Hypervalent ion is/are :

S O_{3}^{2 -}

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P O_{4}^{3 -}

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S O_{4}^{2 -}

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C l O_{4}^{-}

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Solution

The correct options are
B $P O_{4}^{3 -}$
C $S O_{4}^{2 -}$
D $C l O_{4}^{-}$
Hypervalent molecule -
The hypervalent molecule is a molecule that contains one or more main group elements apparently bearing more than eight electrons in their valence shells.

Explanation -
A. Valence electrons available in $(S O_{3})^{2 -}$ => 8
B. Valence electrons available in $(P O_{4})^{3 -}$ => 10
C. Valence electrons available in $(S O_{4})^{2 -}$ => 12
D. Valence electrons present in $(C l O_{4})^{-}$ => 14

Hence B, C, D are hypervalent compounds.

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Similar questions

1. C l O_{4}^{-}, 2. B F_{3}, 3. S O_{4}^{2 -}, 4. C O_{3}^{2 -}

1 : C l O_{4}^{-}

2 : B F_{3}

3 : S O_{4}^{2 -}

4 : C O_{3}^{2 -}

Number of hypervalent species among the following ClO−4,BF3,SO2−4,CO2−3

C l O_{4}^{-}

B F_{3}

S O_{4}^{2 -}

C O_{3}^{2 -}

C O_{3}^{2 -}

S O_{3}^{2 -}

S O_{4}^{2 -}

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