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Chemistry · May / June 2025 · Paper 12 · Question 26

5070Metallic bonding

Substance X has the following properties. ● melting point 1237 °C ● boiling point 2595 °C ● malleable ● good electrical and thermal conductivity at r.t.p. What is the structure of substance X?

  1. Agiant covalent
  2. Bgiant ionic lattice
  3. Cgiant metallic lattice
  4. Dsimple molecular

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Correct answer: C. giant metallic lattice

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