JEE Main 2026 — Apr 4, Shift 1 — Chemistry solution

JEE Main2026Apr 4, Shift 1Chemistry

According to Lewis theory, the total number of $σ$ bond-pairs and lone pair of electrons around the central atom of $Xe O_{6}^{4 -}$ ion is ____.

Your answer

Solution

In the perxenate ion $Xe O_{6}^{4 -}$ , the central xenon atom is octahedrally surrounded by six oxygen atoms. Each Xe $-$ O linkage is conventionally drawn as one $σ$ bond (with $π$ contributions accommodating the charges).

Number of $σ$ bond pairs $= 6$ . Number of lone pairs on Xe $= 0$ (all valence electrons accounted for in the six bonds and the formal charges).

Total $= 6 + 0 = 6$ .

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