[题目]下列物质的主要成分不属于硅酸盐的是( )A．陶瓷 B．玻璃 C．水泥 D．玛瑙题目和参考答案——青夏教育精英家教网—

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【题目】下列物质的主要成分不属于硅酸盐的是（）

A．陶瓷 B．玻璃 C．水泥 D．玛瑙

【答案】D

【解析】A．陶瓷是硅酸盐的混合物，属于硅酸盐材料错误；B．玻璃是硅酸盐的混合物，属于硅酸盐材料，错误；C．水泥含有硅酸盐，属于硅酸盐材料，错误；D．玛瑙主要成分是SiO2，属于氧化物，不是硅酸盐，正确。

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