different aspects of your knowledge and critical thinking skills.

Use this evaluation section as an opportunity to reinforce your understanding of the topic and to identify any areas where you may need additional study. Don't be discouraged by any challenges you encounter; instead, view them as opportunities for growth and improvement.

  1. What is the commercial production method for hydrogen from water gas and cracking of petroleum fractions? A. Electrolysis of water B. Steam reforming of natural gas C. Thermal decomposition of methane D. Partial oxidation of methane Answer: B. Steam reforming of natural gas
  2. Why is chlorine considered a representative element of the halogens? A. It is the most reactive halogen B. It is the least electronegative halogen C. It has the highest atomic number in the halogen group D. It exists as a diatomic molecule in its elemental state Answer: D. It exists as a diatomic molecule in its elemental state
  3. Which process is commonly used for the industrial preparation of hydrogen chloride? A. Reaction of H2 with Cl2 B. Neutralization of HCl with NaOH C. Combustion of hydrogen in a chlorine atmosphere D. Direct synthesis of HCl gas from H2 and Cl2 Answer: D. Direct synthesis of HCl gas from H2 and Cl2
  4. What is the laboratory preparation method for oxygen? A. Decomposition of KClO3 B. Electrolysis of water C. Dehydration of H2SO4 D. Thermal decomposition of H2O2 Answer: A. Decomposition of KClO3
  5. Which allotrope of sulfur is commonly used in fungicides and pesticides? A. Rhombic sulfur B. Monoclinic sulfur C. Amorphous sulfur D. Plastic sulfur Answer: A. Rhombic sulfur
  6. How is hydrogen sulfide commonly prepared in the laboratory? A. Reaction of H2 with S B. Reaction of a metal sulfide with a strong acid C. Heating sulfurous acid D. Decomposition of H2S2 Answer: B. Reaction of a metal sulfide with a strong acid
  7. What is the source of carbon(II) oxide in exhaust fumes? A. Incomplete combustion of hydrocarbons B. Oxidation of carbon(IV) oxide C. Chemical synthesis reactions D. Decomposition of carbonates Answer: A. Incomplete combustion of hydrocarbons
  8. Which process is involved in the manufacture of synthesis gas from coke? A. Combustion B. Gasification C. Hydration D. Carbonization Answer: B. Gasification

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Past Questions

Wondering what past questions for this topic looks like? Here are a number of questions about Non-metals And Their Compounds from previous years

Question 1 Report

Which of the following elements would displace copper from a solution of copper ions?

Question 1 Report

Which of the following non-metals reacts most readily with metals?

Question 1 Report

From the diagram above, an ideal can be represented by

Practice a number of Non-metals And Their Compounds past questions