Which of the following metals can displace aluminium from an aluminium sulphate solution?
AMg
BHg
CFe
DCu
Answer:
A. Mg
Read Explanation:
Magnesium (Mg) is highly reactive and placed higher in the reactivity series of metals, meaning it is more reactive than many other metals, including aluminium.
Due to its position, magnesium can displace less reactive metals (like aluminium) from their compounds.
For instance, magnesium (Mg) is more reactive than beryllium (Be) because it has more electrons in its outermost shell.
In summary, the reactivity of metals is influenced by their electron configuration and their position in the periodic table.
Metals that can easily lose electrons and form cations are more reactive.