下列物质的用途不正确的是(   ) A.硅是制造太阳能电池的常用

下列物质的用途不正确的是(  

A.硅是制造太阳能电池的常用材料         

B.二氧化硅是制造光导纤维的材料

C.水玻璃可用作木材防火剂               

D.硅是制取水泥的原料

答案

【答案】D

【解析】

试题分析:A、硅是制造太阳能电池的材料,正确,不选AB、光导纤维的材料是二氧化硅,不选BC

水玻璃可以阻止燃烧,所以可以做木材的防火剂,不选CD、二氧化硅是制取水泥的原料,选D

考点:硅和二氧化硅的性质。

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