Cu + ion is not stable in aqueous solution because
Chemistry · Class 12 · CBSE — The d- and f-Block Elements
Cu+ ion is not stable in aqueous solution because
- second ionisation enthalpy of copper is less than the first ionisation enthalpy
- large value of second ionisation enthalpy of copper is compensated by much more negative hydration energy of Cu2+(aq)
- hydration energy of Cu+(aq) is much more negative than that of Cu2+(aq)
- many copper (I) compounds are unstable in aqueous solution and undergo disproportionation reaction.
Answer
(B) large value of second ionisation enthalpy of copper is compensated by much more negative hydration energy of Cu 2 + ( aq )
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