viết đồng phân anken và gọi tên c4h8 ,c5h10

1/$C_4H_8$

+) $CH_2=CH-CH_2-CH_3:\ but-1-en$

+) $CH_3-CH=CH-CH_3:\ cis-but-2-en,\ trans -but-2-en $

+) $CH_2=C(CH_3)-CH_3:\ 2-metylprop-1-en$

2/$C_5H_{10}$

+) $CH_2=CH-CH_2-CH_2-CH_3:\ pent-1-en$

+) $CH_3-CH=CH-CH_2-CH_3:\ cis-pent-2-en, trans-pent-2-en$

+) $CH_2=C(CH_3)-CH_2-CH_3:\ 2-metylbut-1-en$

+) $CH_3-C(CH_3)=CH-CH_3:\ 2-metylbut-2-en$

+) $CH_3-CH(CH_3)-CH=CH_2:\ 3-metylbut-2-en$