Which one has the highest melting point :
Correct answer: C. Covalent crystal
- A. Ionic crystal
- B. Molecular crystal
- C. Covalent crystal
- D. Metallic crystal
Explanation
Covalent crystals may have network structure,therefore, they have high melting points.
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About Ionic and Molecular Crystals
Ionic crystals contain oppositely charged ions held by electrostatic forces, whereas molecular crystals contain discrete molecules joined by weaker intermolecular forces. Their structures explain differences in melting point, hardness, volatility, solubility and electrical conductivity, especially between solid and molten states.
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