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题文

下列各组物质中,不是按下图所示(“→”表示一步完成)关系相互转化的是(  )

选项
a
b
c
A
Fe
FeCl3
FeCl2
B
Cl2
NaClO
NaCl
C
Si
SiO2
H2SiO3
D
HNO3
NO
NO2

 

科目 化学   题型 选择题   难度 较易
知识点: 碳族元素简介
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