下列实验方法错误的是( )    A.用水鉴别硝酸铵固体和氢氧化

下列实验方法错误的是(  )

    A.用水鉴别硝酸铵固体和氢氧化钠固体

    B.用紫色石蕊溶液鉴别二氧化碳气体和一氧化碳气体

    C.用浓硫酸除去氢气中混有的少量水蒸气

D.用稀盐酸除去铁粉中混有的少量铜粉

 

答案

D

解析:略

 

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