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Out of CO2, SiO2, GeO2, SnO2 and PbO2...

Out of `CO_2, SiO_2, GeO_2, SnO_2 and PbO_2`

A

solid carbon dioxide and silicon dioxide are hard solid

B

`CO_2` and `SiO_2` are acidic and `SnO_2` is amphoteric

C

`PbO_2` reacts with `H_2SO_4` to give `PbSO_4`

D

`CO_2` does not contain `p pi - p pi` bonding.

Text Solution

Verified by Experts

The correct Answer is:
B, C
Only `SiO_2` is a solid network of `SiO_2` molecules.
`CO_2 + H_2O rarr H_2CO_3`
`SnO_2 + H^(+) rarr Sn^(2+) + H_2O`
`SnO_2 + OH^(-) rarr Sn(OH)_(6)^(4-)`
`2PbO_2 + 2H_2SO_4 rarr 2PbSO_4 + 2H_2O + O_2`.
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