This quiz works best with JavaScript enabled. Home > General Knowledge > Science > Chemistry > Chemistry Basics > Chemistry – Quiz 1 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Chemistry Quiz 1 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Jack has a rock. The rock has a mass of 14g and a volume of 2cm3. What is the density of the rock? A) 7 mL. B) 7 g/cm3. C) 28 g/cm3. D) 1/7 g/cm3. Show Answer Correct Answer: B) 7 g/cm3. 2. Phosphoric acid is a weak acid that A) Has a pH value of 1.0. B) Cannot neutralise alkaline solution. C) Changes red litmus paper to blue. D) Ionises partially in water to produce hydrogen ions. Show Answer Correct Answer: D) Ionises partially in water to produce hydrogen ions. 3. The volume of 1.7g of NH3 at STP (273K, 1atm) is A) 2.24L. B) 2.8L. C) 1.7L. D) 3.4L. Show Answer Correct Answer: A) 2.24L. 4. Mendeleev arranged the Periodic Table according to? A) Name. B) Charge. C) Atomic mass. D) Atomic number. Show Answer Correct Answer: C) Atomic mass. 5. Both animal fats and plant oils are made up of glycerol and A) Fatty acids. B) Polar molecules. C) Phospholipids. D) Saturated fats. Show Answer Correct Answer: A) Fatty acids. 6. In an exothermic reaction, energy is ..... A) Doubled. B) Released. C) Stored. D) Absorbed. Show Answer Correct Answer: B) Released. 7. Two or more elements bonded together are: A) A mixture. B) A compound. C) An atom. D) A substance. Show Answer Correct Answer: B) A compound. 8. A student mixes apple juice, water, and cinnamon together. Did a chemical reaction occur? A) No, because the properties stayed the same. B) Yes, because dissolving is always a chemical reaction. C) Yes, because the apple juice changed the color of the water. D) Yes, because the temperature stayed the sam. Show Answer Correct Answer: A) No, because the properties stayed the same. 9. The simplest form of matter with a unique set of properties A) Element. B) Mixture. C) Compound. D) Solution. Show Answer Correct Answer: A) Element. 10. What is an atom which has gained or last electrons called? A) Ion. B) Atom. C) Isotope. D) Balanced. Show Answer Correct Answer: A) Ion. 11. Which of the following is a chemical property of a substance? The substance ..... A) Reacts with hydrochloric acid. B) Scratches glass. C) Conducts electricity. D) Is more dense than water. Show Answer Correct Answer: A) Reacts with hydrochloric acid. 12. Which term defines the smallest sample of matter that still has the same properties? This is what makes up everything. A) An atom. B) A molecule. C) A bond. D) An element. Show Answer Correct Answer: A) An atom. 13. The largest part of a solution is called the A) Solvent. B) Solute. C) Solution. D) Colloid. Show Answer Correct Answer: A) Solvent. 14. The symbol of gold is ..... A) Gd. B) A. C) Au. D) Go. Show Answer Correct Answer: C) Au. 15. What property of water causes water molecules to attract to the sides of a graduated cylinder? A) PH. B) Cohesion. C) Adhesion. D) Heat capacity. Show Answer Correct Answer: C) Adhesion. 16. If an element has more electrons than protons, it will have a ..... charge. A) Positive. B) Negative. C) Neutral. D) None of above. Show Answer Correct Answer: B) Negative. 17. What determines the number of protons in an atom? A) Atomic mass. B) Oxidation number. C) Atomic weight. D) Atomic number. Show Answer Correct Answer: D) Atomic number. 18. What was the first synthetic organic insecticide A) DTD. B) TTT. C) DDT. D) TTD. Show Answer Correct Answer: C) DDT. 19. Which of the following is true about glacial ethanoic acid? A) It contains free mobile ions. B) It has a molecular formula of HCOOH. C) It is unable to conduct electricity. D) It turns dry blue litmus paper red. Show Answer Correct Answer: C) It is unable to conduct electricity. 20. What kind of bond cleavage yields charged fragments? A) Heterolysis. B) Substitution. C) Homolysis. D) Unifrom. Show Answer Correct Answer: A) Heterolysis. 21. Malleability and ductility are characteristic of substances with A) Covalent bonds. B) Ionic bonds. C) Lewis structures. D) Metallic bonds. Show Answer Correct Answer: D) Metallic bonds. 22. What is the correct formula for aluminum sulfide? A) Al2S. B) Al3S2. C) AlS2. D) Al2S3. Show Answer Correct Answer: D) Al2S3. 