C4 And C5 Multiple Choice Revision Quiz
Download as DOC, PDF2 likes2,699 views
This document contains a 20 question multiple choice quiz about concepts related to atomic structure, bonding, and compounds. The questions cover topics like ionic bonding, metallic bonding, properties of ionic and covalent compounds, electron configuration, and electrolysis.
C4 And C5 Multiple Choice Revision Quiz
- 1. Modules C4/C5 - Multiple choice revision quiz 1. Which one of the following pairs atoms is most likely to form an ionic bond? A. Na and F B. O and F C. N and F D. C and F 2. Aluminium is in Group III. The oxide ion has the formula O2- . Aluminium oxide will have the formula... A. AlO B. AlO2 C. Al2O3 D. Al3O2 3. Which of the following statements about sodium chloride is incorrect? A. it has a high melting point B. it conducts electricity at room temperature C. it is soluble in water D. it is brittle 4. The structure normally associated with ionic bonding is... A. a giant lattice B. a simple molecule C. a giant molecule D. a regular arrangement of ions surrounded by a sea, or cloud, of electrons 5. Which of the following does not have a giant structure? A. Diamond B. Graphite C. Iodine D. Silicon dioxide 6. Which one of the following is not true of metallic bonding? A. it gives rise to excellent electrical conductivity B. electrons are free to move throughout the structure C. the strength of metallic bonds increases down a group D. the strength of metallic bonding affects the boiling point of metals 7. Which of the following equations represents reduction? A. C + O2 CO2 B. Al3+ + 3e- Al C. 2O2- O2 + 2e- D. 2H2+ O2 2H2O 8. Which statement about atomic structure is incorrect? A. The proton (atomic) number gives the number of protons in an atom or ion B. For an element the number of electrons is the same as the number of protons C. The number of protons is different in an isotope of an element D. The number of neutrons can be worked out by subtracting the atomic number from the mass number 9. Which statement about the Halogens is incorrect? A. They exist as diatomic molecules like Cl2 B. They have 7 electrons in the outer shell C. The reactivity decreases down the group D. They form positive ions in reactions 10. Which statement about sodium is incorrect? A. It burns with a purple flame B. It reacts with water to form an alkaline hydroxide C. It forms positive ions D. It is a soft metal
- 2. 11. Which of the following statements best explains why silicon dioxide has a high melting point? A. It has a giant ionic structure with strong electrostatic attraction between ions B. It has a giant covalent structure with strong covalent bonds between atoms C. It has a simple molecular structure with weak forces between molecules D. It has a giant metallic structure with a strong attraction between positive ions and the sea of electrons 12. Which of the following is not a property of ionic compounds? A. Conduct electricity in solid form B. High melting point C. Regular crystal arrangement D. Highly soluble in water 13. Which of the following is not true about covalent compounds? A. They are formed when non-metals bond together B. All covalent compounds have high melting points C. Covalent bonds are formed when electrons are shared D. Covalent compounds don’t conduct electricity in any form 14. Which of the following contain covalent bonds (more than one answer may be right)? A. O2 B. NaCl C. Mg D. SiO2 E. Au F. LiBr 15. Carbon is the main element present in molecules in the biosphere. How many bonds does an atom of carbon form? A. 2 B. 3 C. 4 D. 5 16. Which element is present in proteins but not in carbohydrates? A. Carbon B. Hydrogen C. Oxygen D. Nitrogen 17. Which of the following statements about electrolysis is incorrect? A. Electrolysis only works when the electrolyte is molten or in solution B. Electrolysis is used to extract reactive metals C. Electrolysis causes no pollution D. Electrolysis is a continuous process 18. Which of the following is the electron arrangement of an element in group I? A. 2,8 B. 2,8,1 C. 2 D. 2,8,8 19. Which of the following is the electron arrangement of an ion of a group I metal? A. 2,8 B. 2,8,1 C. 2,8,2 D. 2,8,3 20. Which of the following gives the best explanation for the fact that sodium chloride has a regular crystal arrangement? A. It contains ionic bonds which are very strong B. It contains a regular 3D arrangement of positive and negative ions C. It contains ions D. The ions are free to move