在实验室里制取乙烯常因温度过高而使乙醇和浓硫酸反应生成�量的二氧化硫有人设计下列实验图以确认上述混合气体中有c2h4和so2回答下列问题 Template




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tomski在实验室里制取乙烯常因温度过高而使乙醇和浓硫酸反应生成�量的二氧化硫有人设计下列实验图以确认上述混合气体中有c2h4和so2回答下列问题 coloring