Important MCQs with Answers for UPSC Science & Technology Prelims
Practising MCQs with detailed answers is non-negotiable for clearing the UPSC Prelims, where a single wrong attempt can cost precious marks due to negative marking. The tests in this course cover all critical areas of the GS Science & Technology syllabus - from space missions and nuclear reactors to biotechnology regulations and IT policies. Each question is designed to mirror the difficulty and style of actual UPSC Prelims questions, helping you develop the habit of precise, informed answer selection. Regular practice with these MCQs also reveals conceptual gaps that can then be addressed through targeted revision.
Space Technology
| Test: Space Technology - 1 10 Ques | 10 Mins |  |
| Test: Space Technology - 2 10 Ques | 12 Mins |  |
| Test: Space Technology - 3 10 Ques | 10 Mins |  |
| Test: Space Technology - 4 10 Ques | 10 Mins |  |
Biotechnology
| Test: Biotechnology - 1 15 Ques | 18 Mins |  |
| Test: Biotechnology - 2 10 Ques | 10 Mins |  |
Nuclear Energy and Renewable Energy
| Test: Nuclear Energy in India 10 Ques | 12 Mins |  |
| Test: Nuclear Reactors and Their Types 10 Ques | 10 Mins |  |
| Test: Nuclear Vision of India 10 Ques | 10 Mins |  |
| Test: Applications of Nuclear Power 10 Ques | 10 Mins |  |
| Test: Nuclear Non-Proliferation Treaty (NPT) 10 Ques | 10 Mins |  |
Topic-wise Practice Tests for UPSC GS3 Science & Technology
Topic-wise testing is one of the most efficient ways to build subject mastery before attempting full-length papers. This course offers a well-organised set of practice tests across all major themes, including:
- Space technology and ISRO missions
- Biotechnology, genetic engineering, and biosecurity
- Nuclear energy and India's nuclear doctrine
- Defence technology, cybersecurity, and quantum communication
- Information technology, AI, and digital governance
- Health, diseases, and medical science developments
By isolating one topic at a time, aspirants can benchmark their preparation and prioritise areas that need more attention before the final exam.
Defence Technology
| Test: Defence Technology - 1 10 Ques | 12 Mins |  |
| Test: Defence Technology - 2 10 Ques | 10 Mins |  |
Robotics
| Test: Laws of Robotics 10 Ques | 10 Mins |  |
| Test: Components of Robots 10 Ques | 10 Mins |  |
| Test: Robotic Process Automation (RPA) 10 Ques | 10 Mins |  |
| Test: Robotics In Agriculture 10 Ques | 10 Mins |  |
| Test: Artificial Intelligence and Robotics 10 Ques | 10 Mins |  |
Information Technology and Communication
| Test: Information Technology - 1 10 Ques | 12 Mins |  |
| Test: Information Technology - 2 10 Ques | 10 Mins |  |
Previous Year Question Papers for UPSC Science & Technology - Prelims & Mains
Solving UPSC Previous Year Questions is widely regarded as the single most important practice activity for any serious aspirant. This course includes carefully curated PYQs from both the Prelims and Mains (GS Paper 3) spanning multiple years, allowing you to identify recurring themes and examiner preferences. Mains answer-writing practice on topics like nanotechnology, stem cell therapy, space diplomacy, and Bose-Einstein statistics helps build the analytical depth required to score well in descriptive answers. Reviewing these questions with model answers also sharpens your ability to present technical knowledge in a policy-relevant, examiner-friendly format.
Latest Advances in Technology
| Test: Latest Advances in Technology 15 Ques | 18 Mins |  |
Health Issues, Diseases and Medicine
| Test: Pathological Conditions 10 Ques | 10 Mins |  |
| Test: Fundamentals of Medicine, Causes of Disease 10 Ques | 10 Mins |  |
Nanotechnology
| Test: Applications of Nanotechnology 10 Ques | 10 Mins |  |
Full-Length Mock Tests for UPSC CSE Science & Technology GS Paper 3
Attempting full-length mock tests under timed conditions is essential to develop the exam temperament needed for UPSC CSE. These tests simulate the actual exam environment and help aspirants manage time across a diverse range of questions spanning physics, chemistry, biology, space, defence, and emerging technologies. Analysing your performance after each mock test is as important as taking it - identifying weak areas and tracking improvement over time is what separates systematic preparation from passive revision. Consistent mock test practice in the months leading up to the exam significantly improves both speed and accuracy.
