At room temperature, `CO_(2)` is a gas while `SiO_(2)` is a solid because

Options

A. `CO_(2)` is a linear molecule, while `SiO_(2)` is angular
B. van der Waals's forces are very strong in `SiO_(2)`
C. `CO_(2)` is covalent, while `SiO_(2)` is ionic
D. Si cannot form stable bonds with O, hence Si has to form a 3D lattice

Answer

D