This quiz works best with JavaScript enabled. Home > Science > Overview > General Science – Quiz 143 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books General Science Quiz 143 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Name the following molecule:NO2 A) Nitrogen oxide. B) Nitrogen dioxide. C) Mononitrogen dioxide. D) Mononitrogen oxide. Show Answer Correct Answer: B) Nitrogen dioxide. 2. When the air molecules are closed together this is called A) Rarefaction. B) Compression. C) Wavelength. D) None. Show Answer Correct Answer: B) Compression. 3. What is an essential characteristic of a hypothesis? A) It is a question. B) It comes at the end of an experiment. C) It is testable. D) It proves a theory. Show Answer Correct Answer: C) It is testable. 4. A rocket works on the principle of law of conservation of A) Energy. B) Linear momentum. C) Angular momentum. D) Mass. Show Answer Correct Answer: B) Linear momentum. 5. Which is a waste product of metabolism in humans that we breathe out? A) Carbon Dioxide. B) Carbon Monoxide. C) Oxygen. D) Sulphur Dioxide. Show Answer Correct Answer: A) Carbon Dioxide. 6. The motion of an object does not change if the net force on an object is zero A) Newton's first law of motion. B) Newton's third law of motion. C) Newton's second law of motion. D) Law of conservation of momentum. Show Answer Correct Answer: A) Newton's first law of motion. 7. An organism that obtains its food by feeding on other organisms or organic matter is the definition of what? A) Niche. B) Ecosystem. C) Producer. D) Consumer. E) Food web. Show Answer Correct Answer: D) Consumer. 8. Which animal never drinks water in its entire life? A) Camel. B) Kangaroo rat. C) Elephant. D) Hippopotamus. Show Answer Correct Answer: B) Kangaroo rat. 9. The amount of moisture in air is its- A) Density. B) Temperature. C) Humidity. D) Pressure. Show Answer Correct Answer: C) Humidity. 10. (2) Which is the ultimate source of energy? A) L.P.G. B) Coal. C) The Sun. D) Natural Gas. Show Answer Correct Answer: C) The Sun. 11. When water is cooled, does it contract or expand? A) Contract. B) Expand. C) Melt. D) Freezes. Show Answer Correct Answer: B) Expand. 12. Diamond is the ..... element A) Purest. B) Mixture. C) Compound. D) Non of them. Show Answer Correct Answer: A) Purest. 13. When naming ionic compounds with transition metals you need to include roman numerals to show the..... of the metal ..... A) Atomic number. B) Mass number. C) Charge. D) Ionization energy. Show Answer Correct Answer: C) Charge. 14. Barium A) Bar. B) Bruh. C) Br. D) Ba. Show Answer Correct Answer: D) Ba. 15. All in row1 path for electricity1 light goes out and the circuit is broken A) Nearsighted (myopia). B) Farsighted \{hyperopia). C) Series Circuit. D) Parallel Circuit. Show Answer Correct Answer: C) Series Circuit. 16. Name the vitamin which is not found in any non-vegetarian food? A) Vitamin B12. B) Vitamin C. C) Vitamin D. D) Vitamin K. Show Answer Correct Answer: C) Vitamin D. 17. Who discovered outer space? A) Galileo. B) Stephen Hawking. C) Albert Einstein. D) Edwin Hubble. Show Answer Correct Answer: D) Edwin Hubble. 18. A summary of the experiment that includes whether hypothesis was right or wrong A) Hypothesis. B) Results. C) Conclusion. D) Independent Variable. Show Answer Correct Answer: C) Conclusion. 19. Disrupting other students in the laboratory with horseplay in the lab is: A) Helpful. B) Allowed. C) Dangerous. D) The quickest way to do a job. Show Answer Correct Answer: C) Dangerous. 20. Paper burning is an example of: A) Chemical change. B) Physical change. Show Answer Correct Answer: A) Chemical change. ← PreviousNext →Related QuizzesScience QuizzesGeneral Science Quiz 1General Science Quiz 2General Science Quiz 3General Science Quiz 4General Science Quiz 5General Science Quiz 6General Science Quiz 7General Science Quiz 8General Science Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books