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 corre

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=O pi electrons are pushed onto oxygen, and the electrons of the CH₂-CH₃ single bond are pushed to make a C=C bond with the CH₂ carbon.

TestHub · Accepted Answer

The first arrow is allowed. The second arrow breaks a C-C single bond. C-1 is violated.

Chemistry - GOC Question with Solution | TestHub