Physics
| Test: The Big Bang Theory 20 Ques | 20 Mins |  |
| Test: Physics - 1 20 Ques | 20 Mins |  |
| Test: Physics - 2 30 Ques | 35 Mins |  |
Chemistry
| Test: Chemistry - 1 20 Ques | 20 Mins |  |
| Test: Chemistry - 2 20 Ques | 25 Mins |  |
Biology
| Test: Plant Kingdom - 1 20 Ques | 20 Mins |  |
| Test: Biology - 1 20 Ques | 20 Mins |  |
| Test: Biology - 2 20 Ques | 20 Mins |  |
Practice Tests
| Model Practice Test- 1 25 Ques | 30 Mins |  |
| Model Practice Test- 2 25 Ques | 30 Mins |  |
| Model Practice Test- 3 25 Ques | 30 Mins |  |
Class 6
| Test: Food-Where Does It Come From 10 Ques | 10 Mins |  |
| Test: Components of Food 10 Ques | 10 Mins |  |
| Test: Fibre To Fabric 10 Ques | 10 Mins |  |
| MCQ: Light, Shadows & Reflections 10 Ques | 10 Mins |  |
| Test: Sorting Materials into Groups 10 Ques | 10 Mins |  |
| Test: Air Around Us 10 Ques | 10 Mins |  |
| Test: Changes Around Us 10 Ques | 10 Mins |  |
| Important Questions Test: Air Around Us 10 Ques | 20 Mins |  |
| MCQ: Getting to know Plants 15 Ques | 20 Mins |  |
| Important Questions Test: Getting to Know Plants 10 Ques | 10 Mins |  |
| MCQ: Body Movements 10 Ques | 10 Mins |  |
| Test: Motion & Measurement of Distances 10 Ques | 10 Mins |  |
| Test: Electricity & Circuits 15 Ques | 20 Mins |  |
| Test: Fun With Magnets 10 Ques | 10 Mins |  |
| Test: Water 20 Ques | 20 Mins |  |
Class 7
| Test: Nutrition in Plants -1 (UPSC Level) 10 Ques | 12 Mins |  |
| Test: Nutrition in Plants- 2 10 Ques | 15 Mins |  |
| Test: Nutrition in Animals (UPSC Level) 10 Ques | 12 Mins |  |
| Test: Transportation in Animals & Plants 10 Ques | 10 Mins |  |
| Test: Acids Bases & Salts 10 Ques | 10 Mins |  |
| Test: Physical & Chemical Changes 10 Ques | 15 Mins |  |
| Test: Weather Climate & Adaptations of Animals to Climate 15 Ques | 10 Mins |  |
| Important Questions Test: Weather Climate & Adaptations of Animals to Climate 20 Ques | 20 Mins |  |
| Test: Winds Storms & Cyclones 10 Ques | 10 Mins |  |
| Test: Respiration in Organisms 10 Ques | 20 Mins |  |
| Test: Soil 20 Ques | 20 Mins |  |
| Test: Reproduction in Plants 15 Ques | 15 Mins |  |
| Test: Motion & Time 10 Ques | 10 Mins |  |
| Test: Electric Current & its Effects 9 Ques | 10 Mins |  |
| Test: Light - 1 15 Ques | 15 Mins |  |
| Test: Light - 2 15 Ques | 15 Mins |  |
| Test: Water A Precious Resource 10 Ques | 10 Mins |  |
| Test: Waste Water Story 10 Ques | 10 Mins |  |
| Test: Heat (UPSC Level) 10 Ques | 12 Mins |  |
Class 8
| Test: Crop Production and Management- 1 20 Ques | 20 Mins |  |
| Test: Crop Production and Management- 2 10 Ques | 10 Mins |  |
| Test: Coal & Petroleum- 1 15 Ques | 15 Mins |  |
| Test: Coal & Petroleum- 2 10 Ques | 20 Mins |  |
| Important Questions Test: Microorganisms Friend And Foe - 2 20 Ques | 20 Mins |  |
| Olympiad Test: Microorganisms Friend & Foe 20 Ques | 20 Mins |  |
