An assertion reason type question consists of two statements; an assertion (statement of fact) and a reason (explanation for the given assertion). First, you have to determine whether each statement is correct or not.
CBSE Board Exam is on the way, so you must practice some good Assertion Reason questions of Class 10 Science to boost your preparation to score 95+% on Boards. In this post, you will get Assertion Reason Questions for All Chapters which will come in the CBSE Class 10 Science Board Exams.
We have provided here assertion reason questions for the class 10 science Board exam. You can read these chapter-wise assertion reason questions for your Board science paper. These questions are prepared by subject experts and experienced teachers. An answer key is also provided so that you can check the correct answer for each question. Practice these questions to score well in your Final exams.
Chapterwise Assertion Reason Questions for Class 10 Science
- Assertion and Reason Questions for Chapter 1 Chemical Reactions and Equations
- Assertion and Reason Questions for Chapter 2 Acids, Bases, and Salts
- Assertion and Reason Questions for Chapter 3 Metals and Non-metals
- Assertion and Reason Questions for Chapter 4 Carbon and Its Compounds
- Assertion and Reason Questions for Chapter 5 Periodic classification of elements
- Assertion and Reason Questions for Chapter 6 Life Processes
- Assertion and Reason Questions for Chapter 7 Control and Coordination
- Assertion and Reason Questions for Chapter 8 How do organisms reproduce?
- Assertion and Reason Questions for Chapter 9 Heredity and Evolution
- Assertion and Reason Questions for Chapter 10 Light Reflection and Refractions
- Assertion and Reason Questions for Chapter 11 The Human Eye and The Colorful World
- Assertion and Reason Questions for Chapter 12 Electricity
- Assertion and Reason Questions for Chapter 13 Magnetic effects of current
- Assertion and Reason Questions for Chapter 15 Our Environment
Books for Class 10 Science Board Exams
Strictly as per the new term-wise syllabus for Board Examinations to be held in the academic session 2022-23 for class 10 Multiple Choice Questions based on new typologies introduced by the board- Stand- Alone MCQs, MCQs based on Assertion-Reason Case-based MCQs. Include Questions from CBSE official Question Bank released in April 2022 Answer key with Explanations What are the updates in the book: Strictly as per the Term wise syllabus for Board Examinations to be held in the academic session 2022-23. Chapter-wise -Topic-wise Multiple choice questions based on the special scheme of assessment for Board Examination for Class 10th.
Class 10 Science Syllabus
Theory Marks – 80
| Unit No. | Unit | Marks |
| I | Chemical Substances-Nature and Behaviour | 25 |
| II | World of Living | 25 |
| III | Natural Phenomena | 12 |
| IV | Effects of Current | 13 |
| V | Natural Resources | 05 |
| Total | 80 | |
| Internal assessment | 20 | |
| Grand Total | 100 |
Unit I: Chemical Substances – Nature and Behaviour
Chemical reactions: Chemical equation, Balanced chemical equation, implications of a balanced chemical equation, types of chemical reactions: combination, decomposition, displacement, double displacement, precipitation, endothermic exothermic reactions, oxidation, and reduction.
Acids, bases, and salts: Their definitions in terms of furnishing of H+ and OH– ions, General properties, examples, and uses, neutralization, the concept of pH scale (Definition relating to logarithm not required), the importance of pH in everyday life; preparation and uses of Sodium Hydroxide, Bleaching powder, Baking soda, Washing soda and Plaster of Paris.
Metals and nonmetals: Properties of metals and non-metals; Reactivity series; Formation and properties of ionic compounds; Basic metallurgical processes; Corrosion and its prevention.
Carbon compounds: Covalent bonding in carbon compounds. Versatile nature of carbon. Homologous series. Nomenclature of carbon compounds containing functional groups (halogens, alcohol, ketones, aldehydes, alkanes, and alkynes), the difference between saturated hydrocarbons and unsaturated hydrocarbons. Chemical properties of carbon compounds (combustion, oxidation, addition, and substitution reaction). Ethanol and Ethanoic acid (only properties and uses), soaps, and detergents.
Unit II: World of Living
Life processes: ‘Living Being’. The basic concept of nutrition, respiration, transport, and excretion in plants and animals.
Control and coordination in animals and plants: Tropic movements in plants; Introduction of plant hormones; Control and coordination in animals: Nervous system; Voluntary, involuntary, and reflex action; Chemical co-ordination: animal hormones.
Reproduction: Reproduction in animals and plants (asexual and sexual) reproductive health – need and methods of family planning. Safe sex vs HIV/AIDS. Childbearing and women’s health.
Heredity and Evolution: Heredity; Mendel’s contribution- Laws for inheritance of traits: Sex determination: brief introduction: (topics excluded – evolution; evolution and classification and evolution should not be equated with progress).
Unit III: Natural Phenomena
Reflection of light by curved surfaces; Images formed by spherical mirrors, center of curvature, principal axis, principal focus, focal length, mirror formula (Derivation not required), magnification.
Refraction; Laws of refraction, refractive index. Refraction of light by the spherical lens; Image formed by spherical lenses; Lens formula(Derivation not required); Magnification. Power of a lens.
Human eye: Functioning of a lens in the human eye, defects of vision and their corrections, applications of spherical mirrors and lenses.
Refraction of light through a prism, dispersion of light, scattering of light, and applications in daily life (excluding the color of the sun at sunrise and sunset).
Unit IV: Effects of Current
Electricity: Electric current, potential difference, and electric current. Ohm’s law; Resistance, Resistivity, Factors on which the resistance of a conductor depends. Series combination of resistors, parallel combination of resistors, and its applications in daily life. Heating effect of electric current and its applications in daily life. Electric power, Interrelation between P, V, I, and R.
Magnetic effects of current: Magnetic field, field lines, field due to a current-carrying conductor, field due to current-carrying coil or solenoid; Force on the current-carrying conductor, Fleming’s Left Hand Rule, Direct current. Alternating current: frequency of AC. Advantage of AC over DC. Domestic electric circuits.
Unit V: Natural Resources
Our environment: Eco-system, Environmental problems, Ozone depletion, waste production, and their solutions. Biodegradable and non-biodegradable substances.
FAQs on CBSE Class 10 Science Assertion Reason Questions
You can practice and download a PDF of Class 10 Science Assertion and reason Questions on our website for free.
If you rush through the assertion questions, you may not be able to answer them correctly. So, read the question carefully to understand the assertion statement. Then, figure out whether the reason statement is true or not. Once you feel you have found the correct answer, read both the given statements once more.
An assertion reason type question consists of two statements; an assertion (statement of fact) and a reason (explanation for the given assertion). First, you have to determine whether each statement is correct or not.
