The electronic configuration of Cu(II) is 3d9 whereas that of Cu(I) is 3d10. Which of the following is correct ? (A) Cu(II) is less stable (B) Stability of Cu(I) and Cu(II) depends on nature of copper

Question

The electronic configuration of Cu(II) is 3d9 whereas that of Cu(I) is 3d10. Which of the following is correct ?

(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

Prashant Kotian · Accepted Answer

Correct answer: C. Cu(II) is more stable than Cu(I) because hydration energy of Cu+2 ion compensate IE2 of Cu. $//(1®

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