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    精英家教网 > 初中英语 > 题目详情
    2008年北京奥运会主体育场的外形好似“鸟巢”(The Bird Nest)，有 一类物质也好似鸟巢，如化学式是B5H9的五硼烷。下列有关五硼 烷的说法错误的是
    [     ]
    A．五硼烷属于化合物
    B．五硼烷的相对分子质量是64
    C．五硼烷中硼元素和氢元素的质量比为5:9
    D．1个五硼烷分子由5个硼原子和9个氢原子构成
    C
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