This quiz works best with JavaScript enabled. Home > General Knowledge > Science > Chemistry > Chemistry – Quiz 17 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Chemistry Quiz 17 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. An arrangement of the elements according to their atomic numbers so that elements with similar properties are in the same column and properties repeat from row to row A) Atomic Theory. B) Isotopes. C) Subatomic Particles. D) Periodic Table of Elements. Show Answer Correct Answer: D) Periodic Table of Elements. 2. Which is not a type of elements? A) Metals. B) Gases. C) Metalloids. D) Non Metals. Show Answer Correct Answer: B) Gases. 3. Which of the following elements has a complete outer shell? A) Sulfur. B) Fluorine. C) Neon. D) Sodium. Show Answer Correct Answer: C) Neon. 4. A covalent bond forms when A) Valence electrons are shared. B) Electrons are gained or lost. C) Polar molecules are attracted to one another. D) None of the above. Show Answer Correct Answer: A) Valence electrons are shared. 5. What is the name of an element that has a charge? A) Isotope. B) Atom. C) Ion. D) None of above. Show Answer Correct Answer: C) Ion. 6. What experiment led to the discovery of the electron? A) Oil-drop experiment. B) Cathode ray tube experiment. C) Plum pudding experiment. D) Gold foil experiment. Show Answer Correct Answer: B) Cathode ray tube experiment. 7. The most abundant rare gas in the atmosphere is? A) Ar. B) He. C) Ne. D) Xe. Show Answer Correct Answer: A) Ar. 8. Isotopes are the same elements with different number of ..... A) Protons. B) Electrons. C) Atoms. D) Neutrons. Show Answer Correct Answer: D) Neutrons. 9. The macromolecules DNA and RNA are ..... A) Proteins. B) Nucleic acids. C) Lipids. D) Carbohydrates. Show Answer Correct Answer: B) Nucleic acids. 10. This is the organized chart of elements. A) Periodic Table of Elements. B) Periodic Chart of Elements. C) Periodic Graph of Elements. D) None of these. Show Answer Correct Answer: A) Periodic Table of Elements. 11. Which of the following intermolecular force present in CHF3? A) Ionic. B) H-bond. C) Dispersion. D) Dipole-dipole. Show Answer Correct Answer: D) Dipole-dipole. 12. The monomer of a protein is a(n) ..... A) Nucleotides. B) Amino acids. C) Monosaccharides. D) Lipids. Show Answer Correct Answer: B) Amino acids. 13. The saltiness of seawater is the result of this property A) Reactivity. B) Composition. C) Solubility. D) None of above. Show Answer Correct Answer: C) Solubility. 14. # neutrons + # protons = ..... A) Valence Electrons. B) Mass Number. C) Atomic number. D) Atomic thing. Show Answer Correct Answer: B) Mass Number. 15. What is the mass in grams of 6.25 mol of copper (II) nitrate? A) 785 g. B) 126 g. C) 625 g. D) 1172 g. Show Answer Correct Answer: D) 1172 g. 16. Different atoms and/or molecules combined but not bonded A) Element. B) Compound. C) Mixture. D) Protons. Show Answer Correct Answer: C) Mixture. 17. The electron configuration of an atom is 1s22s22p6. The number of electrons in the atom is A) 6. B) 3. C) 8. D) 10. Show Answer Correct Answer: D) 10. 18. Most halogen form compounds by A) Gaining an electron to form a negative ion. B) Losing an electron to form a positive ion. C) Losing protons. D) Joining with both calcium and carbon. Show Answer Correct Answer: A) Gaining an electron to form a negative ion. 19. Which acid is present in lemon? A) Citric acid. B) Marlic acid. C) Tartaric acid. D) Lactic acid. Show Answer Correct Answer: A) Citric acid. 20. What is a mixture of potassium nitrate powdered charcoal and sulphur called? A) Brass. B) Gun powder. C) Aluminium. D) Paint. Show Answer Correct Answer: B) Gun powder. 