NCERT Exemplar Class 10 Science

The NCERT Exemplar Class 10 Science book is a highly useful tool for students who want to strengthen concepts and go beyond basic preparation. While the NCERT textbook builds your foundation, the Exemplar helps you apply those concepts in more advanced ways. 

On this page, you will find chapter-wise NCERT Class 10 Science Exemplar PDFs, along with sample questions, solutions, and smart strategies. Everything is designed to help you use this resource effectively and feel confident before exams.

Download Class 10 NCERT Science Exemplar 

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NCERT Class 10 Science Exemplar: Chapter-wise

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NCERT Exemplar Class 10 Science 2026-27 Overview

The NCERT Exemplar Class 10 Science book is a supplementary practice resource by NCERT that helps students gain deeper clarity in Physics, Chemistry, and Biology.

Based on the latest CBSE curriculum, it includes advanced questions focused on real-life applications and reasoning.

These questions are useful for scoring high marks and building a strong base for higher studies.

Key highlights: NCERT Class 10 Science Exemplar

• Covers all chapters from the NCERT Class 10 Science syllabus
• Includes MCQs, assertion-reason questions, case-based questions, short and long answer types
• Focuses on application-based and HOTS (Higher Order Thinking Skills) questions
• Strengthens conceptual understanding across Physics, Chemistry, and Biology
• Improves scientific reasoning and analytical thinking
• Highly recommended for board exam preparation

The NCERT Class 10 Science Exemplar PDF is available in both full-book format and chapter-wise downloads, allowing students to focus on individual topics after completing the textbook.

Class 10 Science Chapter-wise Exemplar Questions

The NCERT Class 10 Science Exemplar contains a mix of conceptual, numerical, and reasoning-based questions. These questions are designed to test your understanding rather than rote learning.

Below are some sample questions with solutions:

Chapter 1: Chemical Reactions and Equations

Q1. Why should a magnesium ribbon be cleaned before burning?

Solution: Magnesium ribbon forms a layer of magnesium oxide when exposed to air. This layer prevents proper burning. Cleaning removes the oxide layer, allowing magnesium to burn efficiently.

Q2. Identify the type of reaction: Zn + 2HCl → ZnCl₂ + H₂

Solution: This is a displacement reaction where zinc displaces hydrogen from hydrochloric acid.

Chapter 2: Acids, Bases and Salts

Q1. What happens when sodium hydrogen carbonate is heated?

Solution: 2NaHCO₃ → Na₂CO₃ + H₂O + CO₂. It decomposes to form sodium carbonate, water, and carbon dioxide.

Q2. Why do acids conduct electricity?

Solution: Acids produce H⁺ ions in aqueous solutions, which carry electric current.

Chapter 3: Metals and Non-metals

Q1. Why are ionic compounds hard and brittle?

Solution: They have strong electrostatic forces between ions, making them hard. When force is applied, layers shift, causing repulsion and brittleness.

Q2. Why do metals have high melting points?

Solution: Due to strong metallic bonds between atoms, a large amount of energy is needed to break them.

Chapter 4: Carbon and Its Compounds

Q1. Why does carbon form covalent bonds?

Solution: Carbon has 4 valence electrons and cannot gain or lose 4 electrons easily, so it shares electrons to form covalent bonds.

Q2. What is homologous series?

Solution: A group of organic compounds with the same functional group and similar chemical properties, differing by CH₂ units.

Chapter 5: Periodic Classification of Elements

Q1. Why does atomic size decrease across a period?

Solution: Due to increasing nuclear charge, electrons are pulled closer to the nucleus.

Q2. Why do elements in the same group have similar properties?

Solution: They have the same number of valence electrons.

Chapter 6: Life Processes

Q1. What is the function of stomata?

Solution: Stomata help in gas exchange and transpiration in plants.

Q2. What is the role of bile juice?

Solution: It emulsifies fats and makes the medium alkaline for enzyme action.

Chapter 7: Control and Coordination

Q1. What are reflex actions?

Solution: Quick, automatic responses to stimuli controlled by the spinal cord.

Q2. What is the role of hormones?

Solution: Hormones regulate body functions like growth, metabolism, and reproduction.

Chapter 8: How do Organisms Reproduce

Q1. What is binary fission?

Solution: Asexual reproduction where one organism divides into two identical organisms.

Q2. Why is reproduction important?

Solution: It ensures continuity of species and transfer of genetic information.

Chapter 9: Heredity and Evolution

Q1. What is a dominant trait?

Solution: A trait that expresses itself even in the presence of a recessive allele.

Q2. What is natural selection?

