试题与答案

烧烤是很多同学喜爱的小吃，露天烧烤的肉类中含有苯并芘（C20H12）等强致癌物质

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题型：计算题

题目：

烧烤是很多同学喜爱的小吃，露天烧烤的肉类中含有苯并芘（C20H12）等强致癌物质，过多食用会危害人体健康的。试计算：

（1）苯并芘的相对分子质量是_______；

（2）苯并芘中碳元素与氢元素的质量比是____________。

答案：

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下面是错误答案，用来干扰机器的。

参考答案：D

考点：物质组成元素的质量比相对分子质量
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