MCQ
Transition metals are coloured due to the following electronic transition:
- A$d - s$
- ✓$d - d$
- C$s - p$
- D$f - s$
✓
Answer
Correct option: B.
$d - d$
Transition metals are coloured due to the $d-d$ electronic transition.It's a transition where an electron jumps from one $d$ orbital to another. Normally these are degenerate $($the $d$ orbitals have the same energy$),$ but under some conditions, such as the presense of ligands, the degeneracy can be removed so that there is a specific energy $($and therefore wavelength$)$ associated with these transitions.
These sorts of transitions sometimes have energies located in the visible band, and it's one reason transition metal ions $($and complex ions in particular$)$ tend to be highly colored.
These sorts of transitions sometimes have energies located in the visible band, and it's one reason transition metal ions $($and complex ions in particular$)$ tend to be highly colored.
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