NIOS Class 10 Science & Tech — Important Questions (Board Exams 2027)
NIOS Class 10 Science & Tech important questions, chapter by chapter — 1652 questions with answers across 32 chapters. For the board exams 2027.
How to use this page
Each chapter below has important questions with answers for the NIOS board exams 2027. Write your answers out before checking — reading alone doesn't build exam speed.
Chapter-wise Important Questions — 32 Chapters
A square field has side 250 m. What is its area in m^2 and then in km^2?
A wall is 3.5 m long and 120 cm high. What is its area in m^2?
A car travels 150 km in 3 h. What is its average speed in km h^-1 and in m s^-1?
What is a compound?
Which method would you use to separate salt from salt water?
What is the solvent in a sugar solution?
How many atoms are present in exactly 12 grams of carbon-12?
What is the valency of oxygen?
Which of the following represents isotopes of hydrogen?
29 more chapters below
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Where can I find NIOS Class 10 Science & Tech Important Questions?
This page has important questions for 32 chapters of NIOS Class 10 Science & Tech for the board exams 2027. Each chapter links to its own page with the full set.
How should I prepare for NIOS Class 10 Science & Tech board exams?
Go through the syllabus first, then work chapter by chapter: learn the ideas, practise questions, and revise with notes and flashcards. Leave time at the end to revise every chapter once more under timed conditions.
Which chapters of NIOS Class 10 Science & Tech should I practise first?
Start with the chapters you find hardest and the ones your teacher flags as high-weightage, then cover the rest. Each chapter page lists its important questions with answers.
Browse Important Questions by Chapter
32 chapters
Measurement In Science and Technology
Matter In Our Surroundinges
Atoms and Molecules
Chemical Reaction and Equations
Atomic Structure
Periodic Classification of Elements
Chemical Bonding
Acids, Bases and Salts
Motion and Its Description
Force and Motion
Gravitation
Sources of Energy
Work and Energy
Thermal Energy
Light Energy
Electrical Energy
Magnetic Effect of Electric Current
Sound and Communication
Classification of Living Organisms
History of Life on Earth
Building Blocks of Life Cell and Tissues
Life Processes-1 Nutrition, Transportation and Excretion
Control and Coordination
Reproduction
Heredity
Air and Water
Metals and Non-Metals
Carbon and Its Compounds
Natural Environment
Human Impact on Environment
Food Production and Animal-Husbandry
Health and Hygiene
More Science & Tech Resources
NIOS Class 10
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Syllabus
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