Department of Pre-University Education, KarnatakaPUC Karnataka Science Class 12
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Account for the Following : Cu+ Ion is Unstable in Aqueous Solution. - Chemistry

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Account for the following : Cu+ ion is unstable in aqueous solution.

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Solution

Cu2+ is more stable than Cu+ in aqueous medium. Cu2+ has high hydration energy that compensates for the energy required to remove one electron from Cu+ to form Cu2+. So in aqueous medium, Cu+ gives Cu2+ and Cu.

Chemical reaction: 2 Cu+(aq) → Cu2+(aq) + Cu(s)

Concept: General Properties of the Transition Elements (D-block)
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