下列鉴别两种不同物质的方法,不正确的是(  ) 序号待鉴别的物质

下列鉴别两种不同物质的方法,不正确的是(  )

序号

待鉴别的物质

鉴别方法

A

CO2O2

燃着的木条观察燃烧情况

B

酒精与白醋

闻气味

C

BaCO3NaCl

加水观察是否溶解

D

NaOHNa2CO3

滴加酚酞溶液

观察溶液颜色的变化

答案

D

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