CH2=CH-CH2-CH3; CH3-CH=C(C2H5)-CH3; CLCH=CHCL; HOOC-CH=CH-CH3;(CH3)2C=CH-CH3;CHBR=CH-CH3
Câu 49: Cho các chất sau: CH
2
=CH-CH
2
-CH
3
; CH
3
-CH=C(C
2
H
5
)-CH
3
; ClCH=CHCl; HOOC-CH=CH-CH
3
;
(CH
3
)
2
C=CH-CH
3
;CHBr=CH-CH
3
2
2
3
3
2
5
3
3
3
2
3
3