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Practice Test Answers

9 verified answers
1
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Which states the difference between an alcohol and an ether?

A
In an ether, a carbon atom is single bonded to a hydroxide group open paren OH raised to the negative power close paren ; in an alcohol, an oxygen atom is single bonded to two carbon atoms.
B
In an alcohol, a carbon atom is double bonded to an oxygen atom; in an ether, a carbon atom is triple bonded to another carbon atom.
C
In an alcohol, a carbon atom is single bonded to a hydroxide group open paren OH raised to the negative power close paren ; in an ether, an oxygen atom is single bonded to two carbon atoms.
D
In an ether, a carbon atom is double bonded to an oxygen atom; in an alcohol, a carbon atom is triple bonded to another carbon atom.
2
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What is a characteristic of branched chained alkanes?

A
They have one or more rings of 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 carbon atoms that are double-bonded to other carbon atoms.
3

Which is a characteristic of a typical carbon atom?

A
Carbon has a high melting point.
B
Carbon can form single, double, and triple bonds.
C
Carbon dissolves easily in water.
D
Carbon is one of the least common elements in the universe.
4

Which term describes this reaction? CH sub 3 Br aq plus OH raised to the negative aq power rightarrow CH sub 3 OH aq plus Br raised to the negative aq power

A
substitution
B
elimination
C
condensation
D
addition
6

Which molecule is an aromatic hydrocarbon?

A
Image with description Two hexagon rings with carbons at each corner have alternating double bonds and share one side. H is single bonded to all the C's except the ones on the shared side.
B
Image with description Two carbons are triple bonded to each other; each has a single bond to the outside.
C
Image with description A skeletal model has line segments that slant up, down, up, and up again in a triple bond.
D
Image with description Two central carbons are double bonded to each other; the pair is single bonded to C H 3 above left and right, and to H below left and right.
7

Which table correctly describes the uses of aldehydes?

A
table A
B
table B
C
table C
D
table D
8

Which of these is a trans - isomer of the above hydrocarbon?

A
Image with description A skeletal model of a 5 carbon chain with a double bond between the first and second carbons.
B
Image with description A skeletal model with a 6 carbon chain, with a double bond between the second and third carbon.
C
Image with description A skeletal model with line segments that slant up, run flat in a double bond, slant down, run flat, and slant down again.
D
Image with description A skeletal model with line segments that slant up, fun flat in a double bond, slant up, and run flat.
9

What is happening in this diagram?

A
Monomers are forming large polymers.
B
Polymers are forming large monomers.
C
Polymers are breaking down into monomers.
D
Monomers are breaking down into polymers.
10

What is the name of this alkane?

A
1-methyl,3-ethylnonane
B
1-methyl,5-ethylisohexane
C
1-ethyl,5-methylcyclohexane
D
1-ethyl,3-methylcyclohexane

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