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苯与烯炔的区别怎样鉴别
更新时间: 2020-10-03 00:00:00  

苯是六元环状结构,键角约120度。

烯烃是含有碳碳双键的烃类物质,具体的有烯烃、二烯烃等等,键角约120度。

炔烃是含有碳碳叁键的烃类物质,键角为180度。

区分三者,可以用溴水,苯不能使溴水褪色,烯和炔可以和溴水发生加成反应,使之褪色;加入银氨溶液,有白色沉淀的是炔,没有白色沉淀的是烯。

关键词: 区别 怎样 鉴别

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