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The compound 4-methyl-2-hexene is not a chiral molecule.

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False

The Fischer projection to the right represents the compound to the left. The Fischer projection to the right represents the compound to the left.

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False

Enantiomers are stereoisomers that are


A) mirror images of each other that are identical.
B) not mirror images of each other.
C) nonsuperimposable mirror images of each other.
D) cis-trans isomers of each other.

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Consider the stereoisomers (A-E) drawn below: Consider the stereoisomers (A-E) drawn below: Which structure(s) is/are diastereomers of structure E? A) structure A B) structure B C) structure C D) structure D E) structures A and B Which structure(s) is/are diastereomers of structure E?


A) structure A
B) structure B
C) structure C
D) structure D
E) structures A and B

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How many chirality centers does the following molecule contain? How many chirality centers does the following molecule contain? A) 1 B) 2 C) 3 D) 8


A) 1
B) 2
C) 3
D) 8

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B

Only chiral molecules have a mirror image.

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Which statement is true?


A) A carbon that is part of a multiple is always a chirality center.
B) The carbon atom in a CH2 group is a chirality center only when it is part of a ring.
C) Stereoisomers always have the same functional groups.
D) Diastereomers are mirror image isomers that are not superimposable.

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The cis and trans isomers of an alkene represent one example of stereoisomers.

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cis-2-butene and trans-2-butene are enantiomers.

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In a Fischer projection,


A) horizontal lines represent bonds that come out of the plane on wedges, and the vertical lines represent bonds that go back on dashed lines.
B) vertical lines represent bonds that come out of the plane on wedges, and the horizontal lines represent bonds that go back on dashed lines.
C) horizontal lines represent bonds that are in the plane of the paper, and the vertical lines represent bonds that go back on dashed lines.
D) vertical lines represent bonds that are in the plane of the paper, and the horizontal lines represent bonds that go back on dashed lines.

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The major product of the dehydration of the alcohol below has one chirality center. The major product of the dehydration of the alcohol below has one chirality center.

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Which structure represents the three-dimensional structure of the Fischer projection shown? Which structure represents the three-dimensional structure of the Fischer projection shown? A) B) C) D)


A) Which structure represents the three-dimensional structure of the Fischer projection shown? A) B) C) D)
B) Which structure represents the three-dimensional structure of the Fischer projection shown? A) B) C) D)
C) Which structure represents the three-dimensional structure of the Fischer projection shown? A) B) C) D)
D) Which structure represents the three-dimensional structure of the Fischer projection shown? A) B) C) D)

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Ampicillin (structure shown)is an antibiotic that has been used extensively to treat bacterial infections since 1961. There are _____ chirality centers in ampicillin. Ampicillin (structure shown)is an antibiotic that has been used extensively to treat bacterial infections since 1961. There are _____ chirality centers in ampicillin.

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cis-2-Hexene and trans-3-hexene are _____ isomers.

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A compound with two chirality centers has a maximum of _____ possible stereoisomers.

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A chiral molecule has at least one carbon atom that has four different substituents bonded to it.

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A compound with three chirality centers has a maximum of _____ possible stereoisomers.

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A sample containing an equal amount of two enantiomers is called a/an _____ mixture.

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Enantiomers may have different odors because they bind with chiral receptors and each enantiomer fits the chiral receptors in a different way.

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All molecules that have carbons with a tetrahedral shape are chiral.

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