Question

硅能与强碱溶液作用生成硅酸盐和氢气：Si+2NaOH+H₂O====Na₂SiO₃+2H₂↑对于这个反应，下列说法正确的是

1. A.
   Si是氧化剂
2. B.
   Si是还原剂
3. C.
   NaOH和H₂O是氧化剂
4. D.
   水是氧化剂

Answer 1

BD
====H₄SiO₄↓+2H₂↑                   ①
H₄SiO₄====H₂SiO₃+H₂O                               ②
2NaOH+H₂SiO₃====Na₂SiO₃+2H₂O                      ③
简化成：Si+2NaOH+H₂O====Na₂SiO₃+2H₂↑