This quiz works best with JavaScript enabled. Home > General Knowledge > Science > Chemistry > Chemistry Basics > Chemistry – Quiz 4 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Chemistry Quiz 4 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Cm3 of 0.2 mol dm-3 sodium hydroxide solution is titrated with 0.1 mol dm-3 sulphuric acid. What is the volume of sulphuric acid needed to neutralise sodium hydroxide solution? A) 25 cm3. B) 100 cm3. C) 50 cm3. D) 12.5 cm3. Show Answer Correct Answer: A) 25 cm3. 2. Cm3 of 0.3 mol dm-3 sodium hydroxide neutralises 15 cm3 of hydrochloric acid solution. Determine the concentration of the hydrochloric acid solution. A) 0.5 mol dm-3. B) 0.25 mol dm-3. C) 0.3 mol dm-3. D) 1.0 mol dm-3. Show Answer Correct Answer: A) 0.5 mol dm-3. 3. A scientist uses a computer software to improve catalytic converters in cars. What type of research is used? A) Basic research. B) Applied research. C) Technological development. D) None of above. Show Answer Correct Answer: C) Technological development. 4. The melting point of ice is 00 C. This is an example of ..... A) Chemical property. B) Physical extensive property. C) Chemical change. D) Physical intensive property. Show Answer Correct Answer: D) Physical intensive property. 5. A 14-karat gold ring consists of 14 parts gold and 10 parts copper. This alloy can be separated by density when melted. Which type of matter is the 14-karat gold ring? A) Heterogeneous Mixture. B) Compound. C) Homogeneous Mixture. D) Pure Substance. Show Answer Correct Answer: C) Homogeneous Mixture. 6. Which of the following is true about a molecule of water? A) The oxygen is slightly positive and the hydrogen is slightly negative. B) The oxygen and hydrogen sides are both slightly positive. C) The oxygen and hydrogen sides are both slightly negative. D) The oxygen is slightly negative and the hydrogen is slightly positive. Show Answer Correct Answer: D) The oxygen is slightly negative and the hydrogen is slightly positive. 7. Which of the following is a noble gas? Hint:It is stable and the valence shell is full. A) Neon. B) Hydrogen. C) Oxygen. D) Carbon dioxide. Show Answer Correct Answer: A) Neon. 8. When naming compounds that contain a nonmetal bonded to a nonmetal, ..... must be used. A) Ionic charges. B) Greek prefixes. C) Lewis structures. D) Parenthesis. Show Answer Correct Answer: B) Greek prefixes. 9. Why is metal rusting a chemical change? A) It has energy. B) It creates a new substance. C) It uses the law of conservation of mass. D) It isn't. Show Answer Correct Answer: B) It creates a new substance. 10. Matter with a composition that is always the same A) Substance. B) Element. C) Homogeneous mixture. D) Heterogeneous mixture. Show Answer Correct Answer: A) Substance. 11. WHY is burning a campfire a chemical change? A) It created a new substance with new properties. B) It changes in size. C) There is a lot of smoke. D) The logs get smaller. Show Answer Correct Answer: A) It created a new substance with new properties. 12. A substance does not have a fixed composition. A) Always True. B) Sometimes True. C) Never True. D) None of above. Show Answer Correct Answer: C) Never True. 13. During an investigation on density, a student pours 20 mL of a liquid substance into a separate container from an initial amount of 50 mL. Which property of the substance changed when this happened? A) Volume, because it is an intensive property. B) Volume, because it is an extensive property. C) Density, because it is an extensive property. D) Both volume and density, because they are both intensive properties. Show Answer Correct Answer: B) Volume, because it is an extensive property. 14. Cu is the ..... for copper A) Formula. B) Symbol. C) Abbreviation. D) Equation. Show Answer Correct Answer: B) Symbol. 15. The study of Earth's atmospheric ozone and the effect of chlorofluorocarbons on ozone is an example of ..... A) Applied research. B) Basic research. C) Technology. D) Theoretical research. Show Answer Correct Answer: A) Applied research. 16. What does the atomic mass tell you? A) Basically, the number of electrons and protons. B) The number of neutrons. C) Basically, the number of protons and neutrons. D) The number of protons. Show Answer Correct Answer: C) Basically, the number of protons and neutrons. 17. How are solutions and mixtures alike? A) They are a combination of substances. B) They are both chemically combined. C) They can be separated immediately. D) They have no similarities. Show Answer Correct Answer: A) They are a combination of substances. 