Answers

2016-03-01T09:35:45+05:30
Intermolecular forces within CO2 are very weak whereas in SIO2 it is very strong, thus,  sio2 is solid whereas co2 is a gas
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2016-03-01T11:47:57+05:30
Oh yes sio2 have tightly packed molecules there is no intermolecular space but co2 has loosely packed molecules

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