【題目】下列說法中，不正確的是( )

A．SiO2和CO2都是酸性氧化物，均可與NaOH溶液反應(yīng)

B．水晶項鏈、石英鐘都是硅酸鹽制品

C．SiO2和CO2在一定條件下，均可與CaO發(fā)生反應(yīng)

D．SiO2不溶于水，而CO2可與水反應(yīng)，生成H2CO3

【答案】B

【解析】水晶項鏈、石英鐘的主要成分都是SiO2，不是硅酸鹽制品。

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