23. A single water molecule is made up of ..... A) One atom of hydrogen and one atom of oxygen. B) One atom of sodium and one atom of chlorine. C) One atom of hydrogen and two atoms of oxygen. D) Two atoms of hydrogen and one atom of oxygen. Show Answer Correct Answer: D) Two atoms of hydrogen and one atom of oxygen. 24. What happens when a few drops of bromine water are added to excess hex-1-ene and the mixture is shaken? I. The colour of the bromine water disappears.II. The organic product formed does not contain any carbon-carbon double bonds.III. 2-bromohexane is formed. A) I and II only. B) I and III only. C) II and III only. D) I, II and III. Show Answer Correct Answer: A) I and II only. 25. What is the monomer of polyethene? A) Propene. B) Styrene. C) Chloroethene. D) Ethene. Show Answer Correct Answer: D) Ethene. 26. What information do you need to write a chemical equation? A) Reactants. B) Products. C) Chemical formulas. D) All of the above. Show Answer Correct Answer: D) All of the above. 27. The molecular formula for Ammonium carbonate is A) (NH4 )2CO3. B) (NH4 )CO3. C) (NH4 )2CO. D) None of above. Show Answer Correct Answer: A) (NH4 )2CO3. 28. When heat is added to matter, the molecules tend to A) Move faster and farther apart. B) Slow down. C) Nothing, heat has no impact on the state of matter. D) Freeze. Show Answer Correct Answer: A) Move faster and farther apart. 29. This rule states that the energy cannot be gained or lost in a chemical reaction ..... A) Theory of Energy Saving. B) Law of Conservation of Mass. C) Law of Conservation of Energy. D) Theory of Relativity. Show Answer Correct Answer: C) Law of Conservation of Energy. 30. Property that can be measured and observed without changing the composition or identity of a substance. A) Physical Property. B) Extensive Property. C) Chemical Property. D) Intensive Property. Show Answer Correct Answer: A) Physical Property. 31. Why is ammonia used to test for copper in a solution? Choose the best answer. A) Different people see colors differently. B) The ammonia test can detect smaller amounts of copper than the human eye can detect. C) The odor of ammonia is easily detected by most people. D) All chemical tests are superior to relying on information provided by the senses. Show Answer Correct Answer: B) The ammonia test can detect smaller amounts of copper than the human eye can detect. 32. In which of the following process a chemical reaction has taken place? A) Sugar getting dissolved in water. B) A brown layer is formed over iron rod kept in air. C) Ice melts into water. D) A wet shirt got dried in sunlight. Show Answer Correct Answer: B) A brown layer is formed over iron rod kept in air. 33. What is the ground state electron configuration for an atom of tin? A) [Kr] 5s25d105p2. B) [Kr] 5s24d105p2. C) [Kr] 5s24d95p3. D) [Kr] 5s25d105p2. Show Answer Correct Answer: B) [Kr] 5s24d105p2. 34. The gaseous state of a substance that is generally a liquid or solid at room temperature. A) Volume. B) Liquid. C) Oxgyen. D) Vapor. Show Answer Correct Answer: D) Vapor. 35. A gas is a form of matter that A) Has a definite volume. B) Is generally a liquid or solid at room temperature. C) Takes the shape and volume of its container. D) Is difficult to compress. Show Answer Correct Answer: C) Takes the shape and volume of its container. 36. A branch of chemistry that is concerned with how and why chemicals interact is ..... A) Biochemistry. B) Physical chemistry. C) Theoretical chemistry. D) Analytical chemistry. Show Answer Correct Answer: C) Theoretical chemistry. 37. How does the structure of the cell membrane help the cell regulate water? A) Phospholipid molecules form a double layer of the cell membrane. B) The heads of one layer face outside, the heads of the other face inside the cell. C) The heads attract water, tails repel water. D) All of the above. Show Answer Correct Answer: D) All of the above. 38. Calculate the formula mass of $ KCl$ . (Atomic mass of $ K=39$, $ Cl=35.5$ ) A) 74.5. B) 4.5. C) 90. D) None of above. Show Answer Correct Answer: A) 74.5. 39. Any part of a sample with uniform composition and properties is called a phase A) Always True. B) Sometimes True. C) Never True. D) None of above. Show Answer Correct Answer: A) Always True. 40. $ Ca_3P\ is\ what\ type\ of\ bond$ A) Polar. B) Ionic. C) Non-polar. D) Metallic. Show Answer Correct Answer: B) Ionic. 