18. Multicellular means A) Made of only 1 cell. B) Made of 1 kind of cell. C) Made of 3 cells. D) Made of 2 or more cells. Show Answer Correct Answer: D) Made of 2 or more cells. 19. Elements are found in ..... (solid earth) A) Biosphere. B) Lithosphere. C) Universe. D) Hydrosphere. Show Answer Correct Answer: B) Lithosphere. 20. Which of the following solutions has the highest H ion concentration? A) A solution with a pH of 4. B) A solution with a pH of 1. C) A solution with a pH of 7. D) A solution with a pH of 10. Show Answer Correct Answer: B) A solution with a pH of 1. 21. A mixture that is NOT evenly distributed is called ..... A) Heterogenous. B) Homogenous. C) Compounded. D) Salty. Show Answer Correct Answer: A) Heterogenous. 22. Metals that react quickly/strongly with water and acids are called? A) Reactive. B) Corrosive. C) Dangerous. D) Unreactive. Show Answer Correct Answer: A) Reactive. 23. A sample of steel has a volume of 5.00 cm3. What is the mass of this sample if steel has a density of 8.05 g/cm3? A) 0.621g. B) 40.25g. C) 0.62g. D) 40.3g. Show Answer Correct Answer: D) 40.3g. 24. Which compound is an amide? A) CH2(NH2)COOH. B) CH3NH2. C) CH3CONH2. D) CH3COOCH3. Show Answer Correct Answer: C) CH3CONH2. 25. A forensic scientist would be a specific type of this chemist. A) Organic. B) Analytical. C) Physical. D) Inorganic. Show Answer Correct Answer: B) Analytical. 26. Smallest part of a crystal, that if repeated regularly creates the whole crystal. A) Crystal. B) Unit cell. C) Alloy. D) None of above. Show Answer Correct Answer: B) Unit cell. 27. A sample of salt X is a soluble ammonium chloride salt.You are required to verify the cations and anions that are present in that salt sample. What is the pair of reagents needed to confirm the presence of cation and anion? A) Cation:Nessler reagentAnion:Nitric acid and silver nitrate solution. B) Cation:Nessler reagentAnion:Nitric acid and barium nitrate solution. C) Cation:Potassium hexacyanoferrate(III) solutionAnion:Nitric acid and barium nitrate solution. D) Cation:Potassium hexacyanoferrate(III) solutionAnion:Nitric acid and silver nitrate solution. Show Answer Correct Answer: A) Cation:Nessler reagentAnion:Nitric acid and silver nitrate solution. 28. What is the type of mechanism and an important feature of the reaction between C(CH3)3Br and aqueous NaOH? A) SN1, an intermediate. B) SN2, an intermediate. C) SN2, a transition state. D) SN1, a transition state. Show Answer Correct Answer: A) SN1, an intermediate. 29. Which of the following statements about atoms is TRUE? A) An atom is bigger than a molecule. B) An atom is a blob of gelatinous goo. C) An atom is a basic piece of matter. D) An atom is made of many molecules. Show Answer Correct Answer: C) An atom is a basic piece of matter. 30. The mass of a lead cube is 64 grams. This is an example of A) Physical change. B) Physical intensive property. C) Chemical change. D) Physical extensive property. Show Answer Correct Answer: D) Physical extensive property. 31. Which law describes how a chemical reaction has the same amount of atoms of each element on both sides? The law of conservation of ..... A) Mass. B) Energy. C) Atoms. D) Momentum. Show Answer Correct Answer: A) Mass. 32. Which of the following statements about dilution as an approach to handling toxic waste is TRUE? A) Dilution removes the toxic materials in liquid wastes. B) Diluting a liquid until it is clear and colorless means that the liquid is safe for disposal in local sewers. C) Dilution lowers the concentration of toxic materials in liquid wastes. D) All of the above. Show Answer Correct Answer: C) Dilution lowers the concentration of toxic materials in liquid wastes. 33. What is the measuring unit for mass? A) Millimeter. B) Centimeter. C) Pounds. D) Grams. Show Answer Correct Answer: D) Grams. 34. A lipid that contains a fatty acid chain with no carbon to carbon double bonds is called a/an A) Saturated fat. B) Unsaturated fat. C) Polyunsaturated fat. D) None of above. Show Answer Correct Answer: A) Saturated fat. 35. What is true about the combinations of elements to become a compound? A) Nothing happens. B) The properties of the element stay the same. C) The properties will change when combined to form a compund. D) The properties are very similar to the outcome of the compound. Show Answer Correct Answer: C) The properties will change when combined to form a compund. 