Question

displacement reactions and reactivity series

Answer 1

it is a reaction in which more reactive elements displace a less reactive element from its compound . both metals and non metal takes part in dispalcement reaction
Ex:- reaction of iron nail with a copper sulphate solution

Answer 2

When highly reactive element displace low reactive element is called displacement reaction
K
Na
Ca
Mg
Al
Zn
Ph
H
Cu
Mg
Ag
Au
I hope its help you