Question

what is displacement reaction discuss why iron can displace copper from its salt solution but copper cannot displace iron from its salt solution

Answer 1

Displacement reactions are those reactions in which a more reactive element displaces ( or removes) a less reactive element ( usually metals) from its compounds.


Iron (Fe) is more reactive than (Cu). Hence, it can displace Cu from its salt solution.
$Fe + CuSO_{4} --\ \textgreater \ Cu + Fe SO_{4}$

However, Cu cannot displace Fe from its salt solution as it is less reactive than Fe.
$Cu+FeSO_{4}--\ \textgreater$ No reaction.

Hope it helped!
NISHTHA.