1.
a,
$CH_3-CH=CH_2+H_2\buildrel{{Ni, t^o}}\over\longrightarrow CH_3-CH_2-CH_3$
b,
$CH_3-CH_2-CH=CH_2+Br_2\to CH_3-CH_2-CHBr-CH_2Br$
c,
$CH_3-CH=CH-CH_3+HBr\to CH_3-CHBr-CH_2-CH_3$
d,
$CH_3-CH=CH_2+H_2O\buildrel{{H^+, t^o}}\over\longrightarrow CH_3-CH(OH)-CH_3$ (spc)
$CH_3-CH=CH_2+H_2O\buildrel{{H^+, t^o}}\over\longrightarrow CH_3-CH_2-CH_2OH$ (spp)
e,
$CH_3-CH=CH_2\to (-CH_2-CH(CH_3)-)_n$
2.
Dẫn 2 khí qua nước brom dư. Etilen làm nhạt màu brom, còn lại là metan.
$C_2H_4+Br_2\to BrCH_2-CH_2Br$
