The most unlikely representation of resonance structure of p-nitrophenoxide is

Question

The most unlikely representation of resonance structure of p-nitrophenoxide is (A)  (B)  (C)  (D)

Tardigrade Admin · Accepted Answer

In structure (c), N atom forms five bonds, ie, has 10 electrons which is not possible due to absence of d-orbitals. Moreover, in this, nitrogen carry positive charge, hence because of these two reasons structure (c) is highly unstable or we can say this structure is not possible.

Q. The most unlikely representation of resonance structure of p-nitrophenoxide is

In structure (c), $N$ atom forms five bonds, ie, has $10$ electrons which is not possible due to absence of $d$ -orbitals. Moreover, in this, nitrogen carry positive charge, hence because of these two reasons structure (c) is highly unstable or we can say this structure is not possible.