Which one has the highest melting point and boiling point?
Correct answer: C. Covalent crystal
- A. Ionic crystal
- B. Molecular crystal
- C. Covalent crystal
- D. Metallic crystal
Explanation
Covalent crystals, due to the strong covalent bonds holding their structures together, typically exhibit the highest melting and boiling points among the given options. Therefore, option c is correct.
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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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