Discussion Forum

Four successive members of the first-row transition elements listed below with atomic numbers. Which one of them is expected to have highest 

 $E^{0}_{M^{3+}/M^{2+}}$ value ?

Answer:

Explanation:

 SRP value normally increases from left to right in the period of d-block elements. Some  SRP value are exceptionally higher due to the stability of production, eg.

$E^{0}_{M^{3+}/M^{2+}}$ =+1.57 V:

$E^{0}_{Co^{3+}/Co^{2+}}$= +1.97 V

 Thus , $E^{0}_{M^{3+}/M^{2+}}$  is highest for Co