d-d transition cannot be shown by
Correct answer: D. All of the above
- A. Cu+1
- B. Sc+3
- C. Zn+2
- D. All of the above
Explanation
Following ions of 3d-series contain no unpaired electrons. So, these don't show d-d transition and certain colourSe+3, Ti+4, Cu+1 and Zn+2
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About Electronic Structure of d-Block Elements
The electronic structure of d-block elements covers the filling of the (n-1)d and ns orbitals, general electronic configurations, and the exceptions shown by chromium and copper. It explains how partially filled d orbitals produce variable oxidation states, coloured ions, magnetic behaviour and complex formation, while distinguishing transition elements from elements with completely filled d subshells.
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