21. Bases have a pH of ..... A) 1-6. B) 8-14. C) 7. D) 0. Show Answer Correct Answer: B) 8-14. 22. A substance with a pH of 8 has a pOH of A) 10. B) 8. C) 6. D) 2. Show Answer Correct Answer: C) 6. 23. Equal masses of oxygen, hydrogen and methane are kept under identical conditions. The ratio of the volumes of gases will be A) 2 : 16 : 2. B) 1 : 16 : 2. C) 2 : 16 : 1. D) 1 : 1 : 1. Show Answer Correct Answer: B) 1 : 16 : 2. 24. What element contains 26 protons? A) Aluminum. B) Iron. C) Helium. D) Sodium. Show Answer Correct Answer: B) Iron. 25. What does DNA stand for? A) Deoxyribonucleic Acid. B) Dubstep Nucleic Acid. C) Harambe. D) Deoxygen Nucleic Acid. Show Answer Correct Answer: A) Deoxyribonucleic Acid. 26. The major component used in preparation of different types of glasses is A) Calcium silicate. B) Silica. C) Sodium silicate. D) Sodium borate. Show Answer Correct Answer: B) Silica. 27. Which biomolecule contains pastas and breads? A) Protein. B) Carbohydrate. C) Nucleic Acid. D) Lipid. Show Answer Correct Answer: B) Carbohydrate. 28. Subatomic particles with a positive charge A) Neutrons. B) Protons. C) Atomic mass. D) Isotopes. Show Answer Correct Answer: B) Protons. 29. What is the branch of physics that is relevant to chemistry in terms of how thermal energy converted to and from other forms of energy and how it affects matter? A) Spontaneity. B) Thermodynamics. C) Radio dynamics. D) Thermostat. Show Answer Correct Answer: B) Thermodynamics. 30. An example of a gas is A) A rock. B) A pencil. C) Carbon dioxide. D) Water. Show Answer Correct Answer: C) Carbon dioxide. 31. Which of the following has the weakest intermolecular forces? A) CH3F. B) C2H6. C) C3H8. D) CH4. Show Answer Correct Answer: D) CH4. 32. Which compound has the smallest molar mass? A) CO2. B) H2O. C) H2O2. D) CO. Show Answer Correct Answer: B) H2O. 33. An atom of neon has 8 valence electrons. What will an atom of neon MOST likely do to be stable? A) Lose 8 electrons. B) Lose 2 electrons. C) Neither gain nor lose any valence electrons. D) Gain 1 electron. Show Answer Correct Answer: C) Neither gain nor lose any valence electrons. 34. How many electrons can occupy the first main energy level of an atom? A) 32. B) 18. C) 2. D) 8. Show Answer Correct Answer: C) 2. 35. A neutral solution has a pH of A) 1. B) 10. C) 7. D) 4. Show Answer Correct Answer: C) 7. 36. Enzymes bring about their effect on the rate of reaction by A) Lowering the energy of the reactants. B) Lowering the activation energy. C) Lowering the energy of the products. D) Increasing activation energy. Show Answer Correct Answer: B) Lowering the activation energy. 37. The dissolving materials in solution A) Solution. B) Solute. C) Saturated solution. D) Solvent. Show Answer Correct Answer: D) Solvent. 38. What type of particle is:KCl A) Ion. B) Molecule. C) Formula Unit. D) Atom. Show Answer Correct Answer: C) Formula Unit. 39. Which of the following is ONE of the signs of a chemical reaction? A) Gas production. B) Water changing to water vapour. C) Butter melting. D) Ice changing to water. Show Answer Correct Answer: A) Gas production. 40. A type of matter in which the electrons have been completely or partially separated from the atoms is a A) Plasma. B) Gas. C) Liquid. D) Solid. Show Answer Correct Answer: A) Plasma. 41. Which noble gas has the highest boiling point? A) He. B) Kr. C) Ar. D) Xe. Show Answer Correct Answer: A) He. 42. It is the made of particles that give its mass and volume A) Phase transition. B) Physical properties. C) Matter. D) Chemical properties. Show Answer Correct Answer: C) Matter. 