Bài 1:
$CH_{2}=CH-CH_{3}$ propen
$CH_{2}=CH-CH_{2}-CH_{3}$ but-1-en
$CH_{3}-CH=CH-CH_{3}$ but-2-en
$CH_{2}=C(CH_{3})-CH_{3}$ 2-metyl,prop-1-en
Bài 2:
a.
\(C_{3}H_{6}+H_{2} \to C_{3}H_{8}\)
b.
\[nC{H_2} = \mathop {CH}\limits_{C{H_2}C{H_3}} \to - (C{H_2} - \mathop {CH) - n}\limits_{C{H_2}C{H_3}} \]