$C_5H_{10}$
C=C-C-C-C: Pent-1-en
C-C=C-C-C: Pent-2-en
C=C(C)-C-C: 2-metylbut-1-en
C=C-C(C)-C: 3-metylbut-1-en
C-C(C)=C-C: 2-metylbut-2-en
$C_6H_{12}$
C=C-C-C-C-C: hex-1-en
C=C(C)-C-C-C: 2-metylpent-1-en
C=C-C(C)-C-C: 3-metylpent-1-en
C=C-C-C(C)-C: 4-metylpent-1-en
C=C(C)-C(C)-C: 2,3-đimetylbut-1-en
C=C-C(C)(C)-C: 3,3-đimetylbut-1-en
C-C=C-C-C-C: hex-2-en
C-C(C)=C-C-C: 2-metyl-pent-2-en
C-C=C(C)-C-C: 3-metyl-pent-2-en
C-C(C)=C(C)-C: 2,3-đimetylbut-2-en
C-C-C=C-C-C: hex-3-en
C-C=C-C(C)-C: 4-metylpent-2-en
C=C(C-C)-C-C: 2-etylbut-1-en