At 25°C CO₂ is a gas and SiO₂ is a high-melting solid.In these compounds of oxygen A)both carbon in CO₂ and silicon in SiO₂ are π-bonded to two oxygen atoms. B)both carbon in CO₂ and silicon in SiO₂ are σ-bonded to four oxygen atoms. C)carbon in CO₂ is π-bonded to two oxygen atoms and silicon in SiO₂ is σ-bonded to four oxygen atoms. D)silicon in SiO₂ is π-bonded to two oxygen atoms and carbon in CO₂ is σ-bonded to four oxygen atoms.

Question

Quizplus · Accepted Answer

In COS, the carbon is triple bonded to one sulfur and double bonded to one oxygen, therefore it has one σ-bond and two π-bonds with oxygen. In SiO, the silicon is tetrahedrally coordinated to four oxygen atoms, therefore it has four σ-bonds with oxygen. Therefore, option C is the best choice.

At 25°C CO2 Is a Gas and SiO2 Is a High-Melting

At 25°C CO₂ Is a Gas and SiO₂ Is a High-Melting