Consider the following oxidation reactions: Cu → Cu2+ + 2e-      ; Eo = -0.34 volt Cu → Cu+ + e-          ; Eo = -0.52 volt Which of the oxidation state has more stability?

Cu+ Cu2+ Both have same stability None of these

Cu2+

Stability of an oxidation state depends on its electrode potential that further depends on ionisation energy, enthalpy of sublimation and hydration energy.