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JEE Main Chemistry question

ChemistryChemical Bonding and Molecular StructureJEE Main

Which of the following are possible resonating structures of ? (I) -type structure with formal charges (II) A structure with a positive charge shown on terminal N (III) with charges balanced (IV) A structure with a positive charge shown on O

Answer: (B)

Solution

is isoelectronic with and has a linear structure, (with appropriate formal charges that sum to zero overall). Of the four sketched structures, only (I) and (III) are legitimate resonance contributors

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Question ID VK-155921