CO_2 is gas, while SiO_2 is solid because: - Vidyadip

MCQ

$\ce{CO_2}$ is gas, while $\ce{SiO_2}$ is solid because:

A
$\mathrm{CO}_2$ is a linear molecule, while $\mathrm{SiO}_2$ is angular.
B
van der Waals' forces are very strong in $\mathrm{SiO}_2$.
C
$\mathrm{CO}_2$ is covalent, while $\mathrm{SiO}_2$ is ionic.
✓
$Si$ cannot form stable bonds with $O$, hence $Si$ has to form a $3D$ lattice.

✓

Answer

Correct option: D.

$Si$ cannot form stable bonds with $O$, hence $Si$ has to form a $3D$ lattice.

$\ce{SiO_2}$ is solid because $Si$ cannot form stable bonds with $O$, hence $Si$ has to form a $3D$ lattice of $\ce{SiO_2}$ molecules and form solid structure.

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