Chemistry · May / June 2017 · Paper 11 · Question 24

The diagram shows part of the Periodic Table. [Periodic Table diagram with W, X and Y labelled] Which row about the elements W, X and Y is correct? | | combines with oxygen in the ratio 2 : 3 | exists as single atoms and is chemically unreactive | forms a carbonate which is not decomposed by heating in a Bunsen flame | |---|---|---|---| | A | W | X | Y | | B | W | Y | X | | C | X | W | Y | | D | X | Y | W |

1. AW X Y
2. BW Y X
3. CX W Y
4. DX Y W

As printed in the paper