Question 1

The physical properties of alkynes are very different from those of alkenes.

Accepted Answer

A) True 
 B)False

Question 2

Which characteristic relates to alkenes but not the other hydrocarbon families?

Accepted Answer

A)   saturation
B)   halogen substitution
C)   double bonds
D)   triple bondsE) B) and C)
F) A) and D)

Question 3

The branch name for a benzene group in the compound below is phenyl.

Accepted Answer

A) True 
 B)False

Question 4

Alkenes must have at least two carbon atoms.

Accepted Answer

A) True 
 B)False

Question 5

Which of the following compounds could exhibit geometric isomerism?

Accepted Answer

A)  
B)  
C)  
D)  E) A) and C)
F) B) and D)

Question 6

Acetylene is commercially useful as a fuel for torches and as

Accepted Answer

A)   a starting material for plastics.
B)   an industrial solvent.
C)   an ingredient in pesticides.
D)   a component in paint formulations.E) B) and C)
F) A) and B)

Question 7

Identify the statement about lycopene that is true.

Accepted Answer

A)   Lycopene is known as Vitamin C.
B)   Lycopene gives watermelon their red color.
C)   Raw tomatoes are a better source of lycopene than cooked tomatoes.
D)   Lycopene should not be eaten with fatty foods.E) B) and C)
F) C) and D)

Question 8

Poly (vinyl chloride) ,PVC,is used for water pipes and synthetic leather.What is the monomer of the PVC polymer shown below?

Accepted Answer

A)  
B)  
C)  
D)  E) All of the above
F) A) and C)

Question 9

What would the reaction of hydrogen fluoride with ethene be an example of?

Accepted Answer

A)   hydration
B)   halogenation
C)   hydrohalogenation
D)   fluorinationE) A) and C)
F) All of the above

Question 10

Name a difference between a saturated and an unsaturated hydrocarbon.

Accepted Answer

A)   Saturated hydrocarbons are composed of only carbon and hydrogen,and unsaturated hydrocarbons include other atoms than just carbon and hydrogen.
B)   Saturated hydrocarbons do not contain multiple bonds between carbons,but unsaturated hydrocarbons do contain multiple bonds.
C)   Unsaturated hydrocarbons are flammable but saturated hydrocarbons are not.
D)   Saturated hydrocarbons are essentially insoluble.Unsaturated hydrocarbons are soluble.E) B) and C)
F) None of the above

Question 11

The benzene ring as a branch is called a _____ group.

Accepted Answer

A)   hexyl
B)   benzyl
C)   phenol
D)   phenylE) None of the above
F) A) and C)

Question 12

A major source of aromatic compounds is _____ .

Accepted Answer

A)   coal tar
B)   plants
C)   animals
D)   soilsE) A) and B)
F) B) and C)

Question 13

What is the characteristic of aromatic compounds that is responsible for them being named aromatic compounds?

Accepted Answer

A)   The compounds have a pleasant smell.
B)   These compounds contain a benzene ring or structural relative.
C)   A requirement is to contain a hydrocarbon chain that is either saturated or unsaturated and at least 3 carbons long.
D)   There is more than one correct response.E) None of the above
F) A) and B)

Question 14

A characteristic of alkynes is a region of strong polarity caused by the multiple bond.

Accepted Answer

A) True 
 B)False

Question 15

Two moles of hydrogen gas would be required to convert one mole of 2-butyne into butane.

Accepted Answer

A) True 
 B)False

Question 16

Indicate the geometry around each of the carbon atoms in the following molecule.

Accepted Answer

A)   1 - triangular,2- tetrahedral,3 - linear
B)   1 - linear,2- tetrahedral,3 - triangular
C)   1 - tetrahedral,2- tetrahedral,3 - linear
D)   1 - triangular,2- linear,3 - tetrahedralE) C) and D)
F) A) and B)

Question 17

Which of the following represents an addition reaction?

Accepted Answer

A)   HX + C4H8  →\rarr→  C4H9X
B)   X2 + C3H6   →\rarr→ C3H5X + HX
C)   C4H8   →\rarr→ C4H6 + H2
D)   more than one response is correct E) B) and D)
F) All of the above

Question 18

Name the following compound.

Accepted Answer

A)   5-bromo-2-hexyne
B)   bromo-4-hexyne
C)   1-bromo-1-methyl-3-pentyne
D)   none of these are correctE) B) and D)
F) B) and C)

Question 19

Markovnikov's rule indicates that in the addition of H-X to an alkene,the hydrogen becomes attached to the carbon atom that is already bonded to more hydrogens.

Accepted Answer

A) True 
 B)False

Question 20

Naphthalene is used as _____ .

Accepted Answer

A)   an explosive
B)   moth repellent
C)   a pain reliever
D)   a solventE) C) and D)
F) B) and C)

Exam 12: Unsaturated Hydrocarbons

Alkenes must have at least two carbon atoms.

Correct AnswerverifiedShow Answer

The physical properties of alkynes are very different from those of alkenes.

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Markovnikov's rule indicates that in the addition of H-X to an alkene,the hydrogen becomes attached to the carbon atom that is already bonded to more hydrogens.

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Which of the following compounds could exhibit geometric isomerism?

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Which characteristic relates to alkenes but not the other hydrocarbon families?

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Name a difference between a saturated and an unsaturated hydrocarbon.

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Naphthalene is used as _____ .

Correct AnswerverifiedShow Answer

A characteristic of alkynes is a region of strong polarity caused by the multiple bond.

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The benzene ring as a branch is called a _____ group.

Correct AnswerverifiedShow Answer

Name the following compound.

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Which of the following represents an addition reaction?

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Two moles of hydrogen gas would be required to convert one mole of 2-butyne into butane.

Correct AnswerverifiedShow Answer

A major source of aromatic compounds is _____ .

Correct AnswerverifiedShow Answer

Acetylene is commercially useful as a fuel for torches and as

Correct AnswerverifiedShow Answer

The branch name for a benzene group in the compound below is phenyl.

Correct AnswerverifiedShow Answer

Identify the statement about lycopene that is true.

Correct AnswerverifiedShow Answer

Poly (vinyl chloride) ,PVC,is used for water pipes and synthetic leather.What is the monomer of the PVC polymer shown below?

Correct AnswerverifiedShow Answer

What would the reaction of hydrogen fluoride with ethene be an example of?

Correct AnswerverifiedShow Answer

Indicate the geometry around each of the carbon atoms in the following molecule.

Correct AnswerverifiedShow Answer

What is the characteristic of aromatic compounds that is responsible for them being named aromatic compounds?

Correct AnswerverifiedShow Answer

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