This quiz works best with JavaScript enabled. Home > Science > Chemistry > Chemistry Basics > Chemistry – Quiz 32 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Chemistry Quiz 32 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Group of elements whose ending e-configuration is p5. 7 electrons in outer level, easily gain electrons. A) Noble gases. B) Halogens. C) Chalcogens. D) Nitrogen Group. Show Answer Correct Answer: B) Halogens. 2. The $ atomic\ no.$ of an element is $ 19$ and its $ mass\ no.$ is $ 39$ . What is the no. of $ neutrons$? A) 19. B) 39. C) 58. D) 20. Show Answer Correct Answer: D) 20. 3. According to periodic trends, which element would have more valence electrons than oxygen? A) Carbon (C). B) Chlorine (Cl). C) Selenium (Se). D) Phosphorus (P). Show Answer Correct Answer: B) Chlorine (Cl). 4. Elements are found in the ..... A) Lithosphere, biosphere, hydrosphere, and the atmosphere. B) Lithosphere, elmentsphere, and the universe. C) Atmosphere, universe, and lithosphere. D) Periodic table of elements. Show Answer Correct Answer: A) Lithosphere, biosphere, hydrosphere, and the atmosphere. 5. What are Chemical Changes? A) Characteristics that can be observed/measured without changing the identity of the substance. B) Changes that do not affect the identity of the substance. C) A property that depends on the amount of matter in a sample. D) When one or more substances are converted into different substances. Show Answer Correct Answer: D) When one or more substances are converted into different substances. 6. A ..... can be used to help visualize microscopic structures and events. A) Variable. B) Hypothesis. C) Theory. D) Model. Show Answer Correct Answer: D) Model. 7. Can solid nitrogen conduct electricity? A) No, it exist as neutral molecule. B) No, it is covalent compound. C) Yes, it consists of ions. D) Yes, it is ionic compound. Show Answer Correct Answer: A) No, it exist as neutral molecule. 8. The use of mathematics and computers to understand the principles behind observed chemical behavior and to design and predict the properties of new compounds. A) Theoretical Chemistry. B) Biochemistry. C) Inorganic Chemistry. D) Organic Chemistry. Show Answer Correct Answer: A) Theoretical Chemistry. 9. Metals are malleable, this means they are ..... A) Shiny. B) Good conductors of heat and electricity. C) Can be hammered into sheets. D) Dull. Show Answer Correct Answer: C) Can be hammered into sheets. 10. A local water quality standard for a particular metal is 100 ppm. Which of the following describes what 100 ppm means? A) 1/1, 000, 000. B) 10/1, 000, 000. C) 100/1, 000, 000. D) 1, 000/1, 000, 000. Show Answer Correct Answer: C) 100/1, 000, 000. 11. Butter bean seeds were placed in dishes lined with moist paper towel for 5 days at different temperatures & germination was measured. Which of the following is the independent variable? A) Number of seeds. B) Time. C) Temperature. D) Type of seed. Show Answer Correct Answer: C) Temperature. 12. Cr + Mn + Ni A) Compound. B) Element. C) Mixture. D) None of above. Show Answer Correct Answer: C) Mixture. 13. Which of the following are the benefits of using catalysts in industrial processes? (1)Needing higher temperatures for reactions(2) Lowering the operating temperature(3) Getting more product in a relatively shorter period oftime A) And (2) only. B) And (3) only. C) And (3) only. D) , (2) and (3). Show Answer Correct Answer: B) And (3) only. 14. In a neutral atom, the atomic number is also equal to which of the following? A) The number of protons. B) The number of electrons. C) The number of protons and neutrons. D) The number of neutrons. E) The number of protons and electrons. Show Answer Correct Answer: E) The number of protons and electrons. 15. Argon (proton number =18) is inert to any chemical reaction because A) It is light. B) It is located in Group 18. C) It has achieved stable duplet electron arrangement. D) It has achieved stable octet electron arrangement. Show Answer Correct Answer: D) It has achieved stable octet electron arrangement. 16. What is the charge of S? A) 0. B) +1. C) -2. D) -1. Show Answer Correct Answer: C) -2. 17. A substance that consists of only one type of atom A) Mixture. B) Element. C) Compound. D) Solute. Show Answer Correct Answer: B) Element. 18. Coordination No. = 6No. of Molecules = 1APF = 0.52Relationship (a to r) = a=2r A) Simple Cubic. B) Body Centered Cubic. C) Face Centered Cubic. D) Hexagonal Closed Pack. Show Answer Correct Answer: A) Simple Cubic. 19. Consider the reaction:2 H2O + energy $\rightarrow$ 2H2 + O2 A) Exothermic because releasing energy. B) Exothermic because absorbing energy. C) Endothermic because absorbing energy. D) Endothermic because releasing energy. Show Answer Correct Answer: C) Endothermic because absorbing energy. 20. An example of a chemical property is ..... A) Flammability. B) Change of State. C) Burning. D) Density. Show Answer Correct Answer: A) Flammability. ← PreviousNext →Related QuizzesChemistry QuizzesScience QuizzesChemistry Quiz 1Chemistry Quiz 2Chemistry Quiz 3Chemistry Quiz 4Chemistry Quiz 5Chemistry Quiz 6Chemistry Quiz 7Chemistry Quiz 8 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books