Which of the following pairs of ions is 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 -}, N O_{3}^{-}

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

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Solution

The correct option is C $C O_{3}^{2 -}, N O_{3}^{-}$
(2) In $S O_{3}^{2 -}$ , $C l O_{3}^{-}$
No. of electrons - 42,
Shape : Pyramidal

(3) In $C O_{3}^{2 -}, N O_{3}^{-}$
No. of electrons - 32
Shape : Trigonal planar

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