Organic Chemistry Final Exam 2024/2025
. . . H. . H. .H. .H. .H
. . . .| . . | . . | . . | . . |
H--C--C--C--C--O--H
. . . .| . . | . . | . . | . . |
. . . H. . H. .H. .H. .H
Which of these is a structural isomer of butanol??? (correct answer). . . H. .
H. .H. .H
. . . .| . . | . . | . . |
H--C--C--C--C--H
. . . .| . . | . . | . . |
. . . H. .O. . H. .H
. . . . . . .|
. . . . . . H
Which molecular formula corresponds to this model of a chemical compound?
. . . . . . . . ??
. . ?? . . .?? . .??
.?? . .?? . . ??
. . . . . ?? (correct answer)C?H?O?
What do the models represent? (correct answer)two geometric isomers that have the
same molecular formula
two models of a single organic compound
Which of the following is an organic compound? (correct answer)octane (C?H??)
Structural isomers are chemical compounds that have (correct answer)the same atoms
that are arranged in different orders.
How many isomers does hexane (C?H??) have? (correct answer)five
Which of the following represents an organic compound? (correct answer)H . . . . .
H
. . .C=C. . .
H . . . . . H
How many covalent bonds can a typical carbon atom form? (correct answer)four
Which statement best describes why carbon can form a wide variety of organic
compounds? (correct answer)Each carbon atom covalently bonds with atoms of carbon,
hydrogen, oxygen, and nitrogen.
Is the student correct? (correct answer)No, a hydrocarbon contains only carbon and
hydrogen atoms.
What is a disadvantage of using a space-filling model to show a chemical compound?
(correct answer)Space-filling models provide a two-dimensional view of the
molecule.
Space-filling models do not identify the number and type of bonds.
_Space-filling models do not show all atoms in the molecule.
Space-filling models show information about composition but not structure.
What would a substance that could undergo condensation polymerization most likely
have? (correct answer)_two double bonds
a triple bond
two aldehyde functional groups
two alcohol functional groups
, What is a disadvantage of using a structural model to show a chemical compound?
(correct answer)Structural models provide minimal three-dimensional information.
A carbon atom can bond with other atoms in a variety of ways. Which set of bonds
would a typical carbon atom form in a compound? (correct answer)a triple bond and a
single bond
Which model would be most helpful in her research? (correct answer)the ball-and-
stick model
Which best explains the difference between a ball-and-stick model of a chemical
compound and a space-filling model? (correct answer)_Ball-and-stick models can show
compounds in three dimensions, but space-filling models cannot.
Ball-and-stick models show the bonds between atoms, but not the relative sizes of
atoms. Space-filling models show the relative sizes of atoms, but not the bonds
between atoms.
Space-filling models show the bonds between atoms, but not the relative sizes of
atoms. Ball-and-stick models show the relative sizes of atoms, but not the bonds
between atoms.
Which of the following best describes a possible carbon compound? (correct
answer)One carbon atom forms a double bond with an oxygen atom and two single bonds
with two hydrogen atoms.
What are geometric isomers? (correct answer)compounds that have the same atoms
arranged in the same order, but with different three-dimensional orientations
Which property differentiates this alkane from other classes of alkanes??? (correct
answer)the shape
How does a straight-chain alkane that has five carbon atoms differ from a
cycloalkane that has five carbon atoms? (correct answer)The straight-chain alkane
has two more hydrogen atoms than the cycloalkane.
A plastic that is composed of a saturated hydrocarbon would have molecules that are
most like those in which material? (correct answer)asphalt
When is di- used in the name of a hydrocarbon? (correct answer)when there are two
identical substituents
Which compound is used to make asphalt? (correct answer)a saturated hydrocarbon
that has more than 35 carbons in its chain
Which of these compounds would most likely be found in a deposit of natural gas?
(correct answer)CH?
Why do thicker lubricating oils have higher melting points? (correct answer)They
have longer chains of carbons.
Unsaturated hydrocarbons have a higher density than saturated hydrocarbons.
Which alkane is the isomer of butane called 2-methylpropane? (correct answer)..|
/\
Saturated hydrocarbons with what length of carbon chain are the best lubricants?
