下列化合物跟溴和铁粉反应,氢原子被取代,所得一溴代物C8H9Br有二

下列化合物跟溴和铁粉反应,氢原子被取代,所得一溴代物C8H9Br有二种同分异构体的是                                                        

 


A              B                             C                    D

答案

B

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