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CBSE Important Questions For Class 10 Science: All Chapters Here

Students must prepare CBSE Important questions for Class 10 Science board exam scheduled on 25th February, 2026. The important questions focus on key NCERT concepts, diagrams, numericals, and reasoning-based topics from Physics, Chemistry, and Biology.
CBSE Important Questions for Class 10 Science

CBSE Important Questions for Class 10 Science are based on the CBSE Class 10 syllabus 2025-26. As the CBSE Class 10 Science board exam is scheduled on 25th February, 2026, students must focus on revision and practice. 

CBSE Important Questions for Class 10 Science include most repeated PYQs selected from previous board exams and the latest CBSE syllabus. These chapter-wise questions are useful for focused board exam preparation.

Class 10 Science Important Questions Chapter-Wise (Most Repeated PYQs)

CBSE Class 10 Science includes Physics, Chemistry, and Biology, and each chapter carries exam-specific importance. Chapter-wise important questions help students revise systematically without missing any key topic.

These questions cover very short answer, short answer, long answer, numerical, diagram-based, an case-study questions as per the latest CBSE blueprint.

By practicing chapter-wise important questions, students can identify high-weightage topics, revise concepts quickly before exams, and practice writing answers for board exams:

Important Questions for Class 10 Science – Chapter-Wise Complete Solutions
Chapter 1: Chemical Reactions and Equations
Chapter 2 Acids, Bases and Salts
 Chapter 3 Metals and Non-metals
Chapter 4 Carbon and its Compounds
Chapter 5 Life Processes
Chapter 6 Control and Coordination
Chapter 7: How do Organisms Reproduce?
Chapter 8 Heredity and Evolution
Chapter 9 Light – Reflection and Refraction
Chapter 10 Human Eye and the Colourful World
Chapter 11 Electricity
 Chapter 12 Magnetic Effects of Electric Current
 Chapter 13 Our Environment
 

CBSE Class 10 Science Marking Scheme 2026

It is important for students to understand the CBSE Class 10 Science Marking Scheme 2026 as it gives a better understanding and helps students score well. CBSE awards marks for correct steps, clear explanations, labeled diagrams, and proper use of scientific terms, not just for the final answer. Here is the typologies of questions included in the CBSE Class 10th exam paper: 

Section Question Types Total Number of Questions Marks per Question Total Marks
A MCQs, Very Short Answers, and Assertion 20 1 20
B Short Answer Type Question I 6 2 12
C Short Answer Type Question II 7 3 21
D Long Answer Type Questions I 3 5 15
E Long Answer Type Questions II 3 4 12
Total   39    

CBSE Class 10 Science Last-Minute Revision Strategy for Board Exam 2026

As the CBSE Class 10 Science board exam is scheduled, students should focus on revision and not learning new topics. In the final days before the exam:

  • Revise definitions, formulas, reactions, and diagrams

  • Practice numericals and case-based questions

  • Focus on weak chapters first

  • Avoid common mistakes like skipping steps or unclear diagrams

Using CBSE Important Questions for Class 10 Science during this last phase can help students feel more confident and score well in the board exam.

 

CBSE Important Questions for Class 10 Science FAQs

What are the most important chapters for CBSE Class 10 Science 2026?

High-priority chapters include Chemical Reactions and Equations, Light – Reflection and Refraction, Human Eye and Colorful World, Electricity, Heredity and Evolution, and Our Environment. These carry repeated questions in board exams and should be revised first with important questions and sample papers.

How can I use CBSE Important Questions for Class 10 Science to prepare in the last week?

In the final days, focus on chapter-wise important questions rather than re-reading long chapters. Solve key short answers, numericals, and diagrams from each topic, and revise answers using the marking scheme to avoid losing marks for incomplete steps.

How many marks do case-based questions carry in the Class 10 Science paper?

Case-based questions are often included in modern CBSE papers and typically require integrated knowledge of concepts. Practicing them from important questions or sample papers can help you score well in this section.

What common mistakes should I avoid in the Class 10 Science exam?

Common errors include skipping steps in numericals, leaving out units, vague or unfinished diagrams, or not following the marking scheme. Practising important questions helps fix these issues.
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