Chemistry · d- and f-Block Elements
Cuprous ion (Cu+) is colourless while cupric ion (Cu2+) is coloured because:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1both have half-filled p- and d-orbitals
- 2cuprous ion has an incomplete d-orbital and cupric ion has a complete d-orbital
- 3both have unpaired electrons in the d-orbitals
- 4cuprous ion has a complete d-orbital (d10) and cupric ion has an incomplete d-orbital (d9)✓
Correct answer
cuprous ion has a complete d-orbital (d10) and cupric ion has an incomplete d-orbital (d9)
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