阿Q吧 > so2为什么能使“酸性”kmno4褪色而不是中性呢

so2为什么能使“酸性”kmno4褪色而不是中性呢

2025-03-16 13:46:29
推荐回答（1个）
回答1：

SO2使KMnO4褪色的原因是，KMnO4溶液为紫色，是MnO4-离子的颜色，酸性KMnO4溶液具有强氧化性，可使溶液中的+4价硫元素氧化成+6价，而自身被还原，所以溶液就变为无色了。

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