# Which of the following oxidises is acidic as well as solid at room temperature? Option 1) $SiO_{2}$ Option 2) $CO_{2}$ Option 3) $CO$ Option 4) $N_{2}O$

As we learnt in

Oxide of Silicon -

SiO2 form three dimensional network

- wherein

Due to lack of formation of $\pi - bonds$ with oxygen

Only SiO2  is solid at room tempreature of all the options and it is acidic.

Option 1)

$SiO_{2}$

This option is correct

Option 2)

$CO_{2}$

This option is incorrect

Option 3)

$CO$

This option is incorrect

Option 4)

$N_{2}O$

This option is incorrect

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