Unit 12 Study Guide
1.
True or false? When carbon has four atoms bound
to it, these atoms will have a square planar arrangement
about the carbon.
A) True
B) False
10.
What is the correct formula for the simplest
unsaturated alkene that contains seven carbon atoms?
A) C7H10
B) C7H12
C) C7H14
D) C7H16
E) C7H18
2.
True or false? Carbon can form single and double
bonds with other atoms, but not triple bonds.
A) True
B) False
11.
True or false? Benzene has the formula C6H6 and a
planar (flat) structure in which all the bond angles are
109.5o.
A) True
B) False
3.
True or false? Those compounds whose carboncarbon bonds are all single bonds are said to be unsaturated.
A) True
B) False
4.
12.
Name the following molecule.
13.
Name the following molecule.
14.
Name the following molecule.
CH3
True or false? Butane is an example of an alkane.
A) True
B) False
5.
True or false? A straight-chain saturated
hydrocarbon cannot contain more than 10 carbon atoms.
A) True
B) False
6.
True or false? In an unsaturated hydrocarbon, the
carbon-carbon bond angles are always 120o.
A) True
B) False
7.
What is the correct formula for the saturated alkane
that contains nine carbon atoms?
A) C9H18
B) C9H20
C) C9H16
D) C9H9
E) C9H7
CH3
C
CH3
CH
CH3
CH2
CH
CH3
CH2
8.
What is the correct formula for the saturated alkane
that contains four carbon atoms?
A) C4H4
B) C4H6
C) C4H8
D) C4H12
E) C4H10
CH3
CH2
CH2
C
CH2
CH3
C
CH3
CH2
CH3
CH3
A)
B)
C)
D)
E)
9.
What is the correct formula for the unsaturated
alkene that contains four carbon atoms?
A) C4H8
B) C4H6
C) C4H4
D) C4H10
E) C4H12
Page 1
2,2,3,5-tetramethyl-7-propyl-7-t-butyldecane
6-propyl-2,6-di-t-butylnonane
2,2,5,7,8,8-hexamethyl-3,3-dipropylnonane
isonanane
none of these
15.
Name the following molecule.
A)
B)
C)
D)
E)
19.
n-hexane
isohexane
1,2,3-trimethylpropane
methyl-diethylmethane
3-methylpentane
is the carbon skeleton (minus any hydrogen atoms) of
I. C12H26
II. a substituted octane
III. a compound with 3 tertiary carbons
IV. a compound with 3 secondary carbons
V. a compound with 2 isopropyl groups
A) I, II, III
B) II, III, IV
C) III, IV, V
D) II, IV, V
E) I, II, III, IV
16.
Name the following molecule.
CH3 – (CH2)7 – CH3
A) heptane
B) hexane
C) octane
D) nonane
E) decane
20.
17.
A student gave a molecule the following name:
2-ethyl-3-methyl-5-isopropylhexane
However, her TA pointed out that although the molecule
could be drawn correctly from this name, the name violates
the systematic rules. What is the correct (systematic) name
of the molecule?
A) 3,4-dimethyl-6-isopropylheptane
B) 2-isopropyl-4,5-dimethylheptane
C) 3,4,6,7-tetramethyloctane
D) 1,2-diethyl-3,6,7-trimethylheptane
E) 2,3,5,6-tetramethyloctane
is the carbon skeleton (minus any hydrogen atoms) of
A) 2,4-diethyl-3,6-dimethylheptane
B) 2,5-dimethyl-4,6-diethylheptane
C) 1,4-diethyl-3,6-dimethyl-tridecane
D) 5-ethyl-3,6-trimethyloctane
E) 4-ethyl-2,5,6-trimethyloctane
18.
In lecture, the professor named a molecule 2-ethyl4-tertiary-butylpentane. An alert student pointed out that
although the correct structure could be drawn from this
name, the name did not follow systematic rules. What is the
correct systematic name for the molecule?
A) 2-t-butyl-5-methylhexane
B) 2-ethyl-4,5,5-trimethylhexane
C) 3,5,6,6-tetramethylheptane
D) 2,2,3,5-tetramethylheptane
E) undecane
21.
Name the following molecule.
22.
Draw the structural formula for 2,2dimethylpropane.
23.
Draw the structural formula for 3-ethyl-4methylheptane.
24.
True or false? Amines are characterized by the
presence of the -OH group.
A) True
B) False
25.
True or false? Carboxylic acids are characterized by
the presence of the -COOH group.
A) True
B) False
Page 2
26.
True or false? Aldehydes are characterized by the
presence of the -COH group (where carbon is double bonded
to the oxygen atom and single bonded to the hydrogen).
