CHEM 120 Exam 3 Chamberlain College of Nursing 2026 |
Most Tested Questions & Verified Answers | Graded A+
1. Which of these is an example of a halocarbon?
CF2Cl2
NO
CH4
N2O
CO2
2. Describe the structure of H2C=CH-CH=CH2 and explain why it is classified as
an alkene.
H2C=CH-CH=CH2 is a cyclic compound with no double bonds.
H2C=CH-CH=CH2 contains only single bonds, making it an alkane.
H2C=CH-CH=CH2 is a saturated hydrocarbon with only single bonds.
H2C=CH-CH=CH2 has a linear structure with alternating double
bonds, classifying it as an alkene due to the presence of carbon-
carbon double bonds.
3. Carboxylic acids are
Organic acids
Compounds that contain a carboxyl group -COOH
Named with the ending 'ic acid'
All of the above statements are true.
,4. Describe the structural feature that distinguishes alkynes from other types of
hydrocarbons.
Alkynes are saturated hydrocarbons with no double or triple bonds.
Alkynes are distinguished by the presence of a triple bond between
two carbon atoms.
Alkynes are characterized by having only single bonds between
carbon atoms.
Alkynes have a unique functional group that includes oxygen.
5. What is one common use of alpha radiation in industry?
Food preservation
Medical imaging
X-ray machines
Smoke detectors
6. Describe the structure of an amine and how it differs from other functional
groups.
Amines consist of a sulfur atom bonded to carbon atoms, which is
characteristic of thiols.
Amines consist of a carbon atom double-bonded to an oxygen atom,
making them similar to carbonyl compounds.
Amines consist of a nitrogen atom bonded to hydrogen and/or
carbon atoms, distinguishing them from alcohols and carboxylic
acids, which contain oxygen.
Amines consist of a carbon atom bonded to a hydroxyl group, making
them similar to alcohols.
,7. Describe how gamma radiation is utilized in medical imaging.
Gamma radiation is used to sterilize surgical instruments.
Gamma radiation is used in medical imaging to create detailed
images of the body's internal structures, often through techniques
like PET scans.
Gamma radiation is used to enhance the flavor of food.
Gamma radiation is used to treat infections.
8. Describe the structural features that distinguish alkanes from alkenes and
alkynes.
Alkanes have higher boiling points than alkenes and alkynes due to
their double bonds.
Alkanes are cyclic compounds, whereas alkenes and alkynes are
linear.
Alkanes are characterized by having only single bonds between
carbon atoms, while alkenes have at least one double bond and
alkynes have at least one triple bond.
Alkanes contain functional groups, while alkenes and alkynes do not.
9. Describe the significance of the hydroxyl group in the structure of phenol.
The hydroxyl group is responsible for phenol's high boiling point.
The hydroxyl group in phenol contributes to its properties as an
aromatic compound and affects its reactivity.
The hydroxyl group makes phenol a saturated hydrocarbon.
The hydroxyl group prevents phenol from participating in chemical
reactions.
, 10. If you were to synthesize an ether from two alcohols, what reaction would
you use, and what would be the main product?
Hydrogenation reaction producing an alkane
Oxidation reaction producing a ketone
Dehydration reaction producing an ether
Hydrolysis reaction producing an alcohol
11. Describe the structure of benzene and explain its significance in organic
chemistry.
Benzene has a branched structure that allows for various functional
groups.
Benzene consists of a chain of carbon atoms with no double bonds.
Benzene has a hexagonal ring structure with alternating double
bonds, which contributes to its stability and unique chemical
properties.
Benzene is a linear molecule with single bonds, making it highly
reactive.
12. What is the family of hydrocarbon present in naphthalene, a compound that
makes up moth balls?
ester
alcohol
amine
aromatic hydrocarbon
Most Tested Questions & Verified Answers | Graded A+
1. Which of these is an example of a halocarbon?
CF2Cl2
NO
CH4
N2O
CO2
2. Describe the structure of H2C=CH-CH=CH2 and explain why it is classified as
an alkene.
H2C=CH-CH=CH2 is a cyclic compound with no double bonds.
H2C=CH-CH=CH2 contains only single bonds, making it an alkane.
H2C=CH-CH=CH2 is a saturated hydrocarbon with only single bonds.
H2C=CH-CH=CH2 has a linear structure with alternating double
bonds, classifying it as an alkene due to the presence of carbon-
carbon double bonds.
3. Carboxylic acids are
Organic acids
Compounds that contain a carboxyl group -COOH
Named with the ending 'ic acid'
All of the above statements are true.
,4. Describe the structural feature that distinguishes alkynes from other types of
hydrocarbons.
Alkynes are saturated hydrocarbons with no double or triple bonds.
Alkynes are distinguished by the presence of a triple bond between
two carbon atoms.
Alkynes are characterized by having only single bonds between
carbon atoms.
Alkynes have a unique functional group that includes oxygen.
5. What is one common use of alpha radiation in industry?
Food preservation
Medical imaging
X-ray machines
Smoke detectors
6. Describe the structure of an amine and how it differs from other functional
groups.
Amines consist of a sulfur atom bonded to carbon atoms, which is
characteristic of thiols.
Amines consist of a carbon atom double-bonded to an oxygen atom,
making them similar to carbonyl compounds.
Amines consist of a nitrogen atom bonded to hydrogen and/or
carbon atoms, distinguishing them from alcohols and carboxylic
acids, which contain oxygen.
Amines consist of a carbon atom bonded to a hydroxyl group, making
them similar to alcohols.
,7. Describe how gamma radiation is utilized in medical imaging.
Gamma radiation is used to sterilize surgical instruments.
Gamma radiation is used in medical imaging to create detailed
images of the body's internal structures, often through techniques
like PET scans.
Gamma radiation is used to enhance the flavor of food.
Gamma radiation is used to treat infections.
8. Describe the structural features that distinguish alkanes from alkenes and
alkynes.
Alkanes have higher boiling points than alkenes and alkynes due to
their double bonds.
Alkanes are cyclic compounds, whereas alkenes and alkynes are
linear.
Alkanes are characterized by having only single bonds between
carbon atoms, while alkenes have at least one double bond and
alkynes have at least one triple bond.
Alkanes contain functional groups, while alkenes and alkynes do not.
9. Describe the significance of the hydroxyl group in the structure of phenol.
The hydroxyl group is responsible for phenol's high boiling point.
The hydroxyl group in phenol contributes to its properties as an
aromatic compound and affects its reactivity.
The hydroxyl group makes phenol a saturated hydrocarbon.
The hydroxyl group prevents phenol from participating in chemical
reactions.
, 10. If you were to synthesize an ether from two alcohols, what reaction would
you use, and what would be the main product?
Hydrogenation reaction producing an alkane
Oxidation reaction producing a ketone
Dehydration reaction producing an ether
Hydrolysis reaction producing an alcohol
11. Describe the structure of benzene and explain its significance in organic
chemistry.
Benzene has a branched structure that allows for various functional
groups.
Benzene consists of a chain of carbon atoms with no double bonds.
Benzene has a hexagonal ring structure with alternating double
bonds, which contributes to its stability and unique chemical
properties.
Benzene is a linear molecule with single bonds, making it highly
reactive.
12. What is the family of hydrocarbon present in naphthalene, a compound that
makes up moth balls?
ester
alcohol
amine
aromatic hydrocarbon
