Which one of the following structures represents a meso compound? ...

[drink]

Which one of the following structures represents a meso compound?
  A)
   
 
  D)
   
 
  B)
   
 
  E)
   
 
  C)
   
 

Question 2

represents
   
  A)
  (2R,3R)-2,3-butanediol.
  B)
  (2S,3S)-2,3-butanediol.
  C)
  the most stable conformer of (2R,3R)-2,3-butanediol.
  D)
  the least stable conformer of (2R,3R)-2,3-butanediol.
  E)
  meso-2,3-butanediol.

Question 3

The Fischer projection that represents the same molecule as is:
   
  A)
   
 
  D)
   
 
  B)
   
 
  E)
   
 
  C)
   
 

Question 4

The Fischer projection formula for (S)-lactic acid (2-hydroxypropanoic acid) is
  A)
   
 
  D)
   
 
  B)
   
 
  E)
   
 
  C)
   
 

Question 5

The absolute configuration around the stereogenic center of the molecule below is:
 
   
   
  A)
  R
  B)
  S
  C)
  E
  D)
  Z
  E)
  trans

Question 6

What is the absolute configuration around C-2 and C-3?
   
 
   
   
  A)
  R, R
  B)
  S, S
  C)
  R, S
  D)
  S, R
  E)
  E, Z

Question 7

What is correct name for the following structure?
 
   
   
  A)
  (R,S)-2,3-dichlorobutane
  B)
  (2R,3S)-2,3-dichlorobutane
  C)
  (2S,3S)-2,3-dichlorobutane
  D)
  (2R,3R)-2,3-dichlorobutane
  E)
  none of these

Question 8

Which name describes the following structure?
 
   
  A)
  (R)-4-methyl-1-hexen-4-ol
  B)
  (S)-4-ethyl-1-penten-4-ol
  C)
  (R)-4-ethyl-1-penten-3-ol
  D)
  (S)-4-methyl-1-hexen-4-ol
  E)
  (S)-4-methyl-1-hexyn-4-ol

Question 9

Which name describes the following structure?
 
   
  A)
  (R)-3-methyl-1-penten-3-ol
  B)
  (S)-3-methyl-1-penten-3-ol
  C)
  (R)-3-ethyl-1-buten-3-ol
  D)
  (R)-3-methyl-1-pentyn-3-ol
  E)
  (S)-3-ethyl-1-buten-3-ol

Question 10

The priority order for R/S nomenclature is
  A)
  CH=CH₂ > OH > CH₃ > CH₂CH₃
  B)
  OH > CH₂CH₃ > CH=CH₂ > CH₃
  C)
  OH > CH=CH₂ > CH₂CH₃ > CH₃
  D)
  CH₃ > CH₂CH₃ > CH=CH₂ > OH
  E)
  CH₂CH₃ > CH₃ > CH=CH₂ > OH

[brittrenee]

Answer to Question 1

a

Answer to Question 2

e

Answer to Question 3

c

Answer to Question 4

e

Answer to Question 5

a

Answer to Question 6

a

Answer to Question 7

d

Answer to Question 8

d

Answer to Question 9

a

Answer to Question 10

c