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InterviewSolution
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Why is `Cu^(+)` ion not stable in aqueous solution ? or Why is `Cu^(+)` is not known in aqueous solution ? |
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Answer» Cu(I) compounds involving `Cu^(+)` ions are unstable in aqueous solution and undergo disproportionation. The stablility of `Cu^(2+)` ions as compared to `Cu^(+)` ion is due to more negative `Delta_(hyd)H^(@)` of `Cu^(2+)(aq)` than that of `Cu^(+)(aq)` which compensates the second ionisation enthalpy of Cu involved in the formation of `Cu^(2+)` ion. `2Cu^(+) to Cu^(2+) +Cu` |
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