Question

what is displacement reaction

Answer 1

displacement reaction :- reaction in which one element displaces other element from its compound.
eg:- AgNO3+Cu----> CuNO3+Ag

Answer 2

Those reactions in which one element takes place of another element in a compound are known as displacement reactions. In general a more reactive element displaces a less reactive element its compound.

Examples:-

1. Fe (s) + CuSO4 (aq) ⇒ FeSO4  (aq) + Cu (s) 

2. Zn (s) + CuS)4 (aq) ⇒ ZnSO4 (aq) + Cu (s)