This quiz works best with JavaScript enabled. Home > General Knowledge > Science > Chemistry > Chemistry – Quiz 5 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Chemistry Quiz 5 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which statement best describes an element? A) Any kind of crystal. B) A substance containing only carbon atoms. C) Any combination of two or more atoms of different types. D) A pure substance made up of only one kind of atom. Show Answer Correct Answer: D) A pure substance made up of only one kind of atom. 2. If fluorine is stronger then carbon, what charge will the fluorine receive? A) Negative. B) Positive. C) Slight negative. D) Slight positive. Show Answer Correct Answer: C) Slight negative. 3. A type of mixture that is intermediate to a solution and a suspension A) Suspension. B) Colloid. C) Tyndall effect. D) Solution. Show Answer Correct Answer: B) Colloid. 4. What is a product? A) The substances you start with in a chemical reaction. B) The substances that are formed by a chemical reaction. C) A volatile chemical. D) A fancy word for make-up. Show Answer Correct Answer: B) The substances that are formed by a chemical reaction. 5. How many H2O molecules can form hydrogen bonds with one H2O molecule? A) 1. B) 3. C) 4. D) 2. Show Answer Correct Answer: C) 4. 6. This lipid consists of three fatty acid molecules bonded to a glycerol molecule A) True fats. B) Phospholipids. C) Cholesterol. D) Triglycerides. Show Answer Correct Answer: D) Triglycerides. 7. How many molecules in 2 moles of methane (CH4)? A) 2 x 6.02 x 1023. B) 10. C) 2 / 6.02 x 1023. D) 2. Show Answer Correct Answer: A) 2 x 6.02 x 1023. 8. The results of testing a colorless solution with three indicators are shown in the table below. Which formula could represent the solution tested? Indicator ResultRed Litmus stays RedBlue Litmus turns Redphenolphthalein clear A) CuSO4 (aq). B) H2SO4 (aq). C) H2O (l). D) NaOH (aq). Show Answer Correct Answer: B) H2SO4 (aq). 9. What are the 3 states of matter? A) Levi, Justin, Ethan. B) Washington, Oregon, Idaho. C) Protons, neutrons, electrons. D) Solid, liquid, or gas. Show Answer Correct Answer: D) Solid, liquid, or gas. 10. If a substance contains a lot of H+ (protons), then it will be ..... A) Basic. B) Acidic. C) Hot. D) Neutral. Show Answer Correct Answer: B) Acidic. 11. Who proposed an atomic model that shows electrons move in concentric orbit around the nucleus? A) Rutherford. B) Dalton. C) Thomson. D) Bohr. Show Answer Correct Answer: D) Bohr. 12. State the number of atoms present in 1mole of He A) 6.022 X 1019. B) 6.022 X 1021. C) 6.022 X 1020. D) 6.022 X 1023. Show Answer Correct Answer: D) 6.022 X 1023. 13. Most of the mass in an atom is concentrated in the ..... A) Protons. B) Empty space. C) Electrons. D) Nucleus. Show Answer Correct Answer: D) Nucleus. 14. The valence electrons of fluorine ( F ) atom is ..... A) 2. B) 7. C) 4. D) 3. Show Answer Correct Answer: B) 7. 15. How many moles are in 15 grams of lithium? A) 2.2 moles. B) 50 moles. C) 0.5 moles. D) 104.1 moles. Show Answer Correct Answer: A) 2.2 moles. 16. Positively charged subatomic particles A) Protons. B) Neutrons. C) Electrons. D) None of above. Show Answer Correct Answer: A) Protons. 17. What do you call the experiment used by JJ Thomson in discovering electron. A) Gold Foil Experiment. B) Cathode Ray Experiment. C) Beryllium Experiment. D) Density Experiment. Show Answer Correct Answer: B) Cathode Ray Experiment. 18. The nucleus of an atom contains ..... and ..... A) Protons and Neutrons. B) Protons and Electrons. C) Neutrons and Electrons. D) Electrons Only. Show Answer Correct Answer: A) Protons and Neutrons. 19. Which one of the following metals does not react with water to produce Hydrogen? A) Cadmium. B) Potassium. C) Sodium. D) Lithium. Show Answer Correct Answer: A) Cadmium. 