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Why Cu2+ is more stable than Cu+ in aqueous solution?

Why Cu2+ is more stable than Cu+ in aqueous solution?

Grade:Upto college level

2 Answers

Aman Bansal
592 Points
10 years ago

Dear Bipasha,

It is due to high hydration energy of Cu2+

Stability of oxidation state depends upon 3 factors I.E ,ENTHAPY OF SUBLIMATION & HYDRATION ENTHALPY in case of Cu2+ hydration enthalpy is high & compensates for other factors 

Cu2+ is stable in aqueous solution.
in aqueous solution Cu+ disproportionates to Cu2+ and Cu
2Cu+------>Cu2+ +Cu

Best Of luck

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Amit singh
20 Points
7 years ago
it can be explained by standard electrode potential

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