Question

The correct stability order of the following resonance structures is :
x`H_(2)C=overset(o+)underset((I))N=overset(Ɵ)N`
`H_(2)overset(o+)Cunderset((II))-N=overset(Ɵ)N`
`H_(2)overset(Ɵ)C-underset((III))overset(o+)N-=N`
`H_(2)overset(Ɵ)C-underset((IV))N=overset(o+)N`
A. `IgtIIgtIVgtIII`
B. `IgtIIIgtIIgtIV`
C. `IIgtIgtIIIgtIV`
D. `IIIgtIgtIVgtII`

Answer 1

Correct Answer - B
(I) is most stabilise as all atoms have complete octet. (IV) is highly destabilise as N is +ively charged and has incomplete octet.