Solution: Process where organisms better adapted to the environment survive and reproduce.

Chapter 10: Light – Reflection and Refraction

Q1. State laws of reflection. 

Solution: First Law: Angle of incidence = Angle of reflection. Second Law: Incident ray, reflected ray, and normal lie in the same plane

Q2. What is refractive index?

Solution: Ratio of speed of light in vacuum to speed in a medium.

Chapter 11: Human Eye and Colourful World

Q1. What is myopia?

Solution: A defect where distant objects appear blurred; corrected using concave lenses.

Q2. Why does sky appear blue?

Solution: Due to scattering of shorter wavelengths (blue light) by atmosphere.

Chapter 12: Electricity

Q1. Define electric current.

Solution: Rate of flow of electric charge. I = Q/t

Q2. What is Ohm’s law?

Solution: V = IR, where V is voltage, I is current, and R is resistance.

Chapter 13: Magnetic Effects of Electric Current

Q1. What is an electromagnet?

Solution: A temporary magnet created by passing current through a coil.

Q2. What is Fleming’s left-hand rule?

Solution: It gives the direction of force on a current-carrying conductor in a magnetic field.

Chapter 14: Sources of Energy

Q1. What are renewable sources?

Solution: Sources that are replenished naturally like solar and wind energy.

Q2. Why is solar energy important?

Solution: It is clean, renewable, and reduces pollution.

Chapter 15: Our Environment

Q1. What is a food chain?

Solution: Sequence showing transfer of energy from one organism to another.

Q2. What are decomposers?

Solution: Organisms that break down dead matter into simpler substances.

Chapter 16: Sustainable Management of Natural Resources

Q1. What is sustainable development?

Solution: Using resources in a way that meets present needs without harming future generations.

Q2. Why should we conserve forests?

Solution: Forests maintain ecological balance, biodiversity, and climate stability.

How to Use NCERT Science Exemplar 

Using the NCERT Exemplar for self-testing can completely change the way you prepare for exams. Instead of just practicing questions, you can use it to evaluate your understanding, identify weak areas, and build real exam confidence.

• Attempt 10-15 mixed questions from one chapter in a single sitting without checking solutions.
• Set a timer to simulate real exam pressure and improve time management.
• Shuffle questions instead of solving them in order to train your brain for unpredictable exams.
• After solving, categorize your answers into correct, doubtful, and incorrect.
• Focus on understanding mistakes rather than just correcting them.
• Write a one-line takeaway for every wrong answer to strengthen concepts.
• Reattempt the same questions after 2–3 days without revision to test retention.
• Track your performance regularly to measure improvement over time.

This approach turns Exemplar into a powerful self-testing tool and helps you prepare smarter, not just harder.

NCERT Exemplar Science Vs NCERT Science Textbook 

The table below depicts the difference between NCERT Science Textbook and NCERT Exemplar for Science  Class 10. By understanding the difference, the contribution of solving science exemplar would be clear. 

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Best Strategy to Use NCERT Science Exemplar

Using the NCERT Science Exemplar the right way can make a big difference in your preparation. Instead of just solving questions randomly, a clear strategy helps you build accuracy, improve understanding, and tackle tricky problems with confidence. Below a simple and effective approach to get the best out of it:

• Start only after finishing the NCERT textbook to ensure your basics are clear.
• Solve questions chapter-wise alongside your school syllabus to stay aligned.
• Attempt questions on your own first; avoid checking solutions too quickly.
• Focus more on understanding the logic behind answers rather than memorising them.
• Mark difficult and tricky questions for quick revision before exams.
• Practice MCQs, assertion-reason, and case-based questions regularly.
• Maintain a separate notebook for mistakes and key concepts.
• Revise Exemplar questions multiple times, especially before tests.
• Don’t try to complete everything at once. Try to be consistent with small daily practice.
• Use Exemplar as a testing tool to check your preparation level.

FAQs

Q1. What is NCERT Exemplar for Class 10 Science?

Ans. It is a supplementary book by NCERT that contains advanced and application-based questions designed to improve conceptual understanding.

Q2. Are NCERT Exemplar questions important for Class 10 board exams?

Ans. Yes, they are very important as they help students prepare for higher-order and tricky questions.

Q3. Is the NCERT Class 10 Science Exemplar available chapter-wise?

Ans. Yes, students can download both full-book and chapter-wise PDFs.

Q4. Are Exemplar questions harder than textbook questions?

Ans. Yes, they are generally more challenging and focus on deeper understanding.

Q5. When should I solve NCERT Exemplar questions?

Ans. After completing the NCERT textbook chapters to strengthen your concepts and improve problem-solving skills.