Question 1

I and II are:

Accepted Answer

A) constitutional isomers. 
B) enantiomers. 
C) non-superposable mirror images. 
D) diastereomers. 
E) not isomeric. 
A) constitutional isomers. 
B) enantiomers. 
C) non-superposable mirror images. 
D) diastereomers. 
E) not isomeric.

Question 2

Which molecule has a plane of symmetry?

Accepted Answer

A) I 
B) II 
C) III 
D) More than one of these choices. 
E) None of these choices. 
A) I 
B) II 
C) III 
D) More than one of these choices. 
E) None of these choices.

Question 3

I and II are:

Accepted Answer

A) constitutional isomers. 
B) enantiomers. 
C) identical. 
D) diastereomers. 
E) not isomeric. 
A) constitutional isomers. 
B) enantiomers. 
C) identical. 
D) diastereomers. 
E) not isomeric.

Question 4

Hexane and 3-methylpentane are examples of:

Accepted Answer

A) enantiomers. 
B) stereoisomers. 
C) diastereomers. 
D) constitutional isomers. 
E) None of these choices. 
A) enantiomers. 
B) stereoisomers. 
C) diastereomers. 
D) constitutional isomers. 
E) None of these choices.

Question 5

I and II are:

Accepted Answer

A) constitutional isomers. 
B) enantiomers. 
C) identical. 
D) diastereomers. 
E) not isomeric. 
A) constitutional isomers. 
B) enantiomers. 
C) identical. 
D) diastereomers. 
E) not isomeric.

Question 6

Draw a Fischer projection formula of (R)-6-bromo-1-hexen-3-ol.

Accepted Answer

The answer of Draw a Fischer projection formula of (R)-6-bromo-1-hexen-3-ol....

Question 7

I and II are:

Accepted Answer

A) constitutional isomers. 
B) enantiomers. 
C) identical. 
D) diastereomers. 
E) not isomeric. 
A) constitutional isomers. 
B) enantiomers. 
C) identical. 
D) diastereomers. 
E) not isomeric.

Question 8

Which structure represents (S)-1-chloro-1-fluoroethane?

Accepted Answer

A) I 
B) II 
C) III 
D) More than one of these choices. 
E) None of these choices. 
A) I 
B) II 
C) III 
D) More than one of these choices. 
E) None of these choices.

Question 9

What is the complete IUPAC name of the following substance? (Remember to give stereochemical details,as relevant.)

Accepted Answer

(S)-1-ethy

Question 10

Enantiomers have ___ physical properties.

Accepted Answer

The answer of Enantiomers have ___ physical properties....

Question 11

Enantiomers are stereoisomers whose molecules are ___.

Accepted Answer

nonsuperpo

Question 12

How many optically active compounds are represented in the following compound?

Accepted Answer

A) 0 
B) 1 
C) 2 
D) 3 
E) 4 
A) 0 
B) 1 
C) 2 
D) 3 
E) 4

Question 13

Which statement is not true for a meso compound?

Accepted Answer

A) The specific rotation is 0. 
B) There are one or more planes of symmetry. 
C) A single molecule is identical to its mirror image. 
D) More than one stereogenic center must be present. 
E) The stereochemical labels,(R)and (S),must be identical for each stereogenic center. 
A) The specific rotation is 0. 
B) There are one or more planes of symmetry. 
C) A single molecule is identical to its mirror image. 
D) More than one stereogenic center must be present. 
E) The stereochemical labels,(R)and (S),must be identical for each stereogenic center.

Question 14

Which of the following represent (R)-2-butanol?

Accepted Answer

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

Question 15

The two compounds shown below are:

Accepted Answer

A) identical. 
B) enantiomers. 
C) diastereomers. 
D) conformational isomers. 
E) meso forms. 
A) identical. 
B) enantiomers. 
C) diastereomers. 
D) conformational isomers. 
E) meso forms.

Question 16

Which reaction must take place with retention of configuration at the stereogenic center?

Accepted Answer

A)    
B)    
C)    
D) More than one of these choices. 
E) None of these choices. 
A)    
B)    
C)    
D) More than one of these choices. 
E) None of these choices.

Question 17

Which molecule is achiral?

Accepted Answer

A) I 
B) II 
C) III 
D) More than one of these choices. 
E) None of these choices. 
A) I 
B) II 
C) III 
D) More than one of these choices. 
E) None of these choices.

Question 18

I and II are:

Accepted Answer

A) constitutional isomers. 
B) enantiomers. 
C) identical. 
D) diastereomers. 
E) not isomeric. 
A) constitutional isomers. 
B) enantiomers. 
C) identical. 
D) diastereomers. 
E) not isomeric.

Question 19

Draw a dash-wedge structure for (R)-5-methylhept-2-yne

Accepted Answer

The answer of Draw a dash-wedge structure for (R)-5-methylhept-2-yne...

Question 20

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

Exam 5: Stereochemistry

I and II are:

Which molecule has a plane of symmetry?

I and II are:

Hexane and 3-methylpentane are examples of:

I and II are:

Draw a Fischer projection formula of (R)-6-bromo-1-hexen-3-ol.

I and II are:

Which structure represents (S)-1-chloro-1-fluoroethane?

What is the complete IUPAC name of the following substance? (Remember to give stereochemical details,as relevant.)

Enantiomers have ___ physical properties.

Enantiomers are stereoisomers whose molecules are ___.

How many optically active compounds are represented in the following compound?

Which statement is not true for a meso compound?

Which of the following represent (R)-2-butanol?

The two compounds shown below are:

Which reaction must take place with retention of configuration at the stereogenic center?

Which molecule is achiral?

I and II are:

Draw a dash-wedge structure for (R)-5-methylhept-2-yne

The compounds whose molecules are shown below would have:

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