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【单选题】
下列关于苯的叙述正确的是( )。
A.
苯的分子式为 ,它不能使酸性 溶液褪色,属于饱和烃
B.
苯分子中含有碳碳双键,于烯烃
C.
在催化剂作用下,苯与液溴反应生成溴苯,发生了加成反应
D.
苯分子为平面正六边形结构,6个碳原子之间的价键完全相同
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