2020 100
1 ( ) [Cu(OH) 2
]
1
2
( )
A B C
D
3 ( )
4 M FexOy CO a g M
.
a b
c d
.
b g xy= ( ab )
2
(1)A _____________________________
(2) I __________________________
(3)B ______________________
(4) : a 10.6g 9.0g
TsOH( )2 ~3 74~76 a
12.8g
