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【题目】硅及其化合物在材料领域中应用广泛,下列叙述中不正确的是(

A.硅单质可用来制造太阳能电池

B.装碱性溶液的玻璃试剂瓶必能用玻璃塞

C.二氧化硅是制造光导纤维的材料

D.自然界硅元素的贮量丰富,并存在大量的单质硅

【答案】D

【解析】A.硅单质具有良好的光电转化作用,可用来制造太阳能电池,正确;B.玻璃中的SiO2会与NaOH等碱性物质发生反应,所以不能使用玻璃塞,错误;C.光线在SiO2中会发生折射作用,所以二氧化硅是制造光导纤维的材料,正确;D.自然界硅元素的贮量丰富,但是Si元素以氧化物及硅酸盐的形式存在,不存在大量的单质硅,错误。

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