Which of the following has ppi - dpi bonding? | vedclass

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(D) : In the sulfite ion $(SO_3^{2-})$,the central sulfur atom is $sp^3$ hybridized.It has one lone pair and three $S-O$ bonds.Due to the expansion of

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$SO_3^{2-}$

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(D) : In the sulfite ion $(SO_3^{2-})$,the central sulfur atom is $sp^3$ hybridized.It has one lone pair and three $S-O$ bonds.Due to the expansion of the octet,sulfur can form $p\pi - d\pi$ bonds with oxygen atoms.Specifically,one of the $S-O$ $\pi$ bonds involves the overlap of a $2p$ orbital of oxygen with a $3d$ orbital of sulfur,resulting in $p\pi - d\pi$ bonding.In contrast,$NO_3^-$,$CO_3^{2-}$,and $BO_3^{3-}$ involve only $p\pi - p\pi$ bonding because the central atoms ($N$,$C$,$B$) lack $d$-orbitals.

Which of the following has $p\pi - d\pi$ bonding?

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