Chemistry 9701 · AS & A Level · Chemical bonding

Chemical bonding — practice question

Solid carbon dioxide, $\text{CO}_2$, has a structure like that of solid iodine, $\text{I}_2$. Which statement concerning solid $\text{CO}_2$ and solid $\text{SiO}_2$ is correct?

  • ABoth solid $\text{CO}_2$ and solid $\text{SiO}_2$ exist in a lattice structure.
  • BBoth solid $\text{CO}_2$ and solid $\text{SiO}_2$ have a simple molecular structure.
  • CBoth solid $\text{CO}_2$ and solid $\text{SiO}_2$ have atoms joined by single covalent bonds.
  • DBoth solid $\text{CO}_2$ and solid $\text{SiO}_2$ change spontaneously to gas at s.t.p.

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