下列取代基或微粒中,碳原子都满足最外层为8电子结构的是 A.乙基

下列取代基或微粒中,碳原子都满足最外层为8电子结构的是

A.乙基(—CH2CH3) B.碳正离子[(CH3)3C+]  C.碳化钙 (CaC2)  D.碳烯  (:CH2)

 

答案

C

解析:

 

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