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CBSE 9th Assertion Reason Questions: The Central Board of Secondary Education (CBSE) Class 9 exams 2025-26 are around the corner and it’s time for students to revise and prepare all the questions. One such type of question that has been asked in the final term question person are assertion-reason based questions.
A list of assertion-reason based questions for CBSE Class 9 Science is provided here. The questions are given chapter-wise for Physics, Chemistry and Biology. Scroll and prepare for the Science examination.
CBSE Class 9 Science Assertion Reason Questions for 2025 Exams
Here is the list of questions provided for Class 9 Science. Scroll and solve them for ensuring a better score in the final exams.
Direction: In each of the following questions, a statement of Assertion is given followed by a corresponding statement of Reason. Of the statements, mark the correct answer as
π What are Assertion and Reason Questions?
Assertion (A): A statement of fact related to a concept.
Reason (R): A supporting statement that explains the assertion.
Students must choose the correct option:
Both A and R are true, and R is the correct explanation of A.
Both A and R are true, but R is not the correct explanation of A.
A is true, but R is false.
A is false, but R is true.
π Chapter-Wise Assertion & Reason Questions for Class 9 Science
Hereβs a breakdown of important chapters with downloadable PDFs for each:
πΉ Chapter 1: Matter in Our Surroundings
Assertion: Particles of matter have space between them.
Reason: The rate of diffusion increases with a decrease in temperature.
π Download PDF β Matter in Our Surroundings A&R Questions
πΉ Chapter 2: Is Matter Around Us Pure?
Assertion: Mixtures can be separated by physical methods.
Reason: Filtration is a chemical separation process.
π Download PDF β Is Matter Around Us Pure A&R Questions
πΉ Chapter 3: Atoms and Molecules
Assertion: Law of conservation of mass holds true in chemical reactions.
Reason: Mass is neither created nor destroyed during a chemical reaction.
π Download PDF β Atoms and Molecules A&R Questions
πΉ Chapter 4: Structure of the Atom
Assertion: Electrons revolve around the nucleus in fixed orbits.
Reason: Rutherford discovered the nucleus.
π Download PDF β Structure of the Atom A&R Questions
πΉ Chapter 5: The Fundamental Unit of Life
Assertion: Cell is the structural and functional unit of life.
Reason: All cells contain a cell wall.
π Download PDF β The Fundamental Unit of Life A&R Questions
πΉ Chapter 6: Tissues
Assertion: Xylem transports water in plants.
Reason: Phloem transports food in plants.
π Download PDF β Tissues A&R Questions
πΉ Chapter 7: Motion
Assertion: Displacement is always equal to distance.
Reason: Displacement is the shortest distance between two points.
π Download PDF β Motion A&R Questions
πΉ Chapter 8: Force and Laws of Motion
Assertion: A body at rest will remain at rest unless acted upon by an external force.
Reason: This is Newtonβs First Law of Motion.
π Download PDF β Force and Laws of Motion A&R Questions
πΉ Chapter 9: Gravitation
Assertion: Objects fall freely towards the Earth due to gravity.
Reason: Acceleration due to gravity is the same for all objects near the Earthβs surface.
π Download PDF β Gravitation A&R Questions
πΉ Chapter 10: Work and Energy
Assertion: Work is said to be done when a force is applied on an object and the object is displaced.
Reason: If there is no displacement, no work is done.
π Download PDF β Work and Energy A&R Questions
πΉ Chapter 11: Sound
Assertion: Sound requires a medium for propagation.
Reason: Sound can travel through a vacuum.
π Download PDF β Sound A&R Questions
πΉ Chapter 12: Improvement in Food Resources
Assertion: Crop variety improvement helps in increasing yield.
Reason: It is achieved by hybridisation and genetic modification.
π Download PDF β Improvement in Food Resources A&R Questions
π Free PDF Download β Complete Booklet
For the convenience of students, we have compiled all Assertion & Reason questions for Class 9 Science (2025β26)into one PDF.
π Download Full PDF β CBSE Class 9 Science Assertion & Reason Questions
π― Benefits of Practicing Assertion and Reason Questions
Enhances conceptual clarity.
Improves logical reasoning and critical thinking.
Prepares students for CBSE Board Exams and competitive exams like NTSE, Olympiads, and JEE Foundation.
β FAQs
1. Are Assertion and Reason questions important for Class 9 Science 2025β26 exams?
Yes, CBSE has introduced more competency-based questions, and Assertion & Reason types are frequently asked.
2. How many Assertion & Reason questions come in Class 9 Science exams?
Usually, 2β3 questions per chapter may be expected, either in periodic tests or final exams.
3. Where can I download chapter-wise Assertion & Reason PDFs?
You can download them from the links provided above or access them through CBSE study material portals.
4. Are these questions useful for Olympiad preparation?
Yes, Assertion & Reason questions strengthen reasoning skills, which are useful for Olympiads and competitive exams.
5. Do Assertion & Reason questions carry negative marking in school exams?
No, in CBSE Class 9 exams, there is no negative marking for these questions.
