Question

$\huge\boxed{\fcolorbox{cyan}{orange}{Hello}}$

Only for 12th

(Cu)+ and (Cu)2+ Which is more stable ? Explain .

Don't copy form Google _/\_

​

Answer 1

Cu2+ is more stable than Cu+. Because Stability depends on the hydration energy (enthalpy) of the ions when they bond to the water molecules. The Cu2+ ion has a greater charge density than Cu+ ion and thus forms much stronger bonds releasing more energy.

Answer 2

The answer with the explanation is given below.

• $Cu^+$ or Cu(I) ion is more stable than the $Cu^2^+$ or Cu(II) ion because of the fully filled d10 electronic configuration when they are in an unreactive or dry state.
• This becomes the opposite case when they are present in an aqueous solution as hydration enthalpy overpowers the second ionization enthalpy of Copper.
• Thus, in an aqueous solution, Cu(II) ion becomes more stable.