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890 Answers
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8.
a.
Benzoic acid is more reactive than benzene toward electrophilic aromatic substitution.
F
b.
para
-Chlorobenzoic acid is more acidic than
para
-methoxybenzoic acid.
T
c.
A
CH CH
2
group is a meta director.
F
d.
para
-Nitroaniline is more basic than
para
-chloroaniline.
F
9.
+
H
Y
+
H
Y
+
H
Y
Answers to Chapter 19 Practice Test
1.
a.
2,4-dimethyl pyrrolidine
c.
3-ethyltetrahydrofuran
2,4-dimethylazacyclopentane
3-ethyloxacyclopentane
b.
N
-methylpiperidine
d.
3-bromopiperidine
N
-methylazacyclohexane
3-bromoazacyclohexane
2.
a.
CH
3
NHCH
2
CH
3
+
CH
3
CH
2
NH
3
+
Cl
−
C
O
d.
N
+
CH
3
b.
N
+
H
2
O
e.
O Cl
c.
N
Br
3.
a.
N
O
H H
+
b.
N
H
+
c.
N
N
H
+
d.
N
H
4.
a.
4-Chloropyridine is more reactive toward nucleophilic aromatic substitution than is 3-chloropyrrole.
T
b.
Pyrrole is more reactive toward electrophilic aromatic substitution than is furan.
T
c.
Pyrrole is more reactive toward electrophilic aromatic substitution than is benzene.
T
d.
Pyridine is more reactive toward electrophilic aromatic substitution than is benzene.
F
5.
S
+
Cl
O
1. SnCl
4
2. H
2
O
1. CH
3
MgBr
2. H
2
O
S
O
S
OH