base hydrolysis is fastest for which of the following coordination compounds?
(a) [Co(NH3)5Cl]2+
(b) [Co(NH3)5Br]3+
(C)[Co(py)4Cl2]+
(d)[Co(CN)4Br2]3-
(e)[Co(py)4Br2]+
答案是a,请高人解释一下,谢谢
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