Metallic bonding and giant structures Quiz
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5 questions, one answer each
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1. Which structure has a high melting temperature, does not conduct as a solid but conducts when molten?
- A. Giant metallic
- B. Giant ionic
- C. Giant covalent
- D. Simple molecular
2. Why does diamond not conduct electricity?
- A. Its layers are too far apart
- B. It contains negative ions
- C. All four outer electrons of each carbon are used in covalent bonds
- D. It has weak intermolecular forces
3. What is overcome when ice melts?
- A. Covalent bonds within H₂O molecules
- B. Hydrogen bonds between H₂O molecules
- C. Ionic bonds
- D. Metallic bonds
4. Which property of graphite is explained by delocalised electrons?
- A. Softness
- B. Electrical conductivity
- C. Insolubility in water
- D. High density
5. A solid melts at 1710 °C, is very hard and does not conduct electricity even when molten. It is most likely:
- A. Giant metallic
- B. Simple molecular
- C. Giant ionic
- D. Giant covalent