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Organic Chemistry — Test Answers

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How is addition polymerization different from condensation polymerization?

A
During addition polymerization, the chain grows in one direction only; during condensation polymerization, the chain can grow in multiple directions.
B
During addition polymerization, all the atoms in the monomer units are retained in the polymer; condensation polymerization results in the loss of a small molecule, such as water.
C
During condensation polymerization, all the atoms in the monomer units are retained in the polymer; addition polymerization results in the loss of a small molecule, such as water.
D
During condensation polymerization, the chain grows in one direction only; during addition polymerization, the chain can grow in multiple directions.
2
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Which activity most likely involves the direct use of saturated hydrocarbons?

A
bending steel by hand
B
burning natural gas
C
dissolving salt in water
D
carving stone with hammer and chisel
3

Trevor watches as a freight train passes. He counts eight identical black railroad cars, then a red car, followed by several more black cars. Which type of organic compound does the train most closely model?

A
a carboxylic acid
B
an alkyl halide
C
an aldehyde
D
an ether
4

Which compound can be used to preserve biological specimens?

A
Image with description A central C is double bonded to an O, and single bonded to 2 H.
B
Image with description C H 3 single bonded to C, which is double bonded above right to O, and below right to C H 2, which is bonded to C H 3.
C
Image with description A chain, reading from left: C H 3 bonded to C, bonded to O, bonded to C H 2, bonded to C H2, bonded to C H 3. The single C near the beginning of the chain is double bonded to O.
D
Image with description A central C is double bonded to an O above, and single bonded to C H 3 below left and O H below right.
5

What would a substance that could undergo condensation polymerization most likely have?

A
two double bonds
B
two aldehyde functional groups
C
a triple bond
D
two alcohol functional groups
6

What are geometric isomers?

A
compounds that have the same types of atoms arranged in different orders
B
compounds that have the same atoms arranged in the same order, and have the same three-dimensional orientations
C
compounds that have the same atoms arranged in the same order, but with different three-dimensional orientations
D
compounds that have the same number of carbon atoms arranged in different orders
7

What is the general formula for a secondary amine?

A
RNH sub 2
B
cap h sub 2 NRNH sub 2
C
RN sub 2 cap h
D
cap r sub 2 NH
8

What is the name of the hydrocarbon CH sub 3 open paren CH sub 2 close paren sub 6 CH sub 3 ?

A
decane
B
butane
C
propane
D
octane
9

Which reaction should be used to convert propene into an alkyl halide?

A
condensation
B
addition
C
elimination
D
substitution
11

Which molecule has a structure that is most like aspirin?

A
butane
B
benzene
C
octyne
D
propene
12

Which is a characteristic of condensation polymerization?

A
The polymer contains all the atoms in the monomer units.
B
The reaction rarely produces a product.
C
Each monomer has more than one functional group.
D
Monomers are generally alkenes.
13

Which is composed of alkenes?

A
propane gas
B
welding torch fuel
C
polystyrene cups
D
degreaser containing hexane
14

Which class of organic compound is commonly used in perfumes?

A
alcohol
B
amine
C
ether
D
ester
15

What is a disadvantage of using a space-filling model to show a chemical compound?

A
Space-filling models do not identify the number and type of bonds.
B
Space-filling models show information about composition but not structure.
C
Space-filling models do not show all atoms in the molecule.
D
Space-filling models provide a two-dimensional view of the molecule.
16

What is the name of this hydrocarbon?

A
octane
B
hexane
C
pentane
D
heptane
17

Which property differentiates this alkane from other classes of alkanes?

A
the number of carbon atoms
B
the types of bonds
C
the shape
D
the number of hydrogen atoms
18

What is the chemical formula for acetic acid?

A
cap c sub 2 cap h sub 4 cap o sub 2
B
cap c sub 2 OH
C
CHO
D
cap c sub 2 cap o sub 2 cap h
19

What is the name of the functional group that is attached to this hydrocarbon?

A
alcohol
B
alkyl halide
C
carbonyl
D
ketone
20

Estradiol is best described as?

A
an aromatic
B
an alkene
C
an alkane
D
an alkyne
21

What is the product that is formed in this reaction?

A
an alkyl halide
B
a monomer
C
a polymer
D
a carboxylic acid

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