推理是一种重要的化学思维方法,以下推理合理的是(   ) A.单

推理是一种重要的化学思维方法,以下推理合理的是(  

A.单质中只含有一种元素,但是只含有一种元素的物质不一定是单质

B.中和反应一定有盐生成,所以有盐生成的反应一定是中和反应

CH2OH2O2的组成元素相同,所以它们的化学性质相同

D.氧化物一定含氧元素,含氧元素的物质一定是氧化物

答案

【答案】A

考点:基本概念和原理的推理

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