Which one of the following represents the correct order of electron releasing tendency of metals?

The electron releasing tendency of a metal refers to its ability to undergo oxidation and lose electrons, which is directly proportional to its chemical reactivity. According to the activity series, zinc (Zn) is more reactive than copper (Cu), and copper is more reactive than silver (Ag) [1]. Zinc has a greater tendency to lose electrons and oxidize compared to copper, as evidenced by its negative standard electrode potential (-0.76V) compared to copper's positive potential (+0.34V). Similarly, copper releases electrons more readily than silver, allowing it to displace silver from its nitrate solution. Therefore, the correct descending order of electron releasing tendency is Zn > Cu > Ag. This hierarchy is fundamental in determining the direction of electron flow in voltaic cells and the feasibility of displacement reactions.

Sources

1. [1] Science , class X (NCERT 2025 ed.) > Chapter 3: Metals and Non-metals > 3.4.1 Extraction of Metals > p. 50