MHT CET 2024 Chemistry question

Which from following is a correct stability order of complex formed by metal ions if the ligand remains same ?

(A)
(B)Correct
(C)
(D)

Answer: (B)

Solution

For a given ligand, the stability of complexes of divalent first-row transition metal ions follows the Irving-Williams series: Mn^{2+} < Fe^{2+} < Co^{2+} < Ni^{2+} < Cu^{2+} > Zn^{2+}, because the ionic radius decreases and crystal-field stabilisation

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Question ID VK-098917