Consider the molecules A and B shown. (2 points)
i. How many stereoisomers are possible?
ii. Draw each of the possible stereoisomers.
iii. Identify pairs of enantiomers and pairs of diastereomers.
4. Consider the molecules shown below. Assign the R/S configuration to each chiral center below. If you have difficulty, try building a molecule. (4 points)
5. Consider the molecules shown below. (4 points)
• Identify all chiral centers in each molecule.
• Determine whether each molecule is chiral or achiral.
• If the achiral molecules are meso, classify them as such.