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Introduction To Organic Chemistry: Hydrocarbons

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Question 1
Free
Multiple Choice

Which of the following is true of nonane, image image ,which has a density of 0.79 g/mL,melts at -51 °C,and boils at 151 °C?

Choose correct answer/s
A

Nonane is soluble in water.

B

Nonane is a gas at room temperature.

C

Nonane is a solid at room temperature.

D

Nonane does not undergo combustion.

E

Nonane floats on the surface of water.

Check answer
Question 2
Free
Multiple Choice

A formula that shows the arrangement of all bonds in a molecule is called a(n) ________ .

Choose correct answer/s
A

molecular formula

B

expanded structural formula

C

condensed structural formula

D

condensed molecular formula

E

isomeric formula

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Question 3
Free
Multiple Choice

In the three-dimensional structure of methane, image ,the hydrogen atoms attached to a carbon atom are aligned ________ .

Choose correct answer/s
A

in a straight line

B

at the corners of a square

C

at the corners of a tetrahedron

D

at the corners of a rectangle

E

at the corners of a cube

Check answer
Question 4
Free
Multiple Choice

A hydrocarbon contains only the elements ________ .

Choose correct answer/s
A

hydrogen and oxygen

B

carbon and oxygen

C

carbon and hydrogen

D

carbon,hydrogen,and oxygen

E

carbon,hydrogen,and nitrogen

Check answer
Question 5
Free
Multiple Choice

Which of the following is not typical of most hydrocarbons?

Choose correct answer/s
A

high melting point

B

poor solubility in water

C

low boiling point

D

covalent bonding

E

high flammability

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Question 6
Multiple Choice

Organic chemistry is the study of the chemistry of compounds of ________ .

Choose correct answer/s
A
oxygen
B
hydrogen
C
living things
D
polymers
E
carbon
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Question 7
Multiple Choice

How many valence electrons does carbon have?

Choose correct answer/s
A
one
B
two
C
three
D
four
E
five
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Question 8
Multiple Choice

Carbon atoms always have how many covalent bonds?

Choose correct answer/s
A
one
B
two
C
three
D
four
E
five
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Question 9
Multiple Choice

The carbon atoms in saturated hydrocarbons ________ .

Choose correct answer/s
A
have only single bonds
B
contain at least one double bond
C
contain at least one triple bond
D
contain a benzene ring
E
contain both a double and a triple bond
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Question 10
Multiple Choice

An organic compound composed of carbon and hydrogen connected only by single bonds is an ________ .

Choose correct answer/s
A
alkane
B
alkene
C
alkyne
D
aromatic compound
E
alcohol
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Question 11
Multiple Choice

Which of these formulas is the expanded structural formula for an alkane with three carbon atoms?

Choose correct answer/s
A
image image
B
image image
C
image - image - image
D
C- C- C
E
H H H H - image - image - image - H image image image
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Question 12
Multiple Choice

What is the condensed structural formula for an alkane with four carbon atoms?

Choose correct answer/s
A
image -CH image CH- image
B
image image image - image
C
image image
D
C-C-C-C
E
H H H H - image - image - image - H image image image
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Question 13
Multiple Choice

What is the IUPAC name of the continuous chain alkane with six carbon atoms?

Choose correct answer/s
A
butane
B
pentane
C
hexane
D
heptane
E
octane
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Question 14
Multiple Choice

What is the IUPAC name of this compound? image - image - image - image - image - image - image

Choose correct answer/s
A
hexane
B
heptane
C
octane
D
butane
E
pentane
To unlock the question
Question 15
Multiple Choice

What is the IUPAC name of this compound? image - image - image - image - image

Choose correct answer/s
A
pentane
B
hexane
C
heptane
D
octane
E
methylbutane
To unlock the question
Question 16
Multiple Choice

What is the IUPAC name of image - image - image - image ?

Choose correct answer/s
A
ethane
B
propane
C
butane
D
pentane
E
hexane
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Question 17
Multiple Choice

Hydrocarbons are the primary constituents of ________ .

Choose correct answer/s
A
drugs
B
food flavors
C
fuels
D
fruit juices
E
disinfectants
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Question 18
Multiple Choice

The skeletal formula shown is that of ________ . image

Choose correct answer/s
A
butane
B
pentane
C
hexane
D
heptane
E
octane
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Question 19
Multiple Choice

A cycloalkane ________ .

Choose correct answer/s
A
has two fewer carbon atoms than the corresponding alkane
B
has two fewer hydrogen atoms than the corresponding alkane
C
contains - image groups joined by single bonds
D
always contains a three carbon ring
E
has no hydrogen atoms
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Question 20
Multiple Choice

The simplest cycloalkane has ________ .

Choose correct answer/s
A
one carbon atom
B
two carbon atoms
C
three carbon atoms
D
four carbon atoms
E
five carbon atoms
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