This quiz works best with JavaScript enabled. Home > Science > Chemistry > Chemistry Basics > Chemistry – Quiz 11 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Chemistry Quiz 11 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The study of Earth's atmospheric ozone and the effect of chlorofluorocarbons on ozone is an example of ..... A) Technology. B) Applied research. C) Basic research. D) Theoretical research. Show Answer Correct Answer: B) Applied research. 2. 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. 3. 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. 4. Multicellular means A) Made of 3 cells. B) Made of 1 kind of cell. C) Made of only 1 cell. D) Made of 2 or more cells. Show Answer Correct Answer: D) Made of 2 or more cells. 5. Elements are found in ..... (solid earth) A) Lithosphere. B) Biosphere. C) Hydrosphere. D) Universe. Show Answer Correct Answer: A) Lithosphere. 6. Which of the following solutions has the highest H ion concentration? A) A solution with a pH of 1. B) A solution with a pH of 4. C) A solution with a pH of 7. D) A solution with a pH of 10. Show Answer Correct Answer: A) A solution with a pH of 1. 7. A mixture that is NOT evenly distributed is called ..... A) Compounded. B) Homogenous. C) Heterogenous. D) Salty. Show Answer Correct Answer: C) Heterogenous. 8. Metals that react quickly/strongly with water and acids are called? A) Reactive. B) Unreactive. C) Dangerous. D) Corrosive. Show Answer Correct Answer: A) Reactive. 9. 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) 0.62g. B) 0.621g. C) 40.3g. D) 40.25g. Show Answer Correct Answer: C) 40.3g. 10. Which compound is an amide? A) CH3COOCH3. B) CH3CONH2. C) CH3NH2. D) CH2(NH2)COOH. Show Answer Correct Answer: B) CH3CONH2. 11. A forensic scientist would be a specific type of this chemist. A) Organic. B) Inorganic. C) Analytical. D) Physical. Show Answer Correct Answer: C) Analytical. 12. Electrons A) No charge, nucleus. B) Positive charge, nucleus. C) Negative charge, shells. D) Negative charge, nucleus. Show Answer Correct Answer: C) Negative charge, shells. 13. 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. 14. 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. 15. What is the type of mechanism and an important feature of the reaction between C(CH3)3Br and aqueous NaOH? A) SN1, a transition state. B) SN1, an intermediate. C) SN2, a transition state. D) SN2, an intermediate. Show Answer Correct Answer: B) SN1, an intermediate. 16. Which of the following statements about atoms is TRUE? A) An atom is a blob of gelatinous goo. B) An atom is bigger than a molecule. C) An atom is made of many molecules. D) An atom is a basic piece of matter. Show Answer Correct Answer: D) An atom is a basic piece of matter. 17. The mass of a lead cube is 64 grams. This is an example of A) Physical intensive property. B) Physical extensive property. C) Chemical change. D) Physical change. Show Answer Correct Answer: B) Physical extensive property. 18. 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) Energy. B) Atoms. C) Mass. D) Momentum. Show Answer Correct Answer: C) Mass. 19. 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. 20. What is the measuring unit for mass? A) Centimeter. B) Millimeter. C) Grams. D) Pounds. Show Answer Correct Answer: C) Grams. ← PreviousNext →Related QuizzesChemistry QuizzesScience QuizzesChemistry Quiz 1Chemistry Quiz 2Chemistry Quiz 3Chemistry Quiz 4Chemistry Quiz 5Chemistry Quiz 6Chemistry Quiz 7Chemistry Quiz 8 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books