20. When an atom gains a valence electron, it becomes a(n) ..... ion. A) Negative. B) Positive. C) Polyatomic. D) Neutral. Show Answer Correct Answer: A) Negative. 21. A conversion factor derived from the coefficients of a balanced chemical equation interpreted in term of mole. A) Mole ratio. B) Ratio. C) Molecule unit. D) Molecular ratio. Show Answer Correct Answer: A) Mole ratio. 22. Condensing means transforming from gas to ..... A) Gas. B) Solid. C) Liquid. D) Plasma. Show Answer Correct Answer: C) Liquid. 23. When an atom loses an electron, it A) Becomes negatively charged. B) Obtains a neutral charge. C) Becomes positively charged. D) Will form a metallic bond. Show Answer Correct Answer: C) Becomes positively charged. 24. What does a buffer do? A) Neutralizes strong acids. B) Neutralizes strong bases. C) Neutralizes strong acids and strong bases. D) None of above. Show Answer Correct Answer: C) Neutralizes strong acids and strong bases. 25. Which of the following compounds has ONLY covalent bonds? A) Li2O. B) NO2. C) BaO. D) Mg3P2. Show Answer Correct Answer: B) NO2. 26. Molar mass is defined as A) The mass in grams of 1 mole of a substance. B) The number of particles in 1 mole of a substance. C) Amount of a substance necessary to have a positive charge. D) SI base unit that describes the amount of a substance. Show Answer Correct Answer: A) The mass in grams of 1 mole of a substance. 27. A process which separates two liquids based on differences in their boiling points is A) Filtration. B) Evaporation. C) Distillation. D) Absorption. Show Answer Correct Answer: C) Distillation. 28. The attraction between molecules of the same kind is known as ..... A) Adhesion. B) Cohesion. C) Surface tension. D) None of above. Show Answer Correct Answer: B) Cohesion. 29. Which of the following is not a physical state of matter? A) Element. B) Solid. C) Liquid. D) Gas. Show Answer Correct Answer: A) Element. 30. Particles in an atom that are neutral and have no charge are A) Protons. B) Electrons. C) Neutrons. D) Negatrons. Show Answer Correct Answer: C) Neutrons. 31. Why is deuterium 2H1 sometimes called heavy hydrogen? A) It has extra electron. B) It has extra nucleus. C) It has extra proton. D) It has extra neutron. Show Answer Correct Answer: A) It has extra electron. 32. Why do sugar particles dissolve faster in hot water? A) Water particles move slow. B) Water particles stay on top. C) Water particles move fast. D) Water particles settle down. Show Answer Correct Answer: C) Water particles move fast. 33. How many grams are there in 7.40 moles of AgNO3? A) 1260 grams. B) 680 grams. C) 0.140 grams. D) 0.043 grams. Show Answer Correct Answer: A) 1260 grams. 34. Calculate the mass percent of solution, if there is 100 g of sugar and 400 g of water A) 25. B) 20. C) 15. D) 30. Show Answer Correct Answer: B) 20. 35. Electrons have a ..... charge. A) Negative. B) Positive. C) Neutral. D) None of above. Show Answer Correct Answer: A) Negative. 36. What is the smallest unit of an element that still retains its properties? A) Electron. B) Atom. C) Nucleus. D) Proton. Show Answer Correct Answer: B) Atom. 37. An aluminum isotope consists of 13 protons, 13 electrons, and 14 neutrons. Its mass number is A) 13. B) 27. C) 40. D) 14. Show Answer Correct Answer: B) 27. 38. "Like dissolves like" refers to compounds with A) Similar molar masses. B) The same types of intermolecular forces. C) The same number of carbon atoms. D) No intermolecular attractions. Show Answer Correct Answer: B) The same types of intermolecular forces. 39. Is a phenomenon observed in diapered colloid particles once light is directed to such mixtures A) Suspension. B) Colloid. C) Tyndall effect. D) Solution. Show Answer Correct Answer: C) Tyndall effect. 40. If an aluminum atom has 13 protons (+) and 10 electrons (-), what is it's charge? A) Al3+. B) Al10+. C) Al10-. D) Al13+. Show Answer Correct Answer: A) Al3+. 