36. Convert 38 hg to Mg A) 38.0. B) 380, 000. C) 0.0038. D) 38.00000. Show Answer Correct Answer: C) 0.0038. 37. Which of the following is formed when an atom gains or loses electrons? A) Ion. B) Element. C) Molecule. D) Compound. Show Answer Correct Answer: A) Ion. 38. Form of matter that has a definite shape (does not depend on the container) and volume. A) Liquid. B) Precipitate. C) Gas. D) Solid. Show Answer Correct Answer: D) Solid. 39. What is the correct formula for the compound calcium carbide? A) Ca2C. B) CaC2. C) Ca2C4. D) CaC. Show Answer Correct Answer: A) Ca2C. 40. Iron nails + copper oxide = A) Iron oxide + copper. B) Iron nails + copper oxide. C) Iron oxide + copper oxide. D) Magic. Show Answer Correct Answer: A) Iron oxide + copper. 41. Molecules are close together but are not held so rigidly in position and can move past one another. A) Gas. B) Solid. C) Liquid. D) None of above. Show Answer Correct Answer: C) Liquid. 42. The branch of chemistry that would study enzymes used in the digestion of food is ..... A) Physical Chemistry. B) Theoretical chemistry. C) Inorganic Chemistry. D) Biochemistry. Show Answer Correct Answer: D) Biochemistry. 43. How are mixtures combined? A) Chemically. B) Electrically. C) Physically. D) Uniform. Show Answer Correct Answer: C) Physically. 44. What is the term for combining 2 or more DIFFERENT atoms together? A) Molecules. B) Compounds. C) Elements. D) Atoms. Show Answer Correct Answer: B) Compounds. 45. If the atoms that share electrons have an unequal attraction for the electrons, the bond is called A) Polar. B) Dipolar. C) Ionic. D) Nonpolar. Show Answer Correct Answer: A) Polar. 46. An aluminum pie plate is an example of: A) Mixture of solids. B) Solute. C) Element. D) None of above. Show Answer Correct Answer: C) Element. 47. What type of electrons form bonds? A) Nucleus Electrons. B) Ionic Electrons. C) Valence Electrons. D) Covalent Electrons. Show Answer Correct Answer: C) Valence Electrons. 48. Which of the following is the metallic ion in scandium (II) chloride? A) Cl 2-. B) Sc 2+. C) Sc 2-. D) Cl 2+. Show Answer Correct Answer: B) Sc 2+. 49. Vanadium is different from sodium because it A) Has more than one oxidation number. B) Can conduct electricity. C) Is not a metal. D) None of above. Show Answer Correct Answer: A) Has more than one oxidation number. 50. Air is an example of a(n) A) Heterogenous mixture. B) Homogenous mixture. C) Element. D) Compound. Show Answer Correct Answer: B) Homogenous mixture. 51. Amount of matter that an object contains A) Density. B) Mass. C) Weight. D) Volume. Show Answer Correct Answer: B) Mass. 52. Is anything that has mass and takes up volume. A) Metric system. B) Homogeneous. C) Matter. D) Heterogeneous. Show Answer Correct Answer: C) Matter. 53. A teacher mixes a white powder into a beaker of water. The powder cannot be seen in the water. The teacher then heats the mixture until the water evaporates and the powder can be seen again. Which property of the powder is the teacher demonstrating? (5.5A) A) Hardness. B) Solubility. C) Mass. D) Density. Show Answer Correct Answer: B) Solubility. 54. Metal T is in Group 1 of the Periodic Table of Elements. Which formula represents the oxide of T A) TO. B) T2O. C) T2O3. D) TO2. Show Answer Correct Answer: B) T2O. 55. Short hand representation for the atom of a specific element A) Element. B) Atom. C) Symbol. D) None of above. Show Answer Correct Answer: C) Symbol. 56. Which is the correct general formula for the alkanes? A) CnH2n+2. B) CnH2n+1COOH. C) CnH2n. D) CnH2n+1OH. Show Answer Correct Answer: A) CnH2n+2. 57. What are the positively charged particles in an atom called? A) Protons. B) Neutrons. C) Electrons. D) Nucleus. Show Answer Correct Answer: A) Protons. 58. What is the chemical formula for sodium sulfate? A) NaSO. B) Na2S2O. C) Na4SO2. D) Na2SO4. Show Answer Correct Answer: D) Na2SO4. 59. This ranges from 0 to 6 on a Ph scale A) Acid. B) Base. C) Neutral. D) Element. Show Answer Correct Answer: A) Acid. 60. Which list has the types of mixtures ordered from largest particle size to smallest? A) Suspension, colloid, and solution. B) Solution, suspension, and colloid. C) Colloid, solution, and suspension. D) Solution, colloid, and suspension. Show Answer Correct Answer: A) Suspension, colloid, and solution. ← PreviousNext →Related QuizzesChemistry QuizzesScience QuizzesChemistry Quiz 1Chemistry Quiz 2Chemistry Quiz 3Chemistry Quiz 5Chemistry Quiz 6Chemistry Quiz 7Chemistry Quiz 8Chemistry Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books