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1.不能用勒夏特列原理解释的是
A: 热的纯碱溶液去油污效果好
B: 合成氨工业中使用铁触媒做催化剂
C: 饱和FeCl3溶液滴入沸水中可制得氢氧化铁胶体
D: 实验室配制FeCl3溶液时,应向其中加入少量浓盐酸
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