1. 3
1
1.1 C3H8
1.2 C3H6
1.3 C3H4
1.4 C5H12
1.5 C6H12
2.
H H
H C C C C H
H H H H
CH 3
H
H 3C CH C CH 2 OH
CH 3
(
H H
H C C C C C C H
H H H H

2. O
Br
Cl
2.