C2H4 BR2 XKOH/C2H5OH,T0 YAGNO3/NH3 Z HBR Y
Câu 10: Cho sơ đồ : C
2
H4
Br
2
X
KOH
/
C
2
H
5
OH
,
t
0
Y
AgNO
3
/
NH
3
Z HBr
Y. Y làA. C2
H6
. B. C2
H2
. C. C2
H5
OH. D. C2
H4
.