Among the following ions the pπ -dπ overlap could be present in

Question

Among the following ions the pπ -dπ overlap could be present in (A)  NO2-  (B)  NO3-  (C)  PO43-  (D)  CO32-

Tardigrade Admin · Accepted Answer

In P-O bond, π -bond is formed by the sidewise overlapping of d-orbital of P and p-orbital of oxygen. Hence, it is formed by pπ and dπ overlapping. In nitrogen and carbon no vacant d-orbital is present. So, they do not form pπ -dπ bond.

Q. Among the following ions the $p π - d π$ overlap could be present in

$N O_{2}^{-}$

$N O_{3}^{-}$

$P O_{4}^{3 -}$

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

In $P - O$ bond, $π$ -bond is formed by the sidewise overlapping of $d$ -orbital of $P$ and $p$ -orbital of oxygen. Hence, it is formed by $p π$ and $d π$ overlapping.
In nitrogen and carbon no vacant d-orbital is present. So, they do not form $p π - d π$ bond.

Q. Among the following ions the pπ−dπ overlap could be present in

NO2−​

NO3−​

PO43−​

CO32−​