JEE Advanced Chemistry question

Hypervalent ion is/are

(A)SO3²⁻
(B)PO4³⁻
(C)SO4²⁻
(D)ClO4⁻Correct

Answer: (D)

Solution

A hypervalent species is one whose central atom is formally assigned more bonding electron pairs than a simple octet allows, typically reached via resonance structures that invoke d-orbital participation. In ClO4⁻, chlorine is in its maximum possible oxidation state (+7), and the four equivalent Cl–O bonds (through

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Question ID VK-159332