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JEE Main Chemistry question

ChemistryCoordination CompoundsJEE Main

(At. Nos. Cr = 24, Mn = 25, Fe = 26, Co = 27.) The -electron configurations of and are and respectively. Which one of the following will exhibit minimum paramagnetic behaviour?

Answer: (D)

Solution

With weak-field (high spin): has 4 unpaired, has 5,

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Question ID VK-155623