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$\mathrm{NO}_{3}^{-}, \mathrm{AsO}_{3}^{3-}, \mathrm{CO}_{3}^{2-}, \mathrm{ClO}_{3}^{-}, \mathrm{SO}_{3}^{2-}$ and $\mathrm{BO}_{3}^{3-}$, the non-planar species are
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$\mathrm{NO}_{3}^{-}, \mathrm{AsO}_{3}^{3-}, \mathrm{CO}_{3}^{2-}, \mathrm{ClO}_{3}^{-}, \mathrm{SO}_{3}^{2-}$ and $\mathrm{BO}_{3}^{3-}$, the non-planar species are
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$\mathrm{AsO}_{3}^{3-}, \mathrm{ClO}_{3}^{-}$and $\mathrm{SO}_{3}^{2-}$
$\mathrm{AsO}_{3}^{3-}, \mathrm{CIO}_{3}^{3-}$, and $\mathrm{SO}_{3}^{2-}$ have $\mathrm{sp}^{2}$ hybridisation and hence are non-planar species, while $\mathrm{NO}_{3}^{-}, \mathrm{CO}_{3}^{2-}$ and $\mathrm{BO}_{3}^{3-}$ have $\mathrm{sp}^{2}$ hybridisation and hence are planar species
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