Part I: Basic Level Questions. 

Identify each of the following statements as ‘True’ or ‘False.’ Give your reason(s) for false statements. 

1. Chemistry is a science that deals with the study of the way living things behave.

2. Every substance in the universe in which we live has its own properties by which we can distinguish it from other substances.

3. The transformation of a substance is a marked change in form, nature, or appearance.

4. The study of chemistry involves only microscopic information.

5. Organic chemistry is the study of chemicals that are not based on carbon.

Answer 

1. False 

2. True

3. True 

4. False

5. False 

Part II: Intermediary Level Questions. Fill in the blank spaces. 

6. The property of a substance is its ___________ , ___________ or ____________. 

Answer :- attribute, quality, or characteristic. 

7. __________ is the nature of something’s ingredients or constituents; the way in which a whole or mixture is made up. 

Answer :- Composition

8. The arrangement of and relations between the parts or elements of something complex is known as its ___________. 

Answer :- Structure. 

9. ___________ is a power derived from the utilization of physical or chemical resources, especially to provide light and heat. 

Answer :-  Energy 

10. ___________ is the study of macroscopic properties, atomic properties, and phenomena in chemical systems. 

Answer :-  Physical chemistry 

11. ___________ is the study of the composition of matter.

Answer :-  Analytical chemistry

Part III: Challenge Level Questions. Provide appropriate answers to the following questions. 

12. Define the terms industry, chemical industry, and chemical products. 

  • An industry is an economic activity concerned with the processing of raw materials and the manufacturing of goods in factories.

  • The chemical industries comprise the companies that manufacture inorganic- and organic-industrial chemicals, explosives, fragrances, agrochemicals, polymers and rubber, ceramic products, petrochemicals, oleochemicals, and flavors.

  • Chemical products are the resulting materials, substances, or compounds produced through chemical reactions and processes within the chemical industry. 

13. What are the roles chemistry played in production and society?

  • Chemistry is the foundation for developing new materials with specific properties needed for various applications, from clothing and construction to electronics and transportation.

  • Basis for the development of life-saving drugs 

  • Plays a vital role in understanding and addressing environmental issues

  • Essential in food production, processing, preservation, and safety

14. How does chemistry play a role in increasing comfort, pleasure, and luxuries?

  • Chemistry plays a significant role in enhancing comfort, pleasure, and luxuries through the development of materials, products, and technologies that improve daily life and well-being.

  • Example  Home Products: Detergents, soaps, plastics, paints, and cleaning agents

    • Transportation: The development of fuels like gasoline and diesel.

    • Pharmaceuticals: the development of medications that improve health and quality of life

15. Mention at least 10 chemical industries found in Ethiopia and their chemical products.

16. Which branch of chemistry has the highest scope? Why?

  • Organic chemistry is generally considered to have the highest scope due to its vast applications in diverse fields. 

  • It forms the basis for pharmaceuticals, materials science, and energy solutions, making it crucial for addressing global challenges. 

  • Its ability to create complex molecules and its relevance to life processes further solidify its importance. 

17. What are the five fields of chemistry?

  • Organic chemistry 

  • Inorganic chemistry

  • Analytical chemistry 

  • Physical chemistry, and 

  • Biochemistry 

18. What will be the future efforts of chemistry?

The future of chemistry is focused on 

  • Addressing global challenges like climate change, sustainable energy, and healthcare through advancements in green chemistry, materials science, and nanotechnology.

19. What jobs can you do with chemistry?

  • Analytical Chemist.

  • Chemical Engineer.

  • Chemical Development Engineer.

  • Lecturer.

  • Environmental Chemist.

  • Forensic Researcher.

  • Forensic Scientist.

  • Food and beverage industry 

Last modified: Tuesday, 30 September 2025, 10:14 AM