問題詳情
45. In electrophilic aromatic substitution reactions a bromine substituent ________.
(A)is a deactivator and a m-director
(B)is a deactivator and an o,p-director
(C) is an activator and a m-director
(D)is an activator and an o,p-director
參考答案
答案：[無官方正解]
難度：計算中-1
書單：沒有書單，新增