22 Silicon(IV) oxide is a covalently bonded compound.
Which statements are correct?
1
2
Silicon atoms form four single bonds in silicon(IV) oxide.
Oxygen atoms form two double bonds in silicon(IV) oxide.
Silicon(IV) oxide has a high melting point.
Silicon(IV) oxide contains one silicon atom and four oxygen atoms.
3
4
с
D
2 and 3 only
3 and 4 only
B
1 and 3 only
1 and 2 only
А
А

2 and 3 only

Explanation:

The formular for the compound; Silicon(IV)oxide is SO2

1. Silicon atoms form four single bonds in silicon(IV) oxide.

This statement is wrong because the silicon is doubly bonded to two oxygen atoms.

2. Oxygen atoms form two double bonds in silicon(IV) oxide.

This statement is correct.

3. Silicon(IV) oxide has a high melting point.

This statement is correct Due to it's macromolecular structure, it is able to form thousands of covalent bonds between it's sulphur and oxygen sub units.

4. Silicon(IV) oxide contains one silicon atom and four oxygen atoms.

This statement is wrong as silicon(iv) oxide contains only two oxygen atoms.

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