GCSE / O Levels Chemistry

The solid carbonates of three metals, W, X and Y, are heated.
result
carbon dioxide given off
solid changes colour from green to black
carbonate of Ww
carbonate of X
carbon dioxide given off
solid does not change colour
carbonate of Y
carbon dioxide not given off
solid does not change colour
Which statements are correct?
1
Metal Y is more reactive than metal X.
2 Metal Wis a transition metal.
3 If dilute nitric acid is added to all three carbonates, carbon dioxide is given off from
the carbonates of W and X but not from the carbonate of Y.
A 1 and 2 only B 1 and 3 only C 2 and 3 only
D 1, 2 and 3


Transition Elements, Reactivity Series | 2014 - O/N - 5070/12 | Q30