Chemistry · May / June 2022 · Paper 11 · Question 32

The carbonates of metals W, X and Y are heated and the results are shown. | | colour of metal carbonate | gas given off which turns limewater cloudy | colour after heating | |---|---|---|---| | W | white | yes | yellow when hot, white when cold | | X | green | yes | black | | Y | white | no | no change | These experimental results can be used to write statements about W, X and Y. 1 The carbonates of W and X gave off carbon dioxide on heating. 2 Metals X and Y are less reactive than metal W. 3 X could be copper. Which statements are correct?

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

As printed in the paper