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乙烯和乙炔是现行高中化学教材中的两种重要的不饱和烃。在教学中,就乙烯和乙炔的反应活性问题还在争论不休,各种说法不一,概括起来有三种:第一种,认为乙烯和乙炔都具有不饱和性,它们的化学性质相似。第二种,认为乙烯与溴反应比乙炔与溴反应容易,说乙烯比乙炔活泼。第三种,认为乙炔较乙烯具有更大的不饱和性,说乙炔比乙烯活泼。
Ethylene and acetylene are two of the most important unsaturated hydrocarbons in current high school chemistry textbooks. In teaching, the reaction of ethylene and acetylene is still debating the issue, all kinds of different opinions, summed up in three ways: First, that both ethylene and acetylene are unsaturated, their chemical properties are similar. The second, that the reaction of ethylene and bromine than acetylene and bromine reaction is easy, that ethylene is more active than acetylene. The third is that acetylene has greater unsaturation than ethylene, saying that acetylene is more active than ethylene.