雷雨天闪电时空气中有臭氧（O3）生成．下列说法正确的是_刷题宝

题干

雷雨天闪电时空气中有臭氧（O₃）生成．下列说法正确的是（）

A：O₂和O₃互为同位素

B：O₂转化为O₃为化学变化

C：相同物质的量的O₂和O₃的体积相同

D：相同质量的O₂和O₃含有相同的分子数

上一题下一题 0.0难度选择题更新时间:2017-10-14 11:12:14

答案(点此获取答案解析）

B

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