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| 1. |
Explain why Cu^(+)ion is not stable in aqueous solution ? |
| Answer» Solution :`Cu^(2+)(aq)` is much more STABLE `Cu^(+)` ( aq). This is because although SECOND IONIZATION enthalpy of copper is large bu `Delta_(hyd)` H for `Cu^(2+) (aq)` ismuch more negative than that for `Cu^(+)(aq)` and hence it more than compensates for the second ionization enthalpy of copper. Therefore, many copper (I) compoundsare unstable in aqueous SOLUTIONAND undergo disproportionation as follows `:2Cu^(+)RARR Cu^(2+) + Cu`. | |