Out of `Cu_(2)Cl_(2)`, which is more stable and why ? – InterviewSolution

1.	Out of `Cu_(2)Cl_(2)`, which is more stable and why ?
Answer» `CuCl_(2)` is more stable than `Cu_(2)Cl_(2)` because `Cu^(2+)`(aq) ion has more negative enthalpy of hydration ( ` Delta_("hyd.")H^(@)`) as compared to `Cu^(+)(aq)` ion due to its smaller size. This compensates the extra ionisation enthalpy involved in the conversion of Cu to `Cu^(2+)` ion.

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