Which of the following pairs of ions are isoelectronic and isostructural?

S O_{3}^{2 -}, N O_{3}^{-}

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C l O_{3}^{-}, S O_{3}^{2 -}

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C O_{3}^{2 -}, S O_{3}^{2 -}

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C l O_{3}^{-}, C O_{3}^{2 -}

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Solution

The correct option is C $C l O_{3}^{-}, S O_{3}^{2 -}$
$C l O_{3}^{-}, S O_{3}^{2 -}$ are isoelectronic and isostructural.
Total number of electrons present in $C l O_{3}^{-} = 17 + 3 (8) + 1 = 42$
Total number of electrons present in $S O_{3}^{2 -} = 16 + 3 (8) + 2 = 42$
Both contains one lone pair of electrons and three bonding domains.
Hence, the central atom in these undergoes $s p^{3}$ hybridization which results in pyramidal geometry.

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Similar questions

Which of the following, are isoelectronic and isostructural ?

$N O_{3}^{-}, C O_{3}^{2 -}, C l O_{3}^{-}, S O_{3}$

N O_{3}^{-}, A s O_{3}^{3 -} C O_{3}^{2 -}, C l O_{3}^{-}, S O_{3}^{2 -}

B O_{3}^{3 -}

{N O}_{3}^{-}, A s O_{3}^{3 -}, {C O}_{3}^{2 -}, {C l O}_{3}^{-}, {S O}_{3}^{2 -}

B O_{3}^{3 -}

N O_{3}^{-}, A s O_{3}^{3 -}, C O_{3}^{2 -}, C l O_{3}^{-}, S O_{3}^{2 -}

B O_{3}^{3 -}

N O_{3}^{-}, A S O_{3}^{3_{-}}, C O_{3}^{2_{-}}, C l O_{3}^{-}, S O_{3}^{2_{-}}, and B O_{3}^{2_{-}}

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