Chiral Center and Enantiomers Quiz

What is the definition of a chiral center?

• An atom in a molecule that is bonded to four different groups or atoms.

• An atom in a molecule that is bonded to three different groups or atoms.

• An atom in a molecule that is bonded to two different groups or atoms.

• An atom in a molecule that is bonded to five different groups or atoms.

How do you determine the number of chiral centers in a molecule?

• Count the number of carbon atoms in the molecule.

• Look for carbon atoms bonded to three different groups.

• Identify the carbon atoms bonded to four different groups.

• Determine the number of hydrogen atoms in the molecule.

What is the difference between R and S configuration?

• The difference between R and S configuration lies in the color of the compounds.

• The difference between R and S configuration lies in the size of the molecules.

• The difference between R and S configuration lies in the number of chiral centers.

• The difference between R and S configuration lies in the direction of decreasing priority of groups around a chiral center.

What are enantiomers?

• Pairs of molecules that are mirror images of each other but cannot be superimposed onto each other.

• Pairs of molecules that have the same physical properties but different chemical properties.

• Pairs of molecules that have the same molecular formula but different structural arrangements.

• Pairs of molecules that have the same structure but different chemical properties.

What are diastereomers?

• Diastereomers are stereoisomers that are mirror images of each other.

