Question

Arrange the following metals in the decreasing order of reactivity?

K, Na, Zn, Cu, Hg, Ag

• A. K>Na>Zn>Cu>Hg>Ag
• B. K>Na>Zn>Ag>Hg>Cu
• C. K>Na>Zn>Cu>Ag>Hg
• D. K>Na>Zn>Hg>Cu>Ag

Answer 1

Answer:

A. K>Na>Zn>Cu>Hg>Ag

The reactivity series lists metals from most to least reactive. Potassium (K) is the most reactive, followed by sodium (Na), zinc (Zn), copper (Cu), mercury (Hg), and finally silver (Ag), based on their tendency to lose electrons and react with substances like water or acids. The reactivity series of metals, also known as the activity series, refers to the arrangement of metals in the descending order of their reactivities.