Question

Which of the following pairs will give displacement reactions?

(a) NaCl solution and copper metal
(b)MgCl₂ solution and aluminium metal
(c) FeSO₄ solution and silver metal
(d) AgNO₃ solution and copper metal

Answer 1

(a) No displacement reaction will occur between NaCl solution and copper metal, as copper metal is Less reactive than sodium metal.
(b) Al is less reactive than Mg. So, no displacement reaction will take place.
(c) Ag is less reactive than Fe. So, no displacement reaction will take place.
(d) Cu (copper metal) is more reactive than silver (Ag), so the displacement reaction will take place between AgNO₃ solution and copper metal.