which of the following is a non-crystalline solid pair?
Correct answer: C. wood, glass
- A. diamond, wood
- B. glass, table salt
- C. wood, glass
- D. sucrose. glass
Explanation
Wood and glass are amorphous, or non-crystalline, solids because their particles lack a regular long-range arrangement. The likely mistake is choosing diamond and wood, but diamond has a highly regular crystal lattice.
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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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