实验室制取乙烯常因温度过高而使乙醇和浓h2so4反应生成�量的二氧化硫有人设计下列实验以确认上述混合气体中有乙烯和二氧化硫. 1写出 Template




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tomski实验室制取乙烯常因温度过高而使乙醇和浓h2so4反应生成�量的二氧化硫有人设计下列实验以确认上述混合气体中有乙烯和二氧化硫. 1写出 coloring