This quiz works best with JavaScript enabled. Home > Science > Chemistry > Chemistry – Quiz 20 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Chemistry Quiz 20 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which of the following type of intermolecular forces is the result of temporary uneven distribution of electrons around molecules that result in monetary dipoles? A) Dipole-dipole forces. B) Hydrogen bonding. C) Hydrogen bonding. D) London dispersion forces. Show Answer Correct Answer: D) London dispersion forces. 2. What are the basic building blocks for all matter? A) Atoms. B) Elements. C) Compounds. D) Chemicals. Show Answer Correct Answer: A) Atoms. 3. The following are the half lives of four active isotopes. Which one of the following is the most dangerous to handle? A) 0.01 minute. B) 13 days. C) 100 years. D) 3 billion years. Show Answer Correct Answer: A) 0.01 minute. 4. Ionic bonds form between metals and ..... A) Metalloids. B) Metals. C) Nonmetals. D) None of above. Show Answer Correct Answer: C) Nonmetals. 5. The ionisation energy of hydrogen atom in the ground state is x KJ. The energy required for an electron to jump from 2nd orbit to 3rd orbit is A) 5x. B) X/6. C) 7.2 x. D) 5x/36. Show Answer Correct Answer: D) 5x/36. 6. In CHNOPS, what does the P stand for? A) Potassium. B) Phosphorus. C) Platinum. D) Polonium. Show Answer Correct Answer: B) Phosphorus. 7. A collection of atoms of one type that cannot be broken down into simpler substances by ordinary chemical or physical means A) Element. B) Subatomic particle. C) Electron. D) None of above. Show Answer Correct Answer: A) Element. 8. A chemical formula includes the symbols of the elements in the compound and the subscripts that indicates the A) Formula mass. B) Atomic mass of each element. C) Charges of the elements or ions. D) Number of atoms or ions of each element. Show Answer Correct Answer: D) Number of atoms or ions of each element. 9. What is the common name for NaCl? A) Salt. B) Acid. C) Base. D) Water. Show Answer Correct Answer: A) Salt. 10. Hydrocarbons will have which type of intermolecular forces? A) Dispersion. B) Dipole. C) Hydrogen bonds. D) None of above. Show Answer Correct Answer: A) Dispersion. 11. Anything that takes up space and has mass is called ..... A) Matter. B) Solid. C) Color. D) Atoms. Show Answer Correct Answer: A) Matter. 12. Butter, shortening, and all animal fats are examples of A) Saturated fats. B) Unsaturated fats. C) Proteins. D) Carbohydrates. Show Answer Correct Answer: A) Saturated fats. 13. What is the atomic number for the element Rh? A) 103. B) 45. C) 148. D) 44. Show Answer Correct Answer: B) 45. 14. Dissolved particles in a true solution A) Are visible to the eye. B) Cannot be removed by filtration. C) Are always liquids. D) Will settle when standing. Show Answer Correct Answer: B) Cannot be removed by filtration. 15. Which of the following is not a clue that a chemical change is taking place? A) Rapid release of energy (heat, light, or sound). B) Phase change. C) Formation of bubbles. D) Formation of a precipitate from solution. Show Answer Correct Answer: B) Phase change. 16. The most commonly used bleaching agent is A) Alcohol. B) Chlorine. C) Carbon dioxide. D) Sodium chlorine. Show Answer Correct Answer: B) Chlorine. 17. Which group of elements are located in the middle of elements A) Transition metals. B) Inner transition metals. C) Semi metals. D) Non-metals. Show Answer Correct Answer: A) Transition metals. 18. An atom is made up of which of the following subatomic particles A) Protons, neutrinos, electrons. B) Protons, positrons, neutrons. C) Protons, neutrons, electrons. D) Electrons, positrons, neutrinos. Show Answer Correct Answer: C) Protons, neutrons, electrons. 19. The attraction between molecules of different kinds is known as ..... A) Adhesion. B) Cohesion. C) Surface tension. D) None of above. Show Answer Correct Answer: A) Adhesion. 20. This group of macromolecules including fats, oils, waxes, and steroids. A) Nucleic acids. B) Carbohydrates. C) Proteins. D) Lipids. Show Answer Correct Answer: D) Lipids. ← PreviousNext →Related QuizzesScience QuizzesChemistry Quiz 1Chemistry 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