Question 1

Which molecule has a plane of symmetry?

Accepted Answer

A)   I
B)   II
C)   III
D)   More than one of these
E)   None of theseF) All of the above
G) C) and D) D

Question 2

Draw a dash-wedge structure for (1S,2S,5R)-5-methyl-2-propylcyclohexanol

Accepted Answer

The answer of Draw a dash-wedge structure for (1S,2S,5R)-5-methyl-2-propylcyclohexanol...

Question 3

The molecules shown are:

Accepted Answer

A)   constitutional isomers.
B)   enantiomers.
C)   diastereomers.
D)   identical.
E)   None of theseF) All of the above
G) B) and E)

Question 4

Of the compounds which correspond to the general name "dichlorocyclobutane",how many are optically active?

Accepted Answer

A)   0
B)   1
C)   2
D)   3
E)   4F) C) and E)
G) A) and B)

Question 5

Draw a dash-wedge structure for (1R,2S,3S)-3-bromo-2-vinylcyclohexanol

Accepted Answer

The answer of Draw a dash-wedge structure for (1R,2S,3S)-3-bromo-2-vinylcyclohexanol...

Question 6

Which structure represents (S) -2-bromobutane?

Accepted Answer

A)   I
B)   II
C)   III
D)   More than one of the above
E)   None of the aboveF) A) and B)
G) A) and C)

Question 7

For the generalized structure BrCH2CHClCH2CHClCH2Br there exists what number of stereoisomers?

Accepted Answer

A)   2
B)   3
C)   4
D)   6
E)   8F) C) and E)
G) B) and D)

Question 8

Draw a dash-wedge structure for (3R,6R)-3-bromo-6-methylcyclohex-1-ene

Accepted Answer

The answer of Draw a dash-wedge structure for (3R,6R)-3-bromo-6-methylcyclohex-1-ene...

Question 9

Which molecule is a meso compound?

Accepted Answer

A)   I
B)   II
C)   III
D)   More than one of the above
E)   None of the aboveF) All of the above
G) A) and B)

Question 10

Draw a dash-wedge structure for (2S,3R)-3-bromo-6,6-dimethyl-7-en-2-ol

Accepted Answer

The answer of Draw a dash-wedge structure for (2S,3R)-3-bromo-6,6-dimethyl-7-en-2-ol...

Question 11

A meso compound has __________ chiral center(s),and is __________ upon its mirror image.

Accepted Answer

two or mor...

Question 12

A chiral molecule is defined as one that is _____________________ on its mirror image.

Accepted Answer

The answer of A chiral molecule is defined as one...

Question 13

The compounds whose molecules are shown below would have:

Accepted Answer

A)   the same melting point.
B)   different melting points.
C)   equal but opposite optical rotations.
D)   More than one of these
E)   None of theseF) C) and D)
G) None of the above

Question 14

Which structure(s) represent(s) diastereomer(s) of I?

Accepted Answer

A)   II
B)   II and III
C)   II and IV
D)   III and V
E)   IV and VF) A) and E)
G) A) and D)

Question 15

-Which compound above (I-IV) is (2R,3R) -2,3-butanediol?

Accepted Answer

A)   I
B)   II
C)   III
D)   IV
E)   None of theseF) B) and D)
G) B) and E)

Question 16

Chiral molecules are represented by:

Accepted Answer

A)   I,II,III,IV and V
B)   I,II,III and IV
C)   I and II
D)   III and IV
E)   IV aloneF) A) and B)
G) A) and C)

Question 17

Draw a dash-wedge structure for (1S,3R)-1-ethyl-1,3-dimethylcyclopentane

Accepted Answer

The answer of Draw a dash-wedge structure for (1S,3R)-1-ethyl-1,3-dimethylcyclopentane...

Question 18

The molecules below are:

Accepted Answer

A)   constitutional isomers.
B)   enantiomers.
C)   diastereomers.
D)   identical.
E)   None of theseF) A) and D)
G) A) and E)

Question 19

The molecules below are:

Accepted Answer

A)   constitutional isomers.
B)   enantiomers.
C)   diastereomers.
D)   identical.
E)   None of theseF) A) and B)
G) A) and C) C

Question 20

The molecules below are:

Accepted Answer

A)   constitutional isomers.
B)   enantiomers.
C)   diastereomers.
D)   identical.
E)   None of theseF) A) and C)
G) B) and D)

Exam 5: Stereochemistry: Chiral Molecules

Which molecule has a plane of symmetry?

Correct AnswerverifiedD

Draw a dash-wedge structure for (1S,2S,5R)-5-methyl-2-propylcyclohexanol

Correct AnswerverifiedShow Answer

The molecules shown are:

Correct AnswerverifiedShow Answer

Of the compounds which correspond to the general name "dichlorocyclobutane",how many are optically active?

Correct AnswerverifiedShow Answer

Draw a dash-wedge structure for (1R,2S,3S)-3-bromo-2-vinylcyclohexanol

Correct AnswerverifiedShow Answer

Which structure represents (S) -2-bromobutane?

Correct AnswerverifiedShow Answer

For the generalized structure BrCH2CHClCH2CHClCH2Br there exists what number of stereoisomers?

Correct AnswerverifiedShow Answer

Draw a dash-wedge structure for (3R,6R)-3-bromo-6-methylcyclohex-1-ene

Correct AnswerverifiedShow Answer

Which molecule is a meso compound?

Correct AnswerverifiedShow Answer

Draw a dash-wedge structure for (2S,3R)-3-bromo-6,6-dimethyl-7-en-2-ol

Correct AnswerverifiedShow Answer

A meso compound has __________ chiral center(s),and is __________ upon its mirror image.

Correct Answerverifiedtwo or mor...View AnswerShow Answer

A chiral molecule is defined as one that is _____________________ on its mirror image.

Correct AnswerverifiedShow Answer

The compounds whose molecules are shown below would have:

Correct AnswerverifiedShow Answer

Which structure(s) represent(s) diastereomer(s) of I?

Correct AnswerverifiedShow Answer

-Which compound above (I-IV) is (2R,3R) -2,3-butanediol?

Correct AnswerverifiedShow Answer

Chiral molecules are represented by:

Correct AnswerverifiedShow Answer

Draw a dash-wedge structure for (1S,3R)-1-ethyl-1,3-dimethylcyclopentane

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The molecules below are:

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The molecules below are:

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The molecules below are:

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For the generalized structure BrCH₂CHClCH₂CHClCH₂Br there exists what number of stereoisomers?

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A meso compound has chiral center(s),and is upon its mirror image.

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two or mor...
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