AnswersChemistryProperties and Uses of Saturated Hydrocarbons

Properties and Uses of Saturated Hydrocarbons — Quiz Answers

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1
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Saturated hydrocarbons with what length of carbon chain are the best lubricants?

A
more than 35
B
17–35
C
5–8
D
1–2
2
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Which alkane is the isomer of butane called 2-methylpropane?

A
Image with description A three-carbon chain has 2 lines extending from the same side of the center carbon.
B
Image with description A 5-carbon chain.
C
Image with description A skeletal model of a 4-carbon chain has a straight line extending from the second and third carbons in the chain.
D
Image with description A three-carbon chain has a straight line extending from the center carbon.
3

What is a property of all alkanes?

A
They have a tendency not to burn.
B
They have the same boiling point.
C
They are highly reactive.
D
They are insoluble in water.
4

Which of these compounds would most likely be found in a deposit of natural gas?

A
CH sub 3 CH sub 2 CH sub 2 CH sub 2 CH sub 2 CH sub 2 CH sub 2 CH sub 3
B
CH sub 3 CH sub 2 CH sub 2 CH sub 2 CH sub 2 CH sub 2 CH sub 2 CH sub 2 OH
C
CH sub 3 OH
D
CH sub 4
5

Which compound is used to make asphalt?

A
a saturated hydrocarbon that has between 17 and 35 carbons in its chain
B
a saturated hydrocarbon that has between 5 and 8 carbons in its chain
C
a saturated hydrocarbon that has more than 35 carbons in its chain
D
a saturated hydrocarbon that has between 1 and 2 carbons in its chain
6

Why do thicker lubricating oils have higher melting points?

A
They have longer chains of carbons.
B
Unsaturated hydrocarbons have a higher density than saturated hydrocarbons.
C
Higher density always means higher melting point.
D
Thicker oils are more solid than liquid, so they have another phase change to complete.
7

What is a characteristic of straight chained alkanes?

A
They have carbon atoms that are double-bonded to other carbon atoms.
B
They have carbons bonded in a single row from one end of the molecule to the other end of the molecule.
C
They have more than two carbons that are bonded to only one other carbon.
D
They have one or more rings of carbon atoms.
8

How does a straight-chain alkane that has five carbon atoms differ from a cycloalkane that has five carbon atoms?

A
The straight-chain alkane has two more hydrogen atoms than the cycloalkane.
B
The straight-chain alkane has only single bonds, but the cycloalkane has at least one double or triple bond.
C
The straight-chain alkane has two fewer hydrogen atoms than the cycloalkane.
D
The straight-chain alkane has at least one double or triple bond, but the cycloalkane has only single bonds.
9

Saturated hydrocarbons are major components of

A
alcohol.
B
salt crystals.
C
vegetable oil.
D
gasoline.
10

Which lists straight-chain alkanes from lowest to highest boiling point?

A
methane, nonane, butane, octane
B
decane, hexane, butane, propane
C
butane, hexane, propane, octane
D
ethane, pentane, heptane, octane

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