【单选题】1-9 通过共振离域,哪些原子可带有负电荷? onto which of the numbered atoms in this structure can the negative charge be moved by resbnance.delocalization?
【单选题】1-9 通过共振离域,哪些原子可带有负电荷? Onto which of the numbered atoms in this structure can the negative charge be moved by resbnance.delocalization?
A、2, 4,6 only
B、1, 3, 5, 8 only
C、1, 3, 5 only
D、2,4,6,7 only