| Important Questions Test: Synthetic Fibres And Plastics 20 Ques | 20 Mins |  |
| Test: Cell Structure & Functions- 1 10 Ques | 10 Mins |  |
| Test: Cell Structure & Functions- 2 20 Ques | 20 Mins |  |
| Olympiad Test: Coal And Petroleum 15 Ques | 15 Mins |  |
| Test: Combustion and Flame- 1 (UPSC Level) 10 Ques | 12 Mins |  |
| Test: Combustion & Flame- 2 20 Ques | 20 Mins |  |
| Test: Materials: Metals & Non-Metals- 1 15 Ques | 10 Mins |  |
| Test: Materials: Metals & Non Metals- 2 20 Ques | 20 Mins |  |
| Test: Reproduction in Animals- 1 15 Ques | 20 Mins |  |
| Test: Reproduction in Animals- 2 10 Ques | 10 Mins |  |
| Test: Reaching the Age of Adolescence- 1 15 Ques | 15 Mins |  |
| Test: Reaching the Age of Adolescence- 2 10 Ques | 10 Mins |  |
| Test: Friction - 1 20 Ques | 20 Mins |  |
| Test: Friction - 2 10 Ques | 10 Mins |  |
| Test: Sound - 1 15 Ques | 15 Mins |  |
| Test: Sound - 2 10 Ques | 10 Mins |  |
| Test: Chemical Effects of Electric Current- 1 20 Ques | 20 Mins |  |
| Test: Chemical Effects of Electric Current- 2 10 Ques | 10 Mins |  |
| Test: Some Natural Phenomena 10 Ques | 10 Mins |  |
| Test: Light - 1 15 Ques | 15 Mins |  |
| Test: Light - 2 15 Ques | 15 Mins |  |
| Test: Stars & the Solar System- 1 10 Ques | 10 Mins |  |
| Test: Stars & the Solar System- 2 20 Ques | 20 Mins |  |
| Test: Conservation of Plants & Animals- 1 20 Ques | 20 Mins |  |
| Test: Conservation of Plants & Animals- 2 10 Ques | 10 Mins |  |
| Test: Force and Pressure -1 (UPSC Level) 10 Ques | 12 Mins |  |
| Test: Force & Pressure- 2 20 Ques | 20 Mins |  |
Class 9
| Test: Is Matter Around Us Pure - 1 10 Ques | 10 Mins |  |
| Test: Is Matter Around Us Pure - 2 9 Ques | 10 Mins |  |
| Test: Matter In Our Surroundings - 1 10 Ques | 10 Mins |  |
| Test: Matter In Our Surroundings - 2 15 Ques | 20 Mins |  |
| Test: Atoms And Molecules - 1 10 Ques | 10 Mins |  |
| Test : Atoms And Molecules- 2 20 Ques | 20 Mins |  |
| Test: Structure Of The Atom- 1 10 Ques | 10 Mins |  |
| Test: Structure Of The Atom- 2 10 Ques | 20 Mins |  |
| Test: The Fundamental Unit of Life- 1 15 Ques | 20 Mins |  |
| Test: The Fundamental Unit of Life - 2 20 Ques | 20 Mins |  |
| Test: Animal Tissues 20 Ques | 20 Mins |  |
| Test: Motion: 1 15 Ques | 25 Mins |  |
| Test: Motion- 2 15 Ques | 15 Mins |  |
Class 10 NCERT Physics
| Test: Dispersion of Light 10 Ques | 10 Mins |  |
| Test: Mirror Formulae 10 Ques | 15 Mins |  |
| Test: Refraction through Glass 10 Ques | 10 Mins |  |
| Test: Spherical Lens & its Power 10 Ques | 10 Mins |  |
| Test: Scattering of Light 10 Ques | 10 Mins |  |
| Test: The Human Eye & the Colorful World - 1 10 Ques | 10 Mins |  |
| The Human Eye & the Colorful World - 2 20 Ques | 20 Mins |  |
| Test: Electricity - 1 10 Ques | 10 Mins |  |
| Test: Electricity - 2 20 Ques | 20 Mins |  |
