Question

尼

第十八題，題目啥意思

18..
For the questions that follow, consider the BEST Lewis structures of the following oxyania
(i) NO2-
(iv) S042-
(v) Br03-
(ii) NO3- (iii) SO32-
w
There can be three equivalent best resonance structures of
å
Hii), (iii), and (v)
(i) and (ii)
c. O(iii) and (v)
d. O(iii), (iv), and (v)
O all
e.