Bonding & Structure PDF - Practice Questions

1. Ionic bonding typically occurs between which types of elements? * (A) Two non-metals * (B) A metal and a non-metal * (C) Two metals * (D) Noble gases 2. Covalent bonding typically occurs between which types of elements? * (A) Two non-metals * (B) A metal and a non-metal * (C) Two metals * (D) No...

1. Ionic bonding typically occurs between which types of elements? * (A) Two non-metals * (B) A metal and a non-metal * (C) Two metals * (D) Noble gases 2. Covalent bonding typically occurs between which types of elements? * (A) Two non-metals * (B) A metal and a non-metal * (C) Two metals * (D) Noble gases and non-metals 3. In ionic bonding, atoms achieve a noble gas con guration by: * (A) Sharing electrons * (B) Transferring electrons * (C) Delocalizing electrons * (D) Forming dative bonds 4. In covalent bonding, atoms achieve a noble gas con guration by: * (A) Sharing electrons * (B) Transferring electrons * (C) Delocalizing electrons * (D) Forming ionic bonds 5. What is a cation? * (A) A negatively charged ion * (B) A positively charged ion * (C) A neutral atom * (D) A shared pair of electrons 6. What is an anion? * (A) A positively charged ion * (B) A negatively charged ion * (C) A neutral atom * (D) A delocalized electron 7. Which statement best describes metallic bonding? * (A) Electrostatic attraction between oppositely charged ions. * (B) Sharing of electron pairs between atoms. fi fi * (C) Electrostatic attraction between positive ions and delocalized electrons. * (D) Sharing of electrons where both electrons come from the same atom. 8. What is meant by a "delocalized" electron? * (A) An electron that is tightly held to one atom * (B) An electron that is shared between two atoms * (C) An electron that is free to move throughout a structure * (D) An electron that has been transferred from one atom to another 9. What type of bond is formed when both electrons in the shared pair come from the *same* atom? * (A) Ionic bond * (B) Metallic bond * (C) Dative covalent bond * (D) Normal covalent bond 10. Which of the following is a characteristic property of ionic compounds? * (A) Low melting point * (B) High melting point * (C) Good conductor of electricity in the solid state * (D) Exists as individual molecules 11. Which of the following is a characteristic property of metals? * (A) Brittle *(B) Poor conductor of heat * (C) Malleable *(D) Low melting point 12. Diamond is an example of a substance with what type of structure? * (A) Giant ionic * (B) Giant covalent * (C) Simple molecular * (D) Metallic 13. Graphite is an example of what type of structure? * (A) Giant ionic *(B) Simple molecular * (C) Giant covalent * (D) Metallic 14. Sodium chloride is an example of what type of structure? * (A) Giant ionic * (B) Giant covalent * (C) Simple molecular * (D) Metallic 15. What type of structure does SiO2 (silicon dioxide) generally exhibit? * (A) Giant Covalent. *(B) Simple molecular. * (C) Ionic lattice *(D) Metallic 16. In a covalent bond, as the bond order (number of shared electron pairs) increases, the bond length generally: * (A) Increases * (B) Decreases * (C) Remains the same *(D) Varies randomly 17. In a covalent bond, as the bond order increases, the bond strength generally: * (A) Increases *(B) Decreases * (C) Remains the same *(D) Varies randomly 18. A double covalent bond consists of how many shared electrons? * (A) 1 * (B) 2 * (C) 4 * (D) 6 19. A triple covalent bond consists of how many shared electrons * (A) 2 *(B) 3 *(C) 4 *(D) 6 20. Which of the following is the best description of electronegativity? * (A) The ability of an atom to attract the shared pair of electrons in a covalent bond. * (B) The ability of an atom to gain an electron and form a negative ion. * (C) The ability of an atom to lose an electron and form a positive ion. * (D) The overall charge of a molecule. 21. Which element is the *most* electronegative? * (A) Sodium * (B) Chlorine * (C) Fluorine * (D) Oxygen 22. In a polar covalent bond, the more electronegative atom will have a: * (A) δ+ (delta positive) charge * (B) δ- (delta negative) charge * (C) Full positive charge * (D) Full negative charge 23. Which of these compounds contains ionic bonding? * (A) CO2 *(B) H2O *(C) NaCl *(D) CH4 24. Which of these compounds contain covalent bonding? * (A) MgO * (B) KBr *(C) NH3 *(D) NaF 25. Which of the following does NOT conduct electricity? * (A) Molten sodium chloride * (B) Solid sodium chloride * (C) Graphite * (D) Copper 26. What is the formula of the compound formed between calcium (Ca) and chlorine (Cl)? * (A) CaCl * (B) CaCl2 * (C) Ca2Cl *(D) Ca2Cl2 27. True or False: All giant covalent structures have high melting and boiling points. * (A) True * (B) False 28. True or False: All ionic compounds are solids at room temperature. * (A) True * (B) False 29. A diatomic molecule is made up of how many atoms? * (A) 1 * (B) 2 * (C) 3 * (D) 4 30. Which of the following substances is likely to have the highest melting point? * (A) H₂O * (B) NaCl * (C) CH₄ * (D) CO₂