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| 1. |
Explain why Cu^(+) ion is not stable in aqueous solution. |
| Answer» Solution :`Cu^(2+)` (aq) is much more stable than `Cu^(+)` (aq). Although second ionisation enthalpy of copper is large but `Delta_("HYD")` H for `Cu^(2+)` (aq) is much more negative than that for `Cu^(+)` (aq) and HENCE it more than compensates for the second ionisation enthalpy of copper. Therefore, many copper (I) compounds are UNSTABLE in AQUEOUS solution and undergo disproportionation. | |