Science is asked in exams like SSC, Railways, and various UP Police Exams. It is an important subject in most competitive exams, and many questions are based on the basic concepts of Physics, Chemistry, and Biology. In this blog, you will get 100 important Science questions with answers for practice. This blog also includes 30 practice questions in quiz format to test your preparation. You can also download the free PDF eBook and prepare anytime, anywhere.
Download Science Quiz PDF
You can download the Science Quiz eBook PDF from the link given below. The PDF contains 100 important Science questions with answers for easy practice and revision. These questions are very useful for SSC, Railways and other competitive exams. Download the free eBook and start your preparation anytime, anywhere.
Practice Science Quiz for SSC, Railways, and Other Competitive Exams (Live Quiz)
Below are some science questions for your practice. Attempt them live and check your score as per the real exam marking scheme. You will get +1 for every correct answer, −0.25 for every wrong answer, and 0 for unattempted questions.
Science Quiz Questions – Part 1
Q1. The SI unit of electric charge is:
Q2. Which mirror is used as a rear-view mirror in vehicles?
Q3. The speed of light in vacuum is approximately:
Q4. Newton’s Third Law states:
Q5. The unit of power is:
Q6. Which wave does NOT require a medium to travel?
Q7. A transformer works on the principle of:
Q8. The instrument used to measure atmospheric pressure is:
Q9. Which colour of light has the highest frequency?
Q10. The phenomenon of splitting of white light into its colours is called:
Q11. The chemical formula of water is:
Q12. Which gas is released during photosynthesis?
Q13. The atomic number of Carbon is:
Q14. pH value of pure water is:
Q15. Which gas is known as “laughing gas”?
Quiz Summary – Quiz 1
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Science Quiz Questions – Part 2
Q16. Rust is chemically:
Q17. The hardest natural substance is:
Q18. Which metal is liquid at room temperature?
Q19. Ozone layer protects Earth from:
Q20. The chemical name of common salt is:
Q21. Which acid is present in vinegar?
Q22. The process of conversion of solid directly into gas is called:
Q23. LPG mainly consists of:
Q24. Which element is used in electric bulb filaments?
Q25. Baking soda is chemically:
Q26. The powerhouse of the cell is:
Q27. Which blood group is called the universal donor?
Q28. The largest organ of the human body is:
Q29. Which vitamin is produced when skin is exposed to sunlight?
Q30. DNA stands for:
Quiz Summary
What are the top Government exams in which science is asked?
Science is majorly asked in SSC and Railway’s exams under the General Awareness/General Knowledge section, mainly covering physics, chemistry and biology.
| Exam Name | Conducting Body | Stages |
| SSC CGL | Staff Selection Commission | Tier 1 (General Awareness) |
| SSC CHSL | Staff Selection Commission | Tier 1 (General Awareness) |
| SSC MTS | Staff Selection Commission | Paper 1 (General Awareness) |
| SSC GD Constable | Staff Selection Commission | CBT (General Knowledge) |
| RRB NTPC | Railway Recruitment Board | CBT 1 & CBT 2 (General Awareness) |
| RRB Group D | Railway Recruitment Board | CBT (General Science & GK) |
| RRB ALP | Railway Recruitment Board | CBT 2 (General Awareness) |
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I’m Mahima Khurana, a writer with a strong passion for creating meaningful, learner-focused content especially in the field of competitive exam preparation. From authoring books and developing thousands of practice questions to crafting articles and study material, I specialize in transforming complex exam-related topics into clear, engaging, and accessible content. I have first hand experience of 5+ months in SSC Exams. Writing, for me, is not just a skill but a way to support and guide aspirants through their preparation journey one well-written explanation at a time.