Chemistry: Matter and Change

Chapter 22: Substituted Hydrocarbons and Their Reactions

Chapter Test Practice

1
Compare chloromethane and methane. What are the molecular masses of the two substances?

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A)chloromethane 50.488, methane 16.043
B)chloromethane 35.453, methane 1.008
C)chloromethane 35.453, methane 16.043
D)chloromethane 50.488, methane 12.011
2
In the halogenation reaction shown, ethane and chlorine gas yield chloroethane and hydrogen chloride. How do the properties of chloroethane compare to those of ethane?

C2H6 + Cl2 yields C2H5 Cl + HCl
A)Chloroethane is denser and has a lower boiling point
B)Chloroethane is denser and has a higher boiling point
C)Chloroethane is less dense and has a lower boiling point.
D)Chloroethane is less dense and has a higher boiling point.
3
If the molecular formula for cyclohexane is C6H12, what is the formula for cyclohexanol?

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A)C6OH
B)C6H12OH
C)C6H10OH
D)C6H11OH
4
Because ethers have no hydrogen atoms bonded to the oxygen atom, they __________.

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A)are non-reactive
B)cannot form hydrogen bonds
C)have high boiling points
D)are more soluble in water than alcohols
5
Which of the following is not a property of the ketones?

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A)form hydrogen bonds with each other
B)somewhat soluble in water
C)solvent for waxes
D)polar molecule
6
An ester is any organic compound with a carboxyl group in which the hydrogen of the ______ group has been replaced by a(n) _________ group.

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A)carbonyl; alkyl
B)hydroxyl; ketone
C)hydroxyl; alkyl
D)carbonyl; ketone
7
In an addition reaction, the addition reactant bonds to what type of atom?

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A)double- or triple-bonded carbon atoms
B)single-bonded carbon atoms
C)a hydroxide group
D)a halide group
8
How many hydrogen atoms are required to convert an alkyne into an alkane?
A)1
B)2
C)3
D)4
9
A polymerization reaction in which at least two functional groups combine with the loss of a small by-product, such as water, is called a(n) __________.

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A)addition polymerization
B)addition reaction
C)replacement reaction
D)condensation polymerization
10
In a polymer, what does the letter n indicate?

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A)It represents the number of structural units in the polymer chain.
B)It represents the number of monomers that go into the formation of the polymer.
C)It represents the molecular mass of the polymer.
D)It represents the length of the molecule.
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