Out of `Cu, Ag, Fe` and `Zn`, the metal which can displace all others from their salt solution is

Out of Cu, Ag, Fe and Zn, the metal which can displace all others from their salt solutions is :

Out of Cu,Ag,Fe and Zn the metal which can displace all other from their salt solutions is :

Out of Cu, Ag, and Mg the metal which can displace all others from their aqueous salt solution is-

Copper displaces Which of the metal from their salt solutions?

Given : Ag^(+)+//Agrarr+0.80V Co^(2+)//Cor rarr-.28V Cu^(2+)//Curarr+0.34V Zn^(2+)//Znrarr-0.76V . The most reactive metal which displaces other metals from their salts in solution is