41. What is the number of protons in iron-56? A) 26. B) 82. C) 56. D) 30. Show Answer Correct Answer: A) 26. 42. Suppose you have two white powders (Baking powder and baking soda) an you want to distinguish the two. How would you identify the given materials without tasting them? A) Get their masses. B) Place them in water then observe. C) Touch them one by one. D) None of the above. Show Answer Correct Answer: B) Place them in water then observe. 43. The property of water that shows it takes a lot of energy to raise water 1 degree. This helps stabilize the environment and organisms and cells that are made mostly of water. A) High Specific Heat. B) Ice Floating on Top of Water. C) Cohesion. D) Adhesion. Show Answer Correct Answer: A) High Specific Heat. 44. Chemical bonds formed by the sharing of electrons are called A) Hydrogen. B) Isotopic. C) Covalent. D) Ionic. Show Answer Correct Answer: C) Covalent. 45. The tendency of a substance to resist changes in its motion is A) Composition. B) Inertia. C) Density. D) None of above. Show Answer Correct Answer: B) Inertia. 46. How many atoms of fluorine are in a molecule of carbon tetrafluoride, CF4? A) 1. B) 4. C) 2. D) 5. Show Answer Correct Answer: B) 4. 47. A way to show the number and type of elements(atoms) in a molecule or compound with a combination of symbols and numbers. A) Chemical formula. B) Molecules. C) Symbol. D) Formula. Show Answer Correct Answer: A) Chemical formula. 48. What is the chemical symbol for carbon? A) C. B) Ca. C) Cn. D) Crn. Show Answer Correct Answer: A) C. 49. The isotope atoms differ in? A) Atomic number. B) Atomic weight. C) Number of neutrons. D) Number of electrons. Show Answer Correct Answer: C) Number of neutrons. 50. Which of the following bonds are the weakest? A) Electrovalent. B) Ionic. C) Hydrogen. D) Covalent. Show Answer Correct Answer: C) Hydrogen. 51. A pH of 3 is ..... times more acidic than a pH of 6 A) 1000X. B) 2X. C) 5X. D) 10X. Show Answer Correct Answer: A) 1000X. 52. Ionic compound contains? A) Non-metals. B) Metals. C) Both. D) None of above. Show Answer Correct Answer: C) Both. 53. An ion is formed when an atom gains or loses A) Protons. B) Neutrons. C) Electrons. D) Bonds. Show Answer Correct Answer: C) Electrons. 54. Atomic number of an element gives A) The number of electrons in its atom. B) The number of nucleons in its atom. C) The total number of elementary particles in its atom. D) The weight of the atom of the element. Show Answer Correct Answer: A) The number of electrons in its atom. 55. The number of protons present in the nucleus of an atom determines the ..... A) Atomic number. B) Mass number. C) Valency. D) None of the above. Show Answer Correct Answer: A) Atomic number. 56. Which of the following covalent compounds has a chemical formula of NF3? A) Dinitirogen pentoxide. B) Dinitrogen tetrahydride. C) Nitrogen trifluoride. D) Nitrogen tribromide. Show Answer Correct Answer: C) Nitrogen trifluoride. 57. Objects float or sink as a result of this property A) Density. B) Solubility. C) Composition. D) None of above. Show Answer Correct Answer: A) Density. 58. A mixture that is unevenly distributed, has 2 phases A) Heterogeneous mixture. B) Homogeneous mixture. C) Pure substances. D) Alloys. Show Answer Correct Answer: A) Heterogeneous mixture. 59. What type of bond results from shared electrons? A) Hydrogen Bond. B) Water Bond. C) Ionic Bond. D) Covalent Bond. Show Answer Correct Answer: D) Covalent Bond. 60. Which of the following is a physical property of metals? A) Shiny. B) Bendable. C) Conducts heat. D) All of the above. Show Answer Correct Answer: D) All of the above. ← PreviousNext →Related QuizzesScience QuizzesGeneral Knowledge QuizzesChemistry Quiz 1Chemistry Quiz 2Chemistry Quiz 3Chemistry Quiz 4Chemistry Quiz 6Chemistry Quiz 7Chemistry Quiz 8Chemistry Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books