Question
Sun January 29, 2012 By:

Explain why Cu+ ion is not stable in aqueous solutions?

Expert Reply
Mon January 30, 2012

In an aqueous medium, Cu2+ is more stable than Cu+. This is because although energy is required to remove one electron from Cu+ to Cu2+, high hydration energy of Cu2+ compensates for it. Therefore, Cu+ion in an aqueous solution is unstable. It disproportionates to give Cu2+ and Cu.

 

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