The electronic configuration of $\mathrm{Cu}($ □ II) is $3 \mathrm{~d}^9$ whereas that of $\mathrm{Cu}(\mathrm{I})$ is $3 \mathrm{~d}^{10}$. Which of the following is correct?
Select the correct option:
A
Cu(II) is less stable
B
Stability of Cu(I) and Cu (II) depends on nature of copper salts
C
Cu( II) is more stable
D
Cu(I) and Cu (II) are equally stable
✓ Correct! Well done.
✗ Incorrect. Try again or view the solution.
Solution
$\mathrm{Cu}(\mathrm{II})$ is more stable than $\mathrm{Cu}(\mathrm{I})$ because hydration energy of $\mathrm{Cu}^{+2}$ ion compensate $\mathrm{IE}_2$ of Cu .
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