LE2 Discussion

Identify a molecule that is achiral

• 2-chlorobutane

• 1,2-dichloropropane

• 3-bromopentane

• 3-bromo-1-butene

Which of the following molecules has an R configuration?

• 
• 

Which of the following molecules has an S configuration?

• 
• 
• none of these

What are the R/S configurations at the stereocenters of the following compounds?

• (i) R: (ii) R

• (i) R: (ii) S

• (i) S: (ii) R

• (i) S: (ii) S

Which of the following pairs of stereoisomers are related as enantiomers?

• A and B; C and D

• A and C; B and D

• A and D; B and C

• C and D; B and C

How many stereocenters are present in the following carbohydrate?

• 1

• 2

• 3

• 4

How are the following two carbohydrates related to each other?

• enantiomers

• diastereomers

• consitutional isomers

• functional isomers

Answer explanation

What is the correct order of boiling points of the following compounds?

• A > B > C

• C > B > A

• B > A > C

• A > C > B

Which of the following compounds is the most soluble in water?

• 2-butanone

• 1-hydroxy-2-butanone

• butanal

• 2,3-dihydroxybutanal

Which of the following is an oxidizing agent?

• NADH

• H2

• O2

• none of these