C-1 : never break a single bond while drawing a resonance structure.
C-2 : never exceed the octet of a second-period atom (C, N, O).
For the curved-arrow move described below, which statement is correct ?
The C=C pi electrons of CH₂=CH-N⁺H₂CH₃ are pushed towards nitrogen to make a new C=N bond.

Question

C-1 : never break a single bond while drawing a resonance structure.

C-2 : never exceed the octet of a second-period atom (C, N, O).

For the curved-arrow move described below, which statement is correct ?

structure

The C=C pi electrons of CH₂=CH-N⁺H₂CH₃ are pushed towards nitrogen to make a new C=N bond.

TestHub · Accepted Answer

The nitrogen carries no lone pair, so a new C=N bond would give it five bonds (10 electrons). C-2 is violated.

Chemistry - GOC Question with Solution | TestHub