MHT CET 2026 Chemistry question

Identify the complex having the highest number of unpaired electrons from following.

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

Answer: (B)

Solution

Count d electrons and use ligand field strength. (A) is ; is a strong ligand, so it forms a low-spin complex with all electrons paired: 0 unpaired. (B) is with the weak-field ligand , giving a high-spin ()

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Question ID VK-098488