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好吧问答库 > 怎样验证木炭与浓硫酸反应生成的气体中含有二氧化碳和二氧化硫?

怎样验证木炭与浓硫酸反应生成的气体中含有二氧化碳和二氧化硫?

2025年04月08日 09:05

有1个网友回答

网友（1）：

将气体通入品红溶液中，如果发现品红溶液褪色，证明里面含有SO2。
将气体通入酸性KMnO4溶液中，除去SO2
再将气体通入品红溶液中，如果发现品红溶液不褪色，证明SO2已被除尽。
将气体融入澄清石灰水溶液中发现有白色沉淀，证明里面含有CO2

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