[题目]普通玻璃的主要成分是:①Na2SiO3,②CaCO3,③CaSiO3,④SiO2,⑤Na2CO3,⑥CaO( )A．①③⑥ B．②③④ C．①③④ D．③④⑤ 题目和参考答案——青夏教育精英家教网—

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【题目】普通玻璃的主要成分是：①Na2SiO3；②CaCO3；③CaSiO3；④SiO2；⑤Na2CO3；⑥CaO（）

A．①③⑥ B．②③④ C．①③④ D．③④⑤

【答案】C

【解析】制玻璃的原料是纯碱、石灰石和石英，在高温下反应获得玻璃，玻璃的主要成分是硅酸钙、硅酸钠和二氧化硅的混合物，答案选C。

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