Question:
Out of Cu$_2$Cl$_2$ and CuCl$_2$, which is more stable in aqueous solution and why?
Out of Cu$_2$Cl$_2$ and CuCl$_2$, which is more stable in aqueous solution and why?
Updated On: Jan 13, 2026
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Solution and Explanation
CuCl2 is more stable than Cu2Cl2 in aqueous solution because Cu2+ is more stable than Cu+ due to its higher hydration enthalpy (ΔhydH°).
In aqueous solution, Cu+ undergoes disproportionation, as shown in the equation:
2Cu+(aq) → Cu2+(aq) + Cu(s)
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