In silicon dioxide Option 1) each silicon atom is surrounded by four oxygen atoms and each oxygen atom is bonded to two silicon atoms Option 2) each silicon atom is surrounded by two oxygen atoms and each oxygen atom is bonded to two silicon atoms Option 3) silicon atom is bonded to two oxygen atoms Option 4) there are double bonds between silicon and oxygen atoms

As we learnt in

Oxide of Silicon -

SiO2 form three dimensional network

- wherein

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

Structure of SiO2 form 3-dimensional network.

Option 1)

each silicon atom is surrounded by four oxygen atoms and each oxygen atom is bonded to two silicon atoms

This option is correct.

Option 2)

each silicon atom is surrounded by two oxygen atoms and each oxygen atom is bonded to two silicon atoms

This option is incorrect.

Option 3)

silicon atom is bonded to two oxygen atoms

This option is incorrect.

Option 4)

there are double bonds between silicon and oxygen atoms

This option is incorrect.

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