JEE Main 2026 Chemistry question
The pairs among A=[SO₃²⁻, CO₃²⁻], B=[O₂²⁻, F₂], C=[CN⁻, CO], D=[NH₃, H₃O⁺] and E=[MnO₄²⁻, CrO₄²⁻] that do not have similar Lewis dot structure are
Answer: (B)
Solution
O₂²⁻/F₂ (14 valence electrons each), CN⁻/CO (10), NH₃/H₃O⁺ (8) and MnO₄²⁻/CrO₄²⁻ (tetrahedral oxoanions) are isoelectronic pairs with
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