Previous-year OPSC prelims questions on biology, physics, chemistry, computers and science & technology, followed by topic-wise practice sets in physics and chemistry that go deeper on each chapter. Start with the past questions to see what is asked, then use the practice sets to fill the gaps. Every question comes with the answer and a short explanation.
On this page
Each quiz below opens on its own page, and every question comes with an answer and an explanation.
- OPSC Prelims PYQs: Biology & Life Sciences (41 questions)
- OPSC Prelims PYQs: Physics Questions (28 questions)
- OPSC Prelims PYQs: Chemistry (31 questions)
- OPSC Prelims PYQs: Science and Tech (35 questions)
- OPSC Prelims PYQs: Computer Science (4 questions)
- Physical Quantities, Motion, Force & Friction — Practice MCQs (30 questions)
- Work, Energy, Heat, and Thermodynamics — Practice MCQs (30 questions)
- Gravitation, Solids & Fluids — Practice MCQs (30 questions)
- Waves: Mechanical & Electromagnetic — Practice MCQs (30 questions)
- Heat and Thermodynamics — Practice MCQs (50 questions)
- Wave Optics — Practice MCQs (50 questions)
- Electricity — Practice MCQs (50 questions)
- Magnetism — Practice MCQs (30 questions)
- Photoelectric Effect — Practice MCQs (25 questions)
- Atomic and Nuclear Physics — Practice MCQs (31 questions)
- Electronics and Semiconductor Devices — Practice MCQs (45 questions)
- Nanotechnology — Practice MCQs (30 questions)
- Chemical Bonding — Practice MCQs (22 questions)
- Acids, Bases and Salts — Practice MCQs (20 questions)
- Thermodynamics and Entropy — Practice MCQs (34 questions)
- Thermochemistry — Practice MCQs (18 questions)
- Periodic Classification of Elements — Practice MCQs (25 questions)
- Metals and Their Compounds — Practice MCQs (49 questions)
- Non-Metals and Their Compounds — Practice MCQs (75 questions)
- Organic Chemistry — Practice MCQs (58 questions)