1 mol乙烯与氯气发生加成反应,反应完全后再与氯气发生取代反应,整个过程中氯气最多消耗( ) A.3 mol B.4 mol C.5 mol D.6 mol 答案:解析:1 mol C2H4加成需1 mol Cl2生成C2H4Cl2,取代C2H4Cl2中的4个H原子消耗4 mol Cl2,整个过程共耗 Cl2 5 mol。答案:C________ the way, what did you buy _____ the way home?
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A.By; by
B.By; on
C.On; by
D.On; on