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Q.
The transition metals mostly are
Rajasthan PMTRajasthan PMT 2009
Solution:
All the transition metal ions are paramagnetic while $ S{{c}^{3+}},\,\,T{{i}^{4+}},\,\,C{{u}^{+}} $ and $ Z{{n}^{2+}} $ are diamagnetic Paramagnetic is due to presence of unpaired electrons.