This quiz works best with JavaScript enabled. Home > Science > Chemistry > Chemistry – Quiz 22 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Chemistry Quiz 22 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Value representing the number of protons in an element A) Atomic Mass. B) Mass Number. C) Valence Electrons. D) Atomic Number. Show Answer Correct Answer: D) Atomic Number. 2. The study of matter and its processes is A) Biology. B) Geology. C) Physics. D) Chemistry. Show Answer Correct Answer: D) Chemistry. 3. In preparing coffee using the Barako coffee beans, you may pour the boiled coffee mixture into a piece of cloth. Which method is being illustrated? A) Filtration. B) Decantation. C) Distillation. D) Mechanical separation. Show Answer Correct Answer: C) Distillation. 4. What are two properties of most nonmetals? A) High ionization energy and poor electrical conductivity. B) High ionization energy and good electrical conductivity. C) Low ionization energy and poor electrical conductivity. D) Low ionization energy and good electrical conductivity. Show Answer Correct Answer: A) High ionization energy and poor electrical conductivity. 5. The heat required to raise the temperature of body by 1 K is called A) Specific heat. B) Thermal capacity. C) Water equivalent. D) None of the above. Show Answer Correct Answer: B) Thermal capacity. 6. Water is considered a A) Molecule and a compound. B) Molecule only. C) Compound only. D) None of above. Show Answer Correct Answer: A) Molecule and a compound. 7. The atomic number is the number of ..... A) Protons plus neutrons. B) Electrons and protons. C) Neutrons and electrons. D) Protons, neutrons and electrons. Show Answer Correct Answer: B) Electrons and protons. 8. Which particle has a positive charge and is located at the center of an atom? A) Proton. B) Neutron. C) Electron. D) None of above. Show Answer Correct Answer: A) Proton. 9. An atoms overall charge is A) Positive. B) Depends on its mood. C) Neutral. D) Negative. Show Answer Correct Answer: C) Neutral. 10. An element's identity is determined by the number of A) Electrons. B) Protons. C) Neutrons. D) Valence. Show Answer Correct Answer: B) Protons. 11. The high reactivity of fluorine is due to? A) Strong F - F bond. B) Availability of d-orbitals. C) Its high electro negativity. D) Small size of fluorine atom. Show Answer Correct Answer: C) Its high electro negativity. 12. According to modern atomic theory, the exact location of ..... is uncertain A) Proton. B) Electron. C) Neutron. D) None of above. Show Answer Correct Answer: B) Electron. 13. The method of concentrating the ore which makes use of the difference in density between ore and impurities is called A) Leaching. B) Liquation. C) Levigation. D) Magnetic separation. Show Answer Correct Answer: C) Levigation. 14. It is the properties that can be measured or observed without changing the materials chemical composition A) Matter. B) Phase transition. C) Physical properties. D) Chemical properties. Show Answer Correct Answer: C) Physical properties. 15. Zone refining is used for the purification of A) Ag. B) Ge. C) Au. D) Cu. Show Answer Correct Answer: B) Ge. 16. Subatomic particles that are neutral in charge A) Neutrons. B) Protons. C) Nucleus. D) Electrons. Show Answer Correct Answer: A) Neutrons. 17. When ionic compounds are named, the name of a monatomic anion will end in which of the following suffixes? A) -ic. B) -ite. C) -ate. D) -ide. Show Answer Correct Answer: D) -ide. 18. Homo nuclear molecules contain? A) Ionic bond. B) Polar bond. C) Covalent bond. D) Coordinate bond. Show Answer Correct Answer: C) Covalent bond. 19. Which two elements do all organic compounds contain? A) Carbon and hydrogen. B) Carbon and oxygen. C) Oxygen and hydrogen. D) Carbon and nitrogen. Show Answer Correct Answer: A) Carbon and hydrogen. 20. Choose one ionic compound from the following set of compounds A) HCl. B) K2S. C) NH3. D) CH4. Show Answer Correct Answer: B) K2S. ← PreviousNext →Related QuizzesScience QuizzesChemistry Quiz 1Chemistry Quiz 2Chemistry Quiz 3Chemistry Quiz 4Chemistry Quiz 5Chemistry Quiz 6Chemistry Quiz 7Chemistry Quiz 8Chemistry Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books