alleryTransition metal ions are often noticed for being:
AColourless
BColoured
COdourless
DWeightless
Answer & Solution
Correct answer: B. Coloured
1. Partly filled d orbitals give these ions their character.
2. One of the results is easy to see with the eye.
3. Their ions are coloured.
_Source: syllabus Chemistry Part I, Chapter 8, The d- and f-Block Elements._
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