43. What is the common name for H2O? A) Acid. B) Water. C) Base. D) Salt. Show Answer Correct Answer: B) Water. 44. Which of the following will have a larger radius than Zinc? A) Gallium. B) Aluminum. C) Magnesium. D) Strontium. Show Answer Correct Answer: D) Strontium. 45. Which metal is heaviest? A) Nickle. B) Mercury. C) Iron. D) Osmium. Show Answer Correct Answer: D) Osmium. 46. The main chemical constituent of clay is? A) Aluminium silicate. B) Aluminium borosilicate. C) Zeolites. D) Silicon oxide. Show Answer Correct Answer: A) Aluminium silicate. 47. Moving to the right on the periodic table increases the ..... A) Electron rings. B) Valence electrons. C) Periodic. D) More protons. Show Answer Correct Answer: B) Valence electrons. 48. The graphite rods in the nuclear reactor A) Undergo combustion which triggers the nuclear fission. B) React with U to release energy. C) Convert fast moving neutrons into thermal neutrons. D) Produce neutrons. Show Answer Correct Answer: C) Convert fast moving neutrons into thermal neutrons. 49. Which of these recorded observations is qualitative, rather than quantitative? A) The compound melts at 87.5C. B) The solid has a mass of 23.4 g. C) Iron is denser than aluminum. D) A chemical reaction is complete in 2.3 s. Show Answer Correct Answer: C) Iron is denser than aluminum. 50. The substance that contains the maximum amount of nitrogen is? A) Ammonium Sulphate. B) Urea. C) Ammonium Chloride. D) Ammonium Nitrate. Show Answer Correct Answer: B) Urea. 51. The metal that is used as a catalyst in the hydrogenation of oils is? A) Pt. B) Pb. C) Cu. D) Ni. Show Answer Correct Answer: D) Ni. 52. Which of the following is NOT an example of chemical change? A) Rust. B) Sour milk. C) Sharpening a pencil. D) Burning wood. Show Answer Correct Answer: C) Sharpening a pencil. 53. Mass number of a nucleus is A) Always less than its atomic number. B) Always more than the atomic weight. C) The sum of the number of protons and neutrons present in the nucleus. D) None of these. Show Answer Correct Answer: C) The sum of the number of protons and neutrons present in the nucleus. 54. Speed up chemical reactions A) Catalysts. B) Acids. C) Salts. D) Hormones. Show Answer Correct Answer: A) Catalysts. 55. Matter that has a definite shape and a definite volume is A) A gas. B) A liquid. C) A element. D) A solid. Show Answer Correct Answer: D) A solid. 56. Compounds that form hydrogen ions in solution is A) An acid. B) A proton. C) A solution. D) A base. Show Answer Correct Answer: A) An acid. 57. Compounds containing one or more benzene rings are called A) Alkanes. B) Alliphatic compounds. C) Alicyclic compounds. D) Aromatic compounds. Show Answer Correct Answer: D) Aromatic compounds. 58. A separation technique where each component or solute is isolated on different affinities to mobile phase A) Liquid-liquid extraction. B) Distillation. C) Centrifugation. D) Chromatography. Show Answer Correct Answer: D) Chromatography. 59. A particle that moves around the nucleus is a(n) ..... A) Proton. B) Quark. C) Electron. D) Neutron. Show Answer Correct Answer: C) Electron. 60. The names of the scientists, Newlands, Mendeleev, and Meyer are associated with the development of A) Metallurgy. B) Atomic structure. C) Discovery of elements. D) Periodic table of contents. Show Answer Correct Answer: D) Periodic table of contents. ← PreviousNext →Related QuizzesScience QuizzesGeneral Knowledge 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