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 ?
In $C H_{3} - CH = O^{+} - C H_{3}$ the $C = O$ pi electrons are pushed onto the positively charged oxygen.

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

In $C H_{3} - CH = O^{+} - C H_{3}$ the $C = O$ pi electrons are pushed onto the positively charged oxygen.

TestHub · Accepted Answer

Oxygen with a pi pair added has two single bonds and two lone pairs, a neutral octet. The carbon becomes a cation. No violation.

Chemistry - GOC Question with Solution | TestHub