Ionic Compounds Quiz
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5 questions, one answer each
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1. What best describes the structure of an ionic compound?
- A. A single molecule of ions
- B. A giant structure of ions held by electrostatic forces
- C. A lattice of atoms held by covalent bonds
- D. A cloud of delocalised electrons
2. Which compound is the standard example of ionic structure on this spec?
- A. Water
- B. Sodium chloride
- C. Diamond
- D. Methane
3. In sodium chloride, in how many directions do the electrostatic forces of attraction act?
- A. One direction only
- B. Two directions
- C. All directions
- D. None — the ions repel
4. Which statement about sodium chloride is correct?
- A. It exists as separate NaCl molecules
- B. It is a giant lattice with no fixed 'molecule' unit
- C. It is held together by covalent bonds
- D. It contains delocalised electrons
5. Why does an ionic lattice need a large amount of energy to break apart?
- A. Because covalent bonds must be broken
- B. Because strong electrostatic forces act between ions in every direction throughout the structure
- C. Because the ions are very light
- D. Because the lattice contains no charge