卤代烃在工业生产和现实生活中具有广泛的应用,同时卤代烃跟烃及烃的其他衍生物之间有着密切的联系,它是有机合成的桥梁,因此,学好卤代烃是学好有机化学的基础,也是高考中重要的考点,是每年的必考内容。一、考点一:考查卤代烃的同分异构体例1.分子式为C_4H_2Cl_8的同分异构体共有(不考虑立体异构)()。A.6种B.7种C.8种D.9种解析:本题考查了有机化合物中存在的异构现象和简单有机化合物的同分异构体的数目判断。如果按部就班地书写八氯丁烷的同分异构体,就正好落入了命题者设置的陷阱,费时费力,且容易出错。实际上只要观 Halogenated hydrocarbons in industrial production and real life has a wide range of applications, while halogenated hydrocarbons with hydrocarbons and other derivatives of hydrocarbons are closely linked, it is a bridge of organic synthesis, therefore, learn Halohydrocarbon is a good organic The basis of chemistry, but also an important test in the entrance exam, is the annual exam content. First, a test site: to examine the halogenated hydrocarbon isomers Example 1. Molecular formula C_4H_2Cl_8 isomers (regardless of stereoisomers) (). A.6 species B.7 species C.8 species D.9 species analysis: This question examines the existence of organic compounds in the heterogeneous phenomenon and the number of simple organic compounds to determine the number of isomers. If you step by step to write the isomers of octachlorobutane, just fell into the trap set by the proponents, time-consuming and laborious, and prone to error. In fact, as long as the concept