(correct answer)17-35
What is a characteristic of straight chained alkanes? (correct answer)They have
carbons bonded in a single row from one end of the molecule to the other end of the
. . . H. . H. .H. .H. .H
. . . .| . . | . . | . . | . . |
H--C--C--C--C--O--H
. . . .| . . | . . | . . | . . |
. . . H. . H. .H. .H. .H
Which of these is a structural isomer of butanol??? (correct answer). . . H. .
H. .H. .H
. . . .| . . | . . | . . |
H--C--C--C--C--H
. . . .| . . | . . | . . |
. . . H. .O. . H. .H
. . . . . . .|
. . . . . . H
Which molecular formula corresponds to this model of a chemical compound?
. . . . . . . . ??
. . ?? . . .?? . .??
.?? . .?? . . ??
. . . . . ?? (correct answer)C?H?O?
What do the models represent? (correct answer)two geometric isomers that have the
same molecular formula
two models of a single organic compound
Which of the following is an organic compound? (correct answer)octane (C?H??)
Structural isomers are chemical compounds that have (correct answer)the same atoms
that are arranged in different orders.
How many isomers does hexane (C?H??) have? (correct answer)five
Which of the following represents an organic compound? (correct answer)H . . . . .
H
. . .C=C. . .
H . . . . . H
How many covalent bonds can a typical carbon atom form? (correct answer)four
Which statement best describes why carbon can form a wide variety of organic
compounds? (correct answer)Each carbon atom covalently bonds with atoms of carbon,
hydrogen, oxygen, and nitrogen.
Is the student correct? (correct answer)No, a hydrocarbon contains only carbon and
hydrogen atoms.
What is a disadvantage of using a space-filling model to show a chemical compound?
(correct answer)Space-filling models provide a two-dimensional view of the
molecule.
Space-filling models do not identify the number and type of bonds.
_Space-filling models do not show all atoms in the molecule.
Space-filling models show information about composition but not structure.
What would a substance that could undergo condensation polymerization most likely
have? (correct answer)_two double bonds
a triple bond
two aldehyde functional groups
two alcohol functional groups
, What is a disadvantage of using a structural model to show a chemical compound?
(correct answer)Structural models provide minimal three-dimensional information.
A carbon atom can bond with other atoms in a variety of ways. Which set of bonds
would a typical carbon atom form in a compound? (correct answer)a triple bond and a
single bond
Which model would be most helpful in her research? (correct answer)the ball-and-
stick model
Which best explains the difference between a ball-and-stick model of a chemical
compound and a space-filling model? (correct answer)_Ball-and-stick models can show
compounds in three dimensions, but space-filling models cannot.
Ball-and-stick models show the bonds between atoms, but not the relative sizes of
atoms. Space-filling models show the relative sizes of atoms, but not the bonds
between atoms.
Space-filling models show the bonds between atoms, but not the relative sizes of
atoms. Ball-and-stick models show the relative sizes of atoms, but not the bonds
between atoms.
Which of the following best describes a possible carbon compound? (correct
answer)One carbon atom forms a double bond with an oxygen atom and two single bonds
with two hydrogen atoms.
What are geometric isomers? (correct answer)compounds that have the same atoms
arranged in the same order, but with different three-dimensional orientations
Which property differentiates this alkane from other classes of alkanes??? (correct
answer)the shape
How does a straight-chain alkane that has five carbon atoms differ from a
cycloalkane that has five carbon atoms? (correct answer)The straight-chain alkane
has two more hydrogen atoms than the cycloalkane.
A plastic that is composed of a saturated hydrocarbon would have molecules that are
most like those in which material? (correct answer)asphalt
When is di- used in the name of a hydrocarbon? (correct answer)when there are two
identical substituents
Which compound is used to make asphalt? (correct answer)a saturated hydrocarbon
that has more than 35 carbons in its chain
Which of these compounds would most likely be found in a deposit of natural gas?
(correct answer)CH?
Why do thicker lubricating oils have higher melting points? (correct answer)They
have longer chains of carbons.
Unsaturated hydrocarbons have a higher density than saturated hydrocarbons.
Which alkane is the isomer of butane called 2-methylpropane? (correct answer)..|
/\
Saturated hydrocarbons with what length of carbon chain are the best lubricants?
(correct answer)17-35
What is a characteristic of straight chained alkanes? (correct answer)They have
carbons bonded in a single row from one end of the molecule to the other end of the
