This quiz works best with JavaScript enabled. Home > Science > Chemistry – Quiz 55 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Chemistry Quiz 55 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. A change in the size, shape, or state of matter. A) Chemical change. B) Physical change. C) Chemical reaction. D) Electron change. Show Answer Correct Answer: B) Physical change. 2. How many quarks do the electron have? A) 2 up quarks and 1 down quark. B) 1 up quark and 2 down quarks. C) 1 up quark and 5 down quarks. D) None of above. Show Answer Correct Answer: C) 1 up quark and 5 down quarks. 3. It exist between polar molecules. A) Hydrogen bond. B) Dipole dipole forces. C) Ion dipole forces. D) London dispersion forces. Show Answer Correct Answer: B) Dipole dipole forces. 4. In the periodic table, what does C stand for? A) Cat. B) Calcium. C) Carbon. D) Crypton. Show Answer Correct Answer: C) Carbon. 5. Why is phosphorus kept under water? A) To make it wet. B) To make it durable. C) Water forms a protective coating on it. D) To save it from catching fire when exposed to dry air. Show Answer Correct Answer: D) To save it from catching fire when exposed to dry air. 6. Symbol for silver in periodic table is A) Ag. B) Au. C) Al. D) Na. Show Answer Correct Answer: A) Ag. 7. Which is the correct general formula for ketones? A) CnH2n+2O. B) CnH2nO. C) CnH2n+1O. D) CnH2n+1CO. Show Answer Correct Answer: B) CnH2nO. 8. Which of these elements forms a molecular solid? A) Florine. B) Copper. C) Iodine. D) Mercury. Show Answer Correct Answer: C) Iodine. 9. Which one of the following characteristics is INCORRECT for all of the members of the same homologous series? A) Same general formula. B) Similar chemical properties, i.e. undergo the same reactions. C) Varying physical properties, i.e. change in a predictable way. D) Same ratio of atoms. Show Answer Correct Answer: D) Same ratio of atoms. 10. If I pour the water off after I boil the banana, this method is an example of ..... A) Filtration. B) Distillation. C) Decantation. D) Mechanical separation. Show Answer Correct Answer: C) Decantation. 11. Everywhere in the universe an object's ..... is the same. A) Weight. B) Mass. C) Volume. D) Friction. Show Answer Correct Answer: B) Mass. 12. Identify the Electron Configuration for Aluminum (Al) A) 1s2 2s2 2p6 3s2 3p1. B) 1s2 2s2 2p6 3s2 4p1. C) 1s2 2s2 2p6 3s2 3p3. D) None of above. Show Answer Correct Answer: A) 1s2 2s2 2p6 3s2 3p1. 13. How many sig figs are in 807 A) 1. B) 2. C) 3. D) 4. Show Answer Correct Answer: C) 3. 14. Which Russian scientist created the first Periodic Table in 1896? A) Moseley. B) Rutherford. C) Mendeleev. D) Avogadro. Show Answer Correct Answer: C) Mendeleev. 15. In which group are the halogens found? A) 1. B) 3-12. C) 17. D) 18. Show Answer Correct Answer: C) 17. 16. Liter converts to A) 1000 mL. B) .001 mL. C) .01 kL. D) 100 mL. Show Answer Correct Answer: A) 1000 mL. 17. The substance of specific properties that do not depend on the amount of substance. A) Extensive properties. B) Intensive properties. C) Physical properties. D) Chemical properties. Show Answer Correct Answer: B) Intensive properties. 18. Which type of reaction is:2 H3AsO4 $\rightarrow$ As2O5 + 3 H2O A) Synthesis. B) Decomposition. C) Single Displacement. D) Combustion. Show Answer Correct Answer: B) Decomposition. 19. Ionic bonds are chemical bonds formed by the A) Sharing of electrons between molecules. B) Donation of protons from one atom to another. C) Transfer of electrons from one atom to another. D) Acceptance of neutrons from one atom by another. Show Answer Correct Answer: C) Transfer of electrons from one atom to another. 20. Which biomolecule is responsible for insulation and energy storage? A) Protein. B) Nucleic Acid. C) Lipid. D) Carbohydrate. Show Answer Correct Answer: C) Lipid. ← PreviousNext →Related QuizzesChemistry Quiz 1Chemistry Quiz 2Chemistry Quiz 3Chemistry Quiz 4Chemistry Quiz 5Chemistry Quiz 6Chemistry Quiz 7Chemistry Quiz 8Chemistry Quiz 9Chemistry Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books