| Test: Magnetic Effects of Electric Current - 1 30 Ques | 10 Mins |  |
| Test: Magnetic Effects of Electric Current - 2 15 Ques | 20 Mins |  |
Class 10 NCERT Chemistry
| Test: Types Of Displacement Reactions 10 Ques | 15 Mins |  |
| Test: Important Chemical Compounds 10 Ques | 10 Mins |  |
| Test: Classification Early Attempts 15 Ques | 10 Mins |  |
| Test: Periodic Classification of Elements - 1 25 Ques | 25 Mins |  |
| Test: Periodic Table 25 Ques | 25 Mins |  |
| 12-Minute Test: Properties of Acids & Bases 15 Ques | 12 Mins |  |
| Test: Metals & Non-metals 20 Ques | 25 Mins |  |
| Test: Physical Properties of Metals 15 Ques | 15 Mins |  |
| Test: Chemical Properties of Metals 15 Ques | 15 Mins |  |
| Carbon & its Compounds - 1 10 Ques | 10 Mins |  |
| Carbon & its Compounds - 2 15 Ques | 20 Mins |  |
| Test: Alcohols & Carboxylic Acids 10 Ques | 10 Mins |  |
Class 10 NCERT Biology
| Test: Life Process and Nutrition 25 Ques | 25 Mins |  |
| Test: Nutrition In Plants 5 Ques | 10 Mins |  |
| Test: Nutrition In Animals 10 Ques | 10 Mins |  |
| Test: Respiration - 1 10 Ques | 10 Mins |  |
| Test: Respiration - 2 10 Ques | 10 Mins |  |
| Test: Animal Reproduction - 1 25 Ques | 25 Mins |  |
| Test: Animal Reproduction - 2 15 Ques | 15 Mins |  |
| Test: Reproductive System in Humans 10 Ques | 10 Mins |  |
| 10-Minute Test: Chemical Coordination In Plants 10 Ques | 10 Mins |  |
| Test: Conventional Sources of Energy 20 Ques | 15 Mins |  |
| Test: Heredity - 1 10 Ques | 10 Mins |  |
| Test: Origin & Evolution - 1 25 Ques | 25 Mins |  |
| Test: Origin & Evolution - 2 15 Ques | 15 Mins |  |
| Test: Our Environment- 1 10 Ques | 10 Mins |  |
| Test: Our Environment- 2 20 Ques | 20 Mins |  |
NCERT Based Tests
| Test: Class 7 General Science NCERT Based - 1 20 Ques | 25 Mins |  |
| Test: Class 7 General Science NCERT Based - 2 25 Ques | 30 Mins |  |
| Test: Class 7 General Science NCERT Based - 3 30 Ques | 36 Mins |  |
| Test: Class 7 General Science NCERT Based - 4 30 Ques | 36 Mins |  |
| Test: Class 8 General Science NCERT Based - 1 15 Ques | 18 Mins |  |
| Test: Class 8 General Science NCERT Based - 2 25 Ques | 30 Mins |  |
| Test: Class 8 General Science NCERT Based - 3 30 Ques | 36 Mins |  |
| Test: Class 8 General Science NCERT Based - 4 30 Ques | 36 Mins |  |
| Test: Class 9 General Science NCERT Based - 1 15 Ques | 18 Mins |  |
| Test: Class 9 General Science NCERT Based - 2 25 Ques | 30 Mins |  |
| Test: Class 9 General Science NCERT Based - 3 30 Ques | 36 Mins |  |
| Test: Class 9 General Science NCERT Based - 4 30 Ques | 36 Mins |  |
| Test: Class 10 General Science NCERT Based - 1 15 Ques | 18 Mins |  |
| Test: Class 10 General Science NCERT Based - 2 25 Ques | 30 Mins |  |
| Test: Class 10 General Science NCERT Based - 3 25 Ques | 30 Mins |  |
| Test: Class 10 General Science NCERT Based - 4 30 Ques | 36 Mins |  |