Chemistry · Oct / Nov 2023 · Paper 11 · Question 6

Four statements about graphite, diamond and silicon(IV) oxide are listed. 1 Diamond and silicon(IV) oxide are both very hard and have similar structures. 2 In diamond, each carbon atom is joined to four other carbon atoms. 3 Silicon(IV) oxide forms a giant structure of silicon and oxygen atoms. 4 Diamond and graphite both conduct electricity because they are both forms of carbon. Which statements are correct?

1. A1, 2 and 3
2. B1, 2 and 4
3. C1, 3 and 4
4. D2, 3 and 4

As printed in the paper