NEET 2004 Chemistry question

Considering as a weak field ligand, the number of unpaired electrons in will be (At. no. of Mn = 25)

(1)FiveCorrect
(2)Two
(3)Four
(4)Three

Answer: (1)

Solution

Mn (Z = 25) is , so is . Water is a weak field ligand: the crystal field splitting is smaller than the pairing energy, so the electrons occupy the orbitals singly ($

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Question ID VK-089409