Class 10 CBSE Science — Important MCQs with Answers
13 chapters · 1170 practice questions
Practise Class 10 Science chapter by chapter, all in one place. Every question follows the latest NCERT syllabus and the chapters your school teaches, in the same order. The Class 10 NCERT books are unchanged for 2026-27 — the new NCF-2023 editions arrive in 2027-28, so this year's syllabus is the one you already have. There are 117 timed quizzes made from 1,170 practice questions across 13 chapters. Easy builds confidence, Medium makes it stick, and Hard stretches you toward full marks in your board years.
To score well in Class 10 Science, focus on clear concepts in physics, chemistry and biology basics. Each chapter on XamBaaz has timed Easy, Medium and Hard quizzes, several of each and never the same set twice. Marking is exam-style: +4 for a right answer, −1 for a wrong one, 0 for a skip. Every question has a one-line explanation, so you learn why an answer is right, not just which option.
Start with any chapter. Popular picks include Chemical Reactions and Equations, Acids, Bases and Salts, Metals and Non-metals, right through to Our Environment. Go chapter by chapter and watch your accuracy rise. Attempt every chapter and the Class 10 Science Subject Mastery Test unlocks — a 30-question, 60-minute mock on the whole syllabus, set like a board paper.
Class 10 Science has 3 parts: Chemistry, Biology and Physics. The chapters below are grouped the same way. Revise Chemistry (4 chapters), Biology (4 chapters), Physics (4 chapters) one part at a time, just as your school teaches them and your board paper splits them.
Practice is free to try, with no credit card and no app to install. Sign in with Google and your progress, streaks and XP save on every device. Revise Class 10 Science on your phone between classes and pick up where you left off.
Each chapter opens with free Key Concepts revision notes — a quick overview, the core concepts defined and key formulas — so you can revise Class 10 Science before you practise. Open any chapter below to read its notes and try sample questions.
Class 10 Chemistry — 4 chapters
Class 10 Biology — 4 chapters
Class 10 Physics — 4 chapters
More Class 10 Science chapters
Class 10 Science practice — FAQs
Which chapters are in Class 10 Chemistry?+
Class 10 Chemistry has 4 chapters — Chemical Reactions and Equations, Acids, Bases and Salts, Metals and Non-metals, Carbon and Its Compounds. Each one has its own free notes and timed Easy, Medium and Hard MCQ sets on this page.
Which chapters are in Class 10 Biology?+
Class 10 Biology has 4 chapters — Life Processes, Control and Coordination, How do Organisms Reproduce?, Heredity. Each one has its own free notes and timed Easy, Medium and Hard MCQ sets on this page.
Which chapters are in Class 10 Physics?+
Class 10 Physics has 4 chapters — Light — Reflection and Refraction, The Human Eye and the Colourful World, Electricity, Magnetic Effects of Electric Current. Each one has its own free notes and timed Easy, Medium and Hard MCQ sets on this page.
Which NCERT book does the Class 10 Science practice follow?+
The Class 10 NCERT books are unchanged for 2026-27 — the new NCF-2023 editions arrive in 2027-28, so this year's syllabus is the one you already have.
Is the Class 10 Science practice on XamBaaz free?+
Yes. Sign in with Google to start practising Class 10 Science free, with no credit card. A full year of unlimited access is ₹999 on a launch offer until 1 December 2026. No chapter is sold separately.
Are these Class 10 Science questions aligned to NCERT?+
Yes. Every Class 10 Science question follows NCERT and is matched to its exact chapter and topic. It is good practice for CBSE Board exams and the JEE & NEET foundation years.
How many Class 10 Science practice questions are there?+
There are 1,170 questions across 13 chapters of Class 10 Science, making 117 timed quizzes. They are split into Easy, Medium and Hard, each with an instant explanation.
Does XamBaaz have a full Class 10 Science mock test?+
Yes. Attempt every chapter and the Class 10 Science Subject Mastery Test unlocks. It is a 30-question, 60-minute mock on the whole syllabus, with exam-style negative marking.
Where can I find important Class 10 Science questions chapter-wise?+
Each chapter above is a set of the most important Class 10 Science questions, split into Easy, Medium and Hard. Open a chapter to read its Key Concepts notes and try some solved sample questions. Then sign in free to start practising, with answers and solutions.
Test yourself on the whole subject
Finish the chapters to unlock the Class 10 Science Subject Mastery Test — a 30-question mock marked like an exam.
Start practising free →Keep going
Science in other classes
Where this leads: senior-year sciences
Other Class 10 subjects
Also try board mock papers · CBSE exam guide.
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