Isomers – Worksheet #6
1. Which of these pairs are structural isomers?
H
H
Cl
H
a.
Cl
C
C
H
H
Cl
H
C
H
Cl
H
Br
H
C C
H
Br
Br
Br
C C
H
H
b.
C
c.
H
H
Cl
C
C
H
H
Cl
H
Cl
Cl
C
C
H
H
H
H
d.
H
H
H
C
H
H
H
C
C
C
H
H
H
H
C
H
C
H
H
H
H
C
H
H
C
H
H
e.
H
H
H
O
H
C
C
C
H
H
H
H
H
H
H
H
C
C
C
H
H
H
OH
2. Examine each of the following pairs of structures and decide if the two are identical, isomers or
different compounds.
Chemical structure
CH3
a.
CH3
b.
d.
H3C
H3C
CH2
CH3
CH2
H3C
OH
H3C
CH2
H2C
H3C
CH
CH3
CH3
CH2
H3 C
c.
Chemical structure
CH2
CH2
CH2
CH2
OH
Identical/
Isomers/
Different
compounds
e.
O
H3C
O
C
H
H
C
CH3
CH3
CH3
f.
H3C
H3C
CH
CH
CH3
CH3
H
g.
H3C
CH2
NH2
H3C
N
CH3
O
O
h.
H3 C
CH2
C
O
H
H
O
C
O
i.
H
CH2
CH3
O
H
O
C
O
CH2
CH3
H3 C
CH2
C
O
O
j.
H
C O
CH2
OH
HO
CH2
CH2
C
OH
O
k.
O
H3C C CH2CH3
H3 C
l.
CH2
CH
H3C CH2
C CH3
CH3
H2C
CH2
CH3
H2 C
C
CH3
HC
CH3
CH3
H3C
CH
CH2
CH2
CH2
CH3
CH3
CH3
C
CH
CH3
O
O
m.
H3C
NH
C
CH3
H3C CH2
C
NH2
n.
H O O H
o.
H3C
CH3
C
CH2
C
H3C
H
C
H
p.
H3C
C
H3C
H3C
H O H
C
H3C
CH3
C
H3C
CH3
CH2
C
H
H3C
H
C
CH3
CH3