1159ChemistryMedium
CO2 is gas while SiO2 is solid at room temperature?
Acarbon is non-metal while silicon is semi-metal
BCO2 forms multiple bond while silicon does not form multiple bonds
CSilicon has all sigma bonds
DCO2 is an independent molecule while SiO2 has network covalent structure
Correct answer
D. CO2 is an independent molecule while SiO2 has network covalent structure
Explanation
CO2 is an independent molecule while SiO2 has network covalent structure is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.