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The electronic configuration of Cu(II) is 3d9 whereas that of Cu(I) is 3d10. Which of the following is correct ?
The electronic configuration of Cu(II) is 3d9 whereas that of Cu(I) is 3d10. Which of the following is correct ?
Updated On: Nov 23, 2024
- Cu(II) is less stable
- Stability of Cu(I) and Cu(II) depends on nature of copper salts
- Cu(II) is more stable
- Cu(I) and Cu(II) are equally stable
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The Correct Option is C
Solution and Explanation
- The stability of Cu(II) arises because it has a partially filled d-subshell (\(3d^9\)), which allows it to participate in ligand bonding and form complexes more effectively.
- Cu(I) with \(3d^{10}\) is more stable in certain cases due to the completely filled d-subshell, but Cu(II) is generally more stable in aqueous solutions.
- The higher stability of Cu(II) over Cu(I) in aqueous medium is attributed to the higher hydration enthalpy of Cu(II) ions.
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