This quiz works best with JavaScript enabled. Home > Science > Chemistry – Quiz 46 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Chemistry Quiz 46 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Atoms have no electric charge because they A) Have an equal number of charged and non-charged particles. B) Have neutrons in their nuclei. C) Have an equal number of electrons and protons. D) Have an equal number of neutrons and protons. Show Answer Correct Answer: C) Have an equal number of electrons and protons. 2. An atom has an atomic number of 13 and a mass number of 27. It also has a +3 charge. What do you know about this atom? A) It formed an ionic bond. B) It formed a covalent bond. C) It is neutral. D) It does not have neutrons. Show Answer Correct Answer: A) It formed an ionic bond. 3. What is used to avoid melting of ice? A) Butane. B) Gelatine. C) Methane. D) Any acid. Show Answer Correct Answer: B) Gelatine. 4. Pure substance made of only 1 type of molecule A) Molecule. B) Element. C) Compound. D) Atoms. Show Answer Correct Answer: B) Element. 5. Which of the following is the predominant intermolecular force in water? A) Hydrogen bonding. B) Ion-dipole interactions. C) Ion-dipole interactions. D) All of the above. Show Answer Correct Answer: A) Hydrogen bonding. 6. Alloys made with mercury as one metal are called? A) Solders. B) Mixtures. C) Amalgams. D) Emulsions. Show Answer Correct Answer: C) Amalgams. 7. Super hot and super excited atoms, it is the most common state of matter in universe. A) Bose Einstein condenastes. B) Plasmas. C) Gas. D) Liquid. Show Answer Correct Answer: B) Plasmas. 8. Which of the following type of intermolecular forces is present in all substances, regardless of polarity? A) Dipole-dipole forces. B) Hydrogen bonding. C) Ion-dipole forces. D) London dispersion forces. Show Answer Correct Answer: D) London dispersion forces. 9. Which one of these is NOT located in the element square on the Periodic Table? A) Atomic Number. B) Atomic Mass. C) Room Temperature. D) Chemical Symbol. Show Answer Correct Answer: C) Room Temperature. 10. A soda or soft drink is an example of a solution where in .....? A) A gas dissolved in a gas. B) A liquid dissolved in a liquid. C) A gas dissolve in a liquid. D) A solid dissolved in a liquid. Show Answer Correct Answer: C) A gas dissolve in a liquid. 11. A student calculated the % composition of the elements in the compound Pb3(PO4)2 and said that one element represented 16.8%. Which element was this? A) Lead. B) Phosphorous. C) Oxygen. D) None of these. Show Answer Correct Answer: D) None of these. 12. It explains the properties of solids and liquids in terms of the intermolecular forces of attraction and the kinetic energy of the individual particles. A) Kinetic molecular model. B) Intermolecular forces of attraction. C) Intermolecular forces and properties of liquid. D) None of above. Show Answer Correct Answer: A) Kinetic molecular model. 13. What is the main organ of the respiratory system? A) Heart. B) Lungs. C) Kidney. D) Liver. Show Answer Correct Answer: B) Lungs. 14. To what does the term valence refer? A) Electrons in the innermost energy level. B) Protons in the innermost energy level. C) Electrons in the outermost energy level. D) Protons in the outermost energy level. Show Answer Correct Answer: C) Electrons in the outermost energy level. 15. Which of the following is a covalent bond? A) NaCl. B) HCl. C) NH4Cl. D) ZnCl2. Show Answer Correct Answer: B) HCl. 16. It is the total number of protons and neutrons in the nucleus of an atom. A) Isotopes. B) Atomic mass. C) Atomic number. D) None of above. Show Answer Correct Answer: B) Atomic mass. 17. What is the difference between O18 and O16 A) 18 electrons. B) 16 protons. C) 2 neutrons. D) 2 electrons. Show Answer Correct Answer: C) 2 neutrons. 18. How many grams are there in 3.30 x 1023 molecules of N2I6? A) 0.548 grams. B) 1.290 grams. C) 278 grams. D) 433 grams. Show Answer Correct Answer: D) 433 grams. 19. The main use of salt in the diet is to A) Make the taste of food better. B) Ease the process of cooking. C) Increase the solubility of food particles in water. D) Produce in small amounts the hydrochloric acid required for the digestion of food. Show Answer Correct Answer: D) Produce in small amounts the hydrochloric acid required for the digestion of food. 20. Sodium will typically ..... electron(s) when forming an ionic bond. A) Gain 1. B) Lose 1. C) Gain 3. D) Lose 3. Show Answer Correct Answer: B) Lose 1. ← 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