Answer:
D. Y will replace ions of X in a solution
Explanation:
If metal X is lower than metal Y on the activity series, then Y will replace ions of X in a solution.
This is the crux of single displacement reactions.
- In a single displacement reaction, a metallic ion in solution is replaced by a metal higher in the activity series than the metal in solution.
- On the activity series, metals higher are more reactive and will displace the lower and less reactive ones.
- Reactivity increases up the group.
