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.
Q1. Bleaching powder releases which gas when it reacts with dilute acids?
Q2. Which of the following is used as a disinfectant in swimming pools?
Q3. Plaster of Paris is obtained by heating gypsum to about what temperature in the standard school-level preparation?
Q4. Which of the following correctly represents the chemical formula of Plaster of Paris?
Q5. A concave mirror is used in which of the following applications?
Q6. Which type of mirror always forms a virtual, erect and diminished image regardless of the position of the object?
Q7. The process by which green plants prepare their own food using sunlight is called:
Q8. Which of the following gases is produced during photosynthesis?
Q9. Newton’s first law of motion is also known as:
Q10. According to Newton’s second law of motion, force is equal to:
Q11. Which of the following is an example of Newton’s third law of motion?
Q12. The molecular mass of carbon dioxide (CO₂) is:
Q13. Which of the following has a molecular mass of 17 u?
Q14. In graphite, carbon atoms are arranged in which type of structure?
Q15. Which of the following is NOT a property of graphite?
Quiz Summary
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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.