11.53 CO2 is gas while SiO2 is solid at room temperature. Give reason.

The molecules of CO2 are held together by weak van der Waals forces of attraction which can be easily overcome by collisions of the molecules at room temperature. Consequently, CO2 is a gas. On the other hand, silicon atom forms four single covalent bonds with O-atom which are tetrahedrally arranged and form a three-dimensional structure. Thus, SiO2 is a high melting solid.

11.53 CO₂ is gas while SiO₂ is solid at room temperature. Give reason.

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Vishal Baghel | Contributor-Level 10

8 months ago

The molecules of CO₂ are held together by weak van der Waals forces of attraction which can be easily overcome by collisions of the molecules at room temperature. Consequently, CO₂ is a gas.
On the other hand, silicon atom forms four single covalent bonds with O-atom which are tetrahedrally arranged