NCERT Exemplar Class 10 Science Problems with Solutions PDF Free Download

1. Chemical Reactions and Equations

This chapter helps you dive into the basics of chemical reactions, how they occur, and how to represent them with equations. The science exemplar class 10 problems will give you practice in balancing equations and understanding different types of chemical reactions, which is fundamental for chemistry.

2. Acids, Bases, and Salts

Here, you’ll explore the properties of acids, bases, and salts. The science exemplar class 10 includes problems that test your knowledge of pH, neutralisation, and the preparation of salts. These exercises are crucial for understanding how different substances interact chemically.

3. Metals and Non-metals

This chapter covers the physical and chemical properties of metals and non-metals. The exemplar problems will help you understand concepts like reactivity series, corrosion, and the uses of metals and non-metals in daily life. Practising these problems will make it easier to grasp the concepts and recall them during exams.

4. Carbon and its Compounds

Carbon compounds are the basis of organic chemistry. This chapter covers everything from the structure of carbon atoms to the different types of bonds they form. The exemplar problems are designed to test your understanding of hydrocarbons, functional groups, and the versatile nature of carbon.

5. Periodic Classification of Elements

This chapter deals with the periodic table, its history, and how elements are classified. The exemplar problems will help you get a clear understanding of the trends in the periodic table, such as electronegativity, atomic size, and valency.

6. Life Processes

In biology, this chapter is all about the essential processes that keep living organisms alive, like nutrition, respiration, and excretion. The exemplar problems will give you a deeper insight into how these processes work, which is vital for the biology section of your exams.

7. Control and Coordination

This chapter focuses on how plants and animals control and coordinate their activities. The exemplar problems include scenarios that require you to apply your knowledge of the nervous system, hormones, and plant responses to stimuli.

8. How do Organisms Reproduce?

Reproduction is a key concept in biology. This chapter covers the various methods of reproduction in plants and animals. The exemplar problems will help you understand topics like sexual and asexual reproduction, the reproductive system in humans, and the importance of reproduction in life cycles.

9. Heredity and Evolution

Heredity and evolution are crucial for understanding the genetic foundation of life. This chapter covers Mendel’s laws, genetic inheritance, and the principles of evolution. The exemplar problems are designed to enhance your grasp of these fundamental biological concepts.

10. Light – Reflection and Refraction

In physics, this chapter explains how light behaves when it meets different surfaces. The exemplar problems will help you understand concepts like the laws of reflection and refraction, and how lenses and mirrors form images. Mastering these problems is essential for scoring well in physics.

11. Human Eye and Colourful World

This chapter takes a closer look at how the human eye works and how we perceive colour. The exemplar problems will guide you through the structure of the eye, defects of vision, and phenomena like dispersion and scattering of light.

12. Electricity

Electricity is a significant part of physics. This chapter covers the basics of electric current, circuits, and Ohm’s law. The exemplar problems provide practice in calculating resistance, voltage, and power, which are important for understanding electrical concepts.

13. Magnetic Effects of Electric Current

This chapter explains how electric current and magnetism are related. The exemplar problems include questions on electromagnets, magnetic fields, and electric motors. These problems are crucial for building a solid foundation in electromagnetism.

14. Sources of Energy

Here, you’ll learn about different sources of energy, both renewable and non-renewable. The exemplar problems help you understand the advantages and disadvantages of each energy source, which is important for making informed decisions about energy use in real life.

15. Our Environment

This chapter focuses on environmental issues, ecosystems, and how human activities impact the environment. The exemplar problems will test your understanding of concepts like food chains, waste management, and the importance of biodiversity.

16. Management of Natural Resources

This final chapter emphasises the need to manage natural resources wisely. The exemplar problems include case studies and scenarios that require you to think about conservation, sustainability, and how to balance human needs with environmental protection.