CO2 is gas while SiO2 is solid at room temperature?

Question

Options:

A . carbon is non-metal while silicon is semi-metal

B . CO2 is an independent molecule while SiO2 has network covalent structure

C . CO2 forms multiple bond while silicon does not form multiple bonds

D . Silicon has all sigma bonds

Answer: Option B
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

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