Ceramic compounds as compared to metallic compounds ____________________ ?
Correct answer: C. Have higher melting temperature
- A. Crystallise faster
- B. Resist greater tensile stress at room temperature
- C. Have higher melting temperature
- D. Are better conductor of electricity at higher temperature
Explanation
Ceramics are held together by strong ionic or covalent bonds, giving them generally higher melting temperatures than metallic materials. They are usually poor electrical conductors at room temperature, even though some conduct better at elevated temperatures.
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