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Chapter 20: Organic Chemistry
Self-Quiz
Self-Quiz
This activity contains 16 questions.
Which of the following is a
false
statement about
organic chemistry
?
Organic compounds are prevalent in foods, drugs, petroleum products, and pesticides.
Most common smells are caused by organic molecules.
Organic chemistry involves the study of carbon-containing compounds and is important for understanding all living organisms.
All of the above are true statements.
Which of the following is true about carbon?
Carbon typically forms three covalent bonds within compounds.
Carbon can form double or triple bonds, which can change the shape of a molecule.
Carbon is one of the most important elements in the study of living organisms.
Carbon will bond with other elements, but not typically with other carbon atoms.
both A and B
both B and C
all of the above
none of the above
Alkanes have a general formula of
C
n
H
2
n
+2
C
2
n
+2
H
n
C
2
n
H
2
n
+2
C
n
H
2
n
C
n
H
2
n
-2
Butane and isobutane are examples of _________.
stereoisomers
geometric isomers
enantiomers
structural isomers
optical isomers
Chiral compounds
have one or more stereocenters in the molecule.
are nonsuperimposable mirror images.
have enantiomers.
exhibit optical isomerism.
all of the above
The correct IUPAC name for the following alkane is
4-ethyl-3,6-methyldecane.
4-ethyl-3,6-dimethyldecane.
2,3-diethyl-5-methylnonane.
7-ethyl-5,8-dimethyldecane.
2-butyl-4-ethyl-5-methylheptane.
The most common type of isomerism in alkenes is
structural isomerism.
optical isomerism.
geometric (
cis-trans
) isomerism.
all of the above
none of the above; alkenes don’t form isomers.
In the presence of heat or light, chloromethane gas will react with chlorine gas to produce which of the following?
CH
3
Cl (
g
) + Cl
2
(
g
) →
CH
2
Cl
2
(
g
) + HCl (
g
)
CHCl
3
(
g
) + HCl (
g
)
CCl
4
(
g
) + HCl (
g
)
CHCl
3
(
g
) + H
2
(
g
)
CH
3
Cl (
g
) + Cl
2
(
g
)
The prefix
meta
- refers to
1,1 disubstitution.
1,2 disubstitution.
1,3 disubstitution.
1,4 disubstitution.
all of the above disubstitutions.
The following molecule contains which functional group?
alcohol
ether
ketone
carboxylic acid
ester
Which of the following is the correct order of oxidation for an alkane?
alkane → alcohol → carboxylic acid → aldehyde
alkane → aldehyde → alcohol → carboxylic acid
alkane → carboxylic acid → aldehyde → alcohol
alkane → alcohol → aldehyde → carboxylic acid
alkane → aldehyde → carboxylic acid → alcohol
Aldehydes and ketones can be formed by the ____________ of alcohols.
combustion
oxidation
reduction
isomerization
all of the above
Members of which functional group are best known for their sweet smells?
alcohols
ethers
esters
carboxylic acids
ketones
The by-product of a condensation reaction between a carboxylic acid and an amine is
H
2
O.
H
3
O
+
.
OH
–
.
NaOH.
none of the above
What is the monomer unit of the polymer polystyrene, which has the structure shown below (
n
= 3)?
Nylon 6,6 and other polymers that eliminate an atom or a small group of atoms during polymerization are called
addition polymers.
condensation polymers.
elimination polymers.
substitution polymers.
aromatic polymers.
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