Verified Solution • 2025–26 Session moderate

QJEEM24Chc085: JEE Main 2024 Chemistry - Class 12 JEEM24Chc085 Solution: The electronic configuration of is whereas that of is . Which…

The electronic configuration of Cu(II)\mathrm{Cu}(\mathrm{II}) is 3 d93 \mathrm{~d}^9 whereas that of Cu(I)\mathrm{Cu}(\mathrm{I}) is 3 d103 \mathrm{~d}^{10} . Which of the following is correct?

Multiple Choice Options

  • A Cu(II)\mathrm{Cu}(\mathrm{II}) is more stable
  • B Cu\mathrm{Cu} (II) is less stable
  • C Cu(I)\mathrm{Cu}(\mathrm{I}) and Cu(II)\mathrm{Cu}(\mathrm{II}) are equally stable
  • D Stability of Cu(I)\mathrm{Cu}(\mathrm{I}) and Cu(II)\mathrm{Cu}(\mathrm{II}) depends on nature of copper salts

Step-by-Step Verified Solution

Cu2+\mathrm{Cu}^{2+} is more stable.

Cu+⟶Cu2++Cu\mathrm{Cu}^{+} \longrightarrow \mathrm{Cu}^{2+}+\mathrm{Cu} disproportionation reaction

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