NA代表阿伏伽德罗常数的值，下列说法正确的是（）

题干

N_A代表阿伏伽德罗常数的值，下列说法正确的是（）

A：常温常压下，124g P₄中所含P-P键数目为4N_A

B：100mL 1mol·L^-1 FeCl₃溶液中所含Fe³⁺的数目为0.1N_A

C：标准状况下，11.2L甲烷和乙烯混合物中含氢原子数目为2N_A

D：密闭容器中，2mol SO₂ 和1mol O₂催化反应后分子总数为2N_A

上一题下一题 0.0难度选择题更新时间:2015-06-29 03:50:10

C

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