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化合反应及其应用

> 硅元素的符号为Si单晶硅是制作电子集成电路的基础材料．用化学方法可制得高纯硅，其化学方程式为：①SiO 2+2C 高温 . Si+2CO②Si+2Cl 2 点燃 . SiCl 4③SiCl 4+2H2 △ . Si+4HC，上述反应中，反应②的反应类型属于（　　） A．化合反应 B．分解反应 C．置换反应 D．都不是

问题：

发布时间：2024-09-09

硅元素的符号为Si单晶硅是制作电子集成电路的基础材料．用化学方法可制得高纯硅，其化学方程式为：①SiO ₂+2C

高温

.

Si+2CO②Si+2Cl ₂

点燃

.

SiCl ₄③SiCl ₄+2H2

△

.

Si+4HC，上述反应中，反应②的反应类型属于（　　）

A．化合反应 B．分解反应 C．置换反应 D．都不是

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