This quiz works best with JavaScript enabled. Home > Science > Chemistry > Chemistry Basics > Chemistry – Quiz 34 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Chemistry Quiz 34 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. An element is made up of only one kind of ..... A) Isotope. B) Plastic. C) Atom. D) Metal. Show Answer Correct Answer: C) Atom. 2. What is the difference between ionic and covalent bonding? A) Ionic bonds share electrons, covalent bonds transfer electrons. B) Covalent bonds share electrons, ionic bonds transfer electrons. C) Only ionic bonds can make double bonds. D) Only ionic bonds can be polar. Show Answer Correct Answer: B) Covalent bonds share electrons, ionic bonds transfer electrons. 3. Pure oxygen (O) is an example of ..... A) An element. B) A mixture. C) A compound. D) None of above. Show Answer Correct Answer: A) An element. 4. The rule that refers to polar molecules dissolving polar and nonpolar dissolving nonpolar is A) This dissolves that. B) Like dissolves like. C) Same dissolves same. D) Here dissolves there. Show Answer Correct Answer: B) Like dissolves like. 5. Subatomic particle that determines the identity of the atom A) Proton. B) Nucleus. C) Electron. D) Neutron. Show Answer Correct Answer: A) Proton. 6. A(n) ..... increases the reaction rate by lowering the activation energy needed. A) Catalyst. B) Energy. C) Activation energy. D) Decomposition. E) Chemical changes. Show Answer Correct Answer: A) Catalyst. 7. Water is a universal solvent because it ..... A) It can be found anywhere. B) It freezes when it gets cold. C) Floats when frozen. D) Dissolves most substances. Show Answer Correct Answer: D) Dissolves most substances. 8. The four main types of carbon-based molecules in organisms are carbohydrates, lipids, nucleic acids, and A) Starches. B) Fatty acids. C) Monosaccharides. D) Proteins. Show Answer Correct Answer: D) Proteins. 9. The number of atoms, ions or molecules that a central atom or ion holds as its nearest neighbors in a complex or a coordination compound or in a crystal. A) Coordination number. B) Ligancy. C) Coordination. D) None of above. Show Answer Correct Answer: A) Coordination number. 10. What is the correct name for the following compound? HClO3 A) Hydrogen chloroxide. B) Chloric acid. C) Hydrogen trichlorate. D) Hypochlorite. Show Answer Correct Answer: B) Chloric acid. 11. What is the most dense metal? A) Aluminum 2.7 g/cm3. B) Steel7.14 g/cm3. C) Nylon1.2 g/cm3. D) Copper 8.14 g/cm3. Show Answer Correct Answer: D) Copper 8.14 g/cm3. 12. Identifies an unknown through by calculating its composition. A) Analytical. B) Physical. C) Organic. D) Biochemistry. Show Answer Correct Answer: A) Analytical. 13. What term describes a solid changing to a liquid? A) Deposition. B) Sublimation. C) Freezing. D) Melting. Show Answer Correct Answer: D) Melting. 14. What are the raw materials for the Haber process? A) Hydrogen and Oxygen. B) Hydrogen and Nitrogen. C) Water and Nitrogen. D) Oxygen and Nitrogen. Show Answer Correct Answer: B) Hydrogen and Nitrogen. 15. The branch of chemistry that would Identify an unknown material by determining its chemical composition or make-up. A) Analytical. B) Physical. C) Organic. D) Biochemistry. Show Answer Correct Answer: A) Analytical. 16. How many structural isomers exist with the formula C3H5Cl3? A) 3. B) 4. C) 5. D) 6. Show Answer Correct Answer: C) 5. 17. The attraction between two molecules DIFFERENT substances is called ..... A) Cohesion. B) Adhesion. C) Capillary action. D) Surface tension. Show Answer Correct Answer: B) Adhesion. 18. All elements in the same vertical column are referred to as: A) Column. B) Family. C) Group. D) All of the above. Show Answer Correct Answer: D) All of the above. 19. The attraction between two molecules of the SAME substance is called ..... A) Cohesion. B) Adhesion. C) Capillary action. D) Surface tension. Show Answer Correct Answer: A) Cohesion. 20. In the chemical name copper (II) sulphate the roman numeral is used to show A) Which ion is used. B) How the ion is used. C) The period the element belonged in. D) The group the element belonged in. Show Answer Correct Answer: A) Which ion is used. ← 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