The group having triangular planar structures is:

N C l_{3}, B C l_{3}, S O_{3}

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

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

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

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Solution

The correct option is B $C O_{3}^{2 -} N O_{3}^{-}, S O_{3}$
The group having triangular planar structures is $C O_{3}^{2 -} N O_{3}^{-}, S O_{3}$
In $C O_{3}^{2 -}$ ion, $C$ atom is $s p^{2}$ hybridised. This results in triangular planar structure.
In $N O_{3}^{-}$ ion, $N$ atom is $s p^{2}$ hybridised. This results in triangular planar structure.
In $S O_{3}$ , $S$ atom is $s p^{2}$ hybridised. This results in triangular planar structure.
In all the above molecules/ions, the central atom has $3$ binding domains and a bond angle of $120^{\circ}$ .
Note:
$N C l_{3}, N F_{3} a n d N H_{3}$ are pyramidal.
$B C l_{3} a n d B F_{3}$ have triangular planar structure.

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Similar questions

The rates of diffusion of $S O_{2}, C O_{2}, P C l_{3} a n d S O_{3}$ are in the following order –

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

S O_{3}

P C l_{3} F_{2}

P_{4}

N H_{3}

C O_{2}

C F_{4}

B F_{3}

S i C l_{4}

H C l O_{4}

S F_{4}

S O_{3}

C O_{2}

S O_{3}

Which of the following are iso-electronic and iso-structural?

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

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