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第 21: 21在酸性溶液中，当适量的KMnO4与Na2SO3反应时出现的现象是 （ ）
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第 21: 21在酸性溶液中，当适量的KMnO4与Na2SO3反应时出现的现象是 （ ）
A、棕色沉淀
B、紫色褪去
C、绿色溶液
D、都不对
时间：2021-09-06 20:45
关键词：
文鼎教育
乐山师范学院
无机化学及实验 A卷
答案解析
B
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在酸性溶液中,当适量的KMnO4与Na2SO3反应时出现的现象是 ( )
第 21: 21在酸性溶液中，当适量的KMnO4与Na2SO3反应时出现的现象是 （ ）
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