Which of the following solids is an example of a substance with a macromolecular structure?
Correct answer: D. Silicon (IV) oxide
- A. Aluminium chloride
- B. Ice
- C. Magnesium oxide
- D. Silicon (IV) oxide
- E. Sodium chloride
Explanation
SiO2 has a macromolecular structure only among the compounds above. While other compounds possess a simple molecular structure, hence D is the correct option.
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About Crystalline Solids
Crystalline solids contain particles arranged in a regular repeating lattice described by a unit cell. Their study includes coordination number, packing efficiency, density, anisotropy, cleavage, polymorphism and common crystal systems, along with ionic, molecular, covalent network and metallic crystals. Crystalline order differs from the random arrangement of amorphous solids.
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