在实验室里制取的乙烯中常混有�量的二氧化硫某化学兴趣小组设计了如图所示的实验装置以确认上述混合气体中是否含有so2和c2h4.请回答下列问题 Template




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tomski在实验室里制取的乙烯中常混有�量的二氧化硫某化学兴趣小组设计了如图所示的实验装置以确认上述混合气体中是否含有so2和c2h4.请回答下列问题 coloring