JEE Main 2026 Chemistry question

ChemistryThe d and f-Block ElementsJEE Main 2026

Given below are two statements: Statement I: Presence of large number of unpaired electrons in transition metal atoms results in higher enthalpies of their atomisation. Statement II: and are the d-orbital splittings in [Fe(H₂O)₆]³⁺ and [Ni(Cl)₄]²⁻ complex ions respectively.

Answer: (A)

Solution

More unpaired d-electrons strengthen metallic bonding, raising atomisation enthalpy (true). The given splitting

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Question ID VK-015469