1.

The reason for the distinct differencein the properties of CO_2 and SiO_2 is

Answer»

<P>CARBON is more electronegative than O and in case of `SiO_2` oxygen is more electronegative than silicon
Carbon has small size and forms a `pi` BOND with good overlap whereas silicon has larger size hence has a poor `pi` - overlap
First ionization potential of carbon is higher than that of silicon
Carbon has only 'p' orbitals and LACKS 'd' orbitals whereas silicon has 'd' orbitals

Answer :B


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