41. Determine whether each material below is a pure substance-element, pure substance-compound, a homogeneous mixture, or a heterogeneous mixture.raisin bran cereal A) Heterogeneous mixture. B) Pure substance, compound. C) Pure substance, element. D) Homogeneous mixture. Show Answer Correct Answer: A) Heterogeneous mixture. 42. What is the measurement of matter whose value depends on the force of gravity? A) Energy. B) Weight. C) Volume. D) Mass. Show Answer Correct Answer: B) Weight. 43. The amount of a particular solute in a given amount of solution A) Mass. B) Solubility. C) Concentration. D) Matter. Show Answer Correct Answer: C) Concentration. 44. Which subatomic particle identifies an atom of an element? A) Nucleus. B) Electron. C) Proton. D) Neutron. Show Answer Correct Answer: C) Proton. 45. What are the 6 branches? A) Organic Chemistry, Matter, Basic research, Metalloids, Chemical Symbols and Periods. B) Periods, Groups, Families, Tables, Matter, and Mass. C) Elements, Physical Changes, States, Properties, Reactions, and Mixtures. D) Organic Chemistry, Inorganic chemistry, Physical Chemistry, Analytical Chemistry, Biochemistry, Theoretical Chemistry. Show Answer Correct Answer: D) Organic Chemistry, Inorganic chemistry, Physical Chemistry, Analytical Chemistry, Biochemistry, Theoretical Chemistry. 46. Which of the following are isomers of pentane? I. 2-methylpentaneII. methylbutaneIII. dimethylpropane A) I and II only. B) I and III only. C) II and III only. D) I, II and III. Show Answer Correct Answer: C) II and III only. 47. Which is the best example of a heterogenous mixture? A) Sugar. B) Salad. C) Brass. D) Salt water. Show Answer Correct Answer: B) Salad. 48. A chemistry class explores the heart of a frog, What type of science is this? A) Analytical Chemistry. B) Theoretical. C) Biochemistry. D) Organic Chemistry. Show Answer Correct Answer: C) Biochemistry. 49. Substances that are used up during a chemical change are known as: A) Precipitates. B) Reactants. C) Products. D) Catalysts. Show Answer Correct Answer: B) Reactants. 50. A material used to decrease the rate of a chemical reaction is a(n): A) Enzyme. B) Inhibitor. C) Catalyst. D) Fuel. Show Answer Correct Answer: B) Inhibitor. 51. Form of matter that takes the shape of its container and can expand to fill any volume. A) Liquid. B) Solid. C) Gas. D) Volume. Show Answer Correct Answer: C) Gas. 52. Which of the following does not corrode when exposed to the atmosphere- A) Au. B) Fe. C) Ag. D) Cu. Show Answer Correct Answer: A) Au. 53. Which of these is a metallic bond A) Metal + Metal. B) Metal + Non-metal. C) Non-metal + Non-metal. D) None of above. Show Answer Correct Answer: A) Metal + Metal. 54. The atomic number is equal to the number of A) Protons. B) Electrons. C) Neutrons. D) None of above. Show Answer Correct Answer: A) Protons. 55. What is the name of the ester formed when CH3CH2COOH and CH3OH react together? A) Methyl propanoate. B) Methyl ethanoate. C) Propyl methanoate. D) Ethyl methanoate. Show Answer Correct Answer: A) Methyl propanoate. 56. Convert from meters to cm:9 meters A) 0.09 cm. B) 0.9 cm. C) 90 cm. D) 900 cm. Show Answer Correct Answer: D) 900 cm. 57. What is the organic product of the reaction between 2-chlorobutane and sodium hydroxide solution? A) Butan-1-ol. B) Butan-2-ol. C) Butanal. D) Butanone. Show Answer Correct Answer: B) Butan-2-ol. 58. Which of the following DOES NOT indicate a chemical change/reaction is occurring? A) State of matter change. B) Formation of gas/bubbles. C) Formation of a Precipitate. D) Color Change. Show Answer Correct Answer: A) State of matter change. 59. Which is an example of a solvent in salt water? A) Water. B) Air. C) There is no solvent. D) Salt. Show Answer Correct Answer: A) Water. 60. The branch of chemistry that would measure the amount of energy given off by an instant hot pack. A) Physical Chemistry. B) Organic Chemistry. C) Biochemistry. D) None of above. Show Answer Correct Answer: A) Physical Chemistry. Next →Related QuizzesChemistry QuizzesScience QuizzesChemistry Quiz 2Chemistry Quiz 3Chemistry Quiz 4Chemistry Quiz 5Chemistry Quiz 6Chemistry Quiz 7Chemistry Quiz 8Chemistry Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books