Which element from following has highest negative standard reduction potential?
Which element from following has highest negative standard reduction potential?
K
Li
Na
Rb
Solution
The alkali metal lithium has the lowest ionisation enthalpy of all the metals. It has a strong inclination to remove the electron from the valence shell, a weak tendency to accept electrons, and a preference for going through oxidation. Thus, it has the lowest standard reduction potential or highest negative standard reduction potential.