Question

Which of the following pair will show displacement reaction and why? A.feso4 and copper metal B.feso4 and aluminium metal

Answer 1

We know that low reactive metals such as Cu , Hg , Au , Ag and Pt can't displace high reactive metals.

So, answer will be (B)

FeSO4 + Al ----> Al3SO4 + Fe

Answer 2

second one.because aluminium is more active than iron.since it is placed above iron in metal reactivity series.copper being less active than iron cannot displace it from its compound.