Author Question: Which one of the following structures represents a meso compound? A) D) B) E) ... (Read 24 times)

drink

  • Hero Member
  • *****
  • Posts: 554
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

  • Sr. Member
  • ****
  • Posts: 321
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



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Patients who have been on total parenteral nutrition for more than a few days may need to have foods gradually reintroduced to give the digestive tract time to start working again.

Did you know?

Calcitonin is a naturally occurring hormone. In women who are at least 5 years beyond menopause, it slows bone loss and increases spinal bone density.

Did you know?

Allergies play a major part in the health of children. The most prevalent childhood allergies are milk, egg, soy, wheat, peanuts, tree nuts, and seafood.

Did you know?

Despite claims by manufacturers, the supplement known as Ginkgo biloba was shown in a study of more than 3,000 participants to be ineffective in reducing development of dementia and Alzheimer’s disease in older people.

Did you know?

The average older adult in the United States takes five prescription drugs per day. Half of these drugs contain a sedative. Alcohol should therefore be avoided by most senior citizens because of the dangerous interactions between alcohol and sedatives.

For a complete list of videos, visit our video library