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Question #33884

CO2 is gas while SiO2 is solid at room temperature?

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: CO2 is gas while SiO2 is solid at room temperature CO2 is an independent molecule while SiO2 has network covalent structure.

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