题干

下图中A,B,C分别是三种有机物分子的表示方法:

请回答下列问题:

①A,B两种模型分别是有机物的____模型和____模型.

②A,B,C三种有机物中,所有原子均共面的是____(填字母序号).

③有机物C具有的结构或性质是____(填字母序号).

a.是碳碳双键和碳碳单键交替的结构

b.有特殊气味、有毒、易溶于水、密度比水大

c.一定条件下能与液溴发生取代反应

d.能与浓硝酸发生氧化反应.

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球棍,比例,BC,c

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