Chemistry: Matter and Change

Chapter 22: Substituted Hydrocarbons and Their Reactions

Standardized Test Practice

1
When chlorine is added to an alkane, what name is used to identify that chlorine is present in the molecule?
A)chlorine
B)chloride
C)chloro
D)Chlorine is never named in organic molecules.
2
In general, what can you conclude about the boiling points and densities of alkyl halides when compared to the corresponding unsubstituted alkanes?
A)The boiling point of the alkyl halide is lower, and the density of the alkyl halide is lower.
B)The boiling point of the alkyl halide is lower, and the density of the alkyl halide is higher.
C)The boiling point of the alkyl halide is higher, and the density of the alkyl halide is lower.
D)The boiling point of the alkyl halide is higher, and the density of the alkyl halide is higher.
3
In the aryl halide shown, what have the bromine and iodine atoms replaced?

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A)three carbon atoms
B)two carbon atoms and a hydrogen atom
C)two hydrogen atoms and a carbon atom
D)three hydrogen atoms
4
The functional group for an alcohol is ________________.
A)-OH
B)-Cl
C)-NH2
D)-COOH
5
An organic compound that contains an oxygen atom bonded to two carbon atoms is a(n) ______________.
A)alkane
B)alcohol
C)ether
D)carboxylic acid
6
If the molecular formula for cyclohexane is C6H12, what is the formula for cyclohexamine?

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A)C6H11NH2
B)C6H12NH2
C)C6H10NH
D)C6NH2
7
The carbonyl group is a(n) _______________.
A)carbon single bonded to an oxygen
B)carbon double bonded to an oxygen
C)carbon triple bonded to an oxygen
D)oxygen single bonded to another oxygen
8
An organic compound that contains a carboxyl group with the hydrogen replaced with an alkyl group is known as a(n) _______________.
A)ether
B)ester
C)aldehyde
D)carboxylic acid
9
What is the molar mass of methanal (also known as formaldehyde)?

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A)28.010 g/mol
B)26.038 g/mol
C)29.018 g/mol
D)30.026 g/mol
10
The formation of an alkane from an alkene is known as a(n) ____________ reaction.
A)addition
B)elimination
C)condensation
D)halogenation
11
What is the waste product formed when cyclopentene reacts with hydrogen bromide to form bromocyclopentane?

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A)H2
B)H2O
C)none
D)Br
12
The conversion of methane to methanol is what type of reaction?

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A)oxidation
B)reduction
C)addition
D)elimination
13
A polymerization reaction in which all atoms present in the monomers are retained in the polymer product is called a(n) ________.

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A)addition polymerization
B)addition reaction
C)replacement reaction
D)condensation polymerization
14
Which of the following is not a property of polyethylene?
A)waxy texture
B)soluble in water
C)non-reactive
D)good insulator
15
Why can thermosetting polymers not be remelted after cooling?
A)Their melting temperature is too high.
B)They become combustible.
C)They lose their plasticity at high temperatures.
D)Upon their first cooling they become, in essence, a single molecule.
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