Chemistry Concepts and Applications

Chapter 18: Organic Chemistry

Chapter Test Practice

1
Hydrocarbons in which all the carbon atoms are connected by single bonds are __________.
A)alkenes
B)alkynes
C)saturated hydrocarbons
D)unsaturated hydrocarbons
2
Alkanes with 20 or more carbon atoms are __________ at room temperature and pressure.
A)fluids
B)gases
C)liquids
D)solids
3
Petroleum is separated into different mixtures of hydrocarbons, such as gasoline and kerosene, by __________.
A)chromatography
B)electrolysis
C)fractional distillation
D)osmosis
4
The structural formula -C=C- indicates a __________ bond between the carbon atoms.
A)single covalent
B)single ionic
C)double covalent
D)double ionic
5
Hydrocarbons with __________ carbon atoms will be collected at the highest point on a fractionating tower.
A)4
B)8
C)12
D)20
6
A functional group is the part of a molecule having a specific arrangement of atoms that is largely responsible for the __________ of the parent molecule.
A)chemical behavior
B)density
C)mass
D)volume
7
The general formula for an amine is __________.
A)RNH2
B)ROR'
C)ROH
D)RX
8
Which functional groups often produce strong, unpleasant odors

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A)alcohols
B)esters
C)ketones
D)carboxylic acids
9
Esters feature __________.

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A)a single bond between carbon and oxygen.
B)a double bond between carbon and oxygen.
C)both a single carbon-oxygen and a double carbon-oxygen bond.
D)a triple carbon-oxygen bond.
10
Ethers are __________ and __________.

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A)soluble in water; volatile
B)insoluble in water; volatile
C)soluble in water; not volatile
D)insoluble in water; not volatile
11
__________ is a natural process that produces ethanol.
A)fermentation
B)putrification
C)cracking
D)fractional distillation
12
Cadaverine, the compound that gives decaying bodies their distinctive smell, contains the __________ group.
A)hydroxyl
B)carbonyl
C)carboxyl
D)amino
13
What is the monomer in the natural polymer known as cellulose?
A)glucose
B)ribose
C)sucrose
D)methanol
14
__________ plastics harden permanently when molded.
A)monomer
B)polymer
C)thermoplastic
D)thermosetting
15
Which is NOT a natural polymer?
A)chitin
B)nylon
C)silk
D)wool
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