Properties and Uses of Unsaturated Hydrocarbons Answers
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Which product is made up of fatty acids that are derived from alkenes?
A
margarineB
polystyrene cupsC
pain relieversD
rubber tires2
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Which is composed of alkynes?
A
acetyleneB
margarineC
rubber tiresD
polystyrene cups3
Which is composed of aromatic hydrocarbons?
A
clothingB
barbeque fuelC
pain relieversD
polyvinyl chloride4
What is the name for this molecule?
A
3-heptyneB
3-hepteneC
3-hexyneD
3-hexene5
Which is a property of both alkenes and alkynes?
A
Both are highly water soluble.B
The pH of these hydrocarbons tends to be very basic.C
Their boiling points tend to increase with chain length.D
Their densities are all much higher than that of water.6
How are the vapor pressure and boiling point of alkynes affected as the chain length increases?
A
Both vapor pressure and boiling point decrease.B
Both vapor pressure and boiling point increase.C
Vapor pressure increases, and boiling point decreases.D
Vapor pressure decreases, and boiling point increases.7
What is the name of a hydrocarbon that has the formula CH3(CH2)4CCH?
A
6-heptyneB
1-hepteneC
1-heptyneD
6-heptene8
Which is a property of alkynes?
A
Alkynes have a neutral pH.B
Alkynes tend to be acidic.C
Alkynes tend to be soluble in water.D
Alkynes are not combustible9
Rubber is manufactured from latex that is produced from rubber trees. Which statement about rubber is true?
A
It is made from the polymerization of a long chain of aromatic molecules.B
It is made from the polymerization of a short chain of chloroprene molecules.C
It is made from the polymerization of a long chain of alkene molecules.D
It is made from the polymerization of a short chain of styrene molecules.10
Which of the molecules below is propyne?
A
Two carbons are double bonded to each other; the pair is single bonded to H above left, below left, and below right, and to C H 3 above right.
B
Two carbons are double bonded to each other; the pair is single bonded to C H 3 above left and right, and to H below left and right.
C
An H is single bonded to C, which is triple bonded to another C, which in turn is single bonded to a C with H above and below and yet another C to the right; the final C is bonded to H above, below, and right.
D
An H is single bonded to C, which is triple bonded to another C, which in turn is single bonded to a C which is bonded to H above, below, and right.
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