下列有关尿素[CO(NH2)2]的说法,错误的是A.它可以作氮肥B.尿素分子中

下列有关尿素[CO(NH2)2]的说法,错误的是

A.它可以作氮肥

B.尿素分子中碳、氢原子个数比为14

C.尿素由碳、氧、氮、氢四种元素组成

D.尿素中氮元素的质量分数

答案

D

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