A) True
B) False
36.
37.
Draw the structural formula for 2-phenylpropane.
Name the following:
27.
Give the name of the molecule
CH3CH=CHCH2CH3.
28.
Give the name of the molecule.
A)
B)
C)
D)
38.
29.
The general name given to hydrocarbons with triple
bonds is
A) alkenes
B) alkynes
C) alkanes
D) unsaturated hydrocarbons
E) aromatic hydrocarbons
30.
31.
Name the molecule CH3CCCH2CH3.
33.
Draw the structural formula for 3-methyl-2-hexene.
34.
Draw the structural formula for 4-ethyl-2-octyne.
35.
Cl
40.
Which of the following has the least number of C –
O bonds?
A) ketone
B) alcohol
C) ether
D) ester
E) Two of the above are equal.
1-hexyne
2-ethynyl butane
2-ethyl-3-butyne
3-methyl-1-pentyne
3-methyl-4-pentyne
32.
acid
aldehyde
amine
ketone
carbonyl
39.
Which of the following has the greatest number of
C – O bonds?
A) ketone
B) ester
C) alcohol
D) amine
E) aldehyde
Name the following molecule.
A)
B)
C)
D)
E)
Classify the following molecule.
A)
B)
C)
D)
E)
CH3CCCH2CH2Cl is named
A) 1-chloro-3-pentyne
B) 5-chloro-2-pentene
C) 1-acetylenyl-3-chloropropane
D) 5-chloro-2-pentyne
E) 1-chloro-3-pentene
1,1,1-trichloro-5-bromo-3-pentene
5,5,5-trichloro-1-bromo-2-pentene
1,1,1-trichloro-5-bromo-2-pentene
1,1,1-trichloro-5-bromo-3-pentyne
41.
42.
True or false? Esters have sweet, fruity odors.
A) True
B) False
Give the name for the following molecule.
43.
Write the structural formula for 3-isopropyl-3heptanol.
Name the molecule below.
44.
True or false? Acetic acid is the common name for
ethanoic acid.
A) True
B) False
Cl
Page 3
45.
True or false? Formic acid is the common name for
pentanoic acid.
A) True
B) False
53.
46.
Which of the following is found in beverages such
as wine?
A) methanol
B) ethanol
C) propanol
D) isopropanol
E) none of these
47.
55.
Identify the type of organic compound shown.
A)
B)
C)
D)
E)
48.
54.
Name the following compound.
The name methanal is the systematic name for
A) acetone
B) formaldehyde
C) rubbing alcohol
D) acetaldehyde
E) water
Name the following.
aldehyde
ester
amine
ketone
none of these
A)
B)
C)
D)
E)
Identify the type of organic compound shown.
2-chloro-3-ethyl-1-isopropylbutanone
isopropyl-chloromethylbutyl ketone
2-butylchloroisobutanoyl methane
4-chloro-2,5-dimethyl-3-heptanone
3-methyl-4-chloro-1-isopropylpentanone
56.
Name the following compound.
CH3COOH
A)
B)
C)
D)
E)
49.
50.
aldehyde
ester
amine
ketone
none of these
57.
Name the following compound.
Name the following compound.
58.
acid.
Draw the structural formula for 3-ethylhexanoic
59.
Nylon is an example of a
A) copolymer
B) homopolymer
C) dimer
D) two of these
E) none of these
60.
Teflon is an example of a
A) copolymer
B) homopolymer
C) dimer
D) two of these
E) none of these
Name the following compound.
O
H3CHCH2CH
51.
Draw the structural formula for pentanal.
52.
Draw the structural formula for 3,4-dichlorooctanal.
Page 4
Answer Key
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
21.
22.
B
B
B
A
B
B
B
E
A
C
B
2-methylbutane
2,4-dimethylpentane
A
E
D
E
D
A
E
2,4-dimethylhexane
25.
26.
27.
28.
29.
30.
31.
32.
33.
34.
35.
1,3dichlorobenzene or mdichlorobenzene
36.
CH3CHCH3
37.
38.
39.
40.
41.
42.
23.
A
A
2-pentene
2-methyl-2-butene
B
D
D
2-pentyne
B
B
B
B
A
2-butanol
43.
44.
45.
46.
47.
48.
49.
50.
51.
52.
53.
propanone (acetone)
54.
B
55.
D
56.
ethanoic acid (acetic
acid)
57.
4-chloro-2methylpentanoic acid
58.
59.
60.
24.
B
Page 2
A
B
B
D
A
3-chlorohexanal
3-phenylbutanal
A
B