NEET 2008 Chemistry question
Which of the following complexes exhibits the highest paramagnetic behaviour? (Where gly = glycine, en = ethylenediamine and bpy = bipyridyl moieties). (At. number Ti = 22, V = 23, Fe = 26, Co = 27)
Answer: (4)
Solution
Paramagnetism increases with the number of unpaired electrons. Find the oxidation state and -electron count in each complex (gly, OX and OH carry , and charges; en, bpy and are neutral): (1) Ti: , 1 unpaired electron. (2) V: , overall
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