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

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

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

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Solution

The correct option is C $C O_{3}^{2 -}, N O_{3}^{-}$
Isostructural chemical compounds have similar chemical structures.
Isoelectronic terms refer to two-atom, ions or molecules that have the same number of valence electrons.

Number of electrons

$C O_{3}^{2 -} = 6 + 2 + 24 = 32$

$S O_{3}^{2 -} = 16 + 2 + 24 = 42$

$C l O_{3}^{2 -} = 17 + 24 + 1 = 42$

$N O_{3}^{-} = 7 + 1 + 24 = 32$

Hence $C O_{3}^{2 -}$ and $N O_{3}^{-}$ are isoelectronic and trigonal planar in shape.

Option C is correct.

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

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

Which among the following are isoelectronic $N O_{3}^{-}, C O_{3}^{2 -}, C l O_{3}^{-}, S O_{2}$

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

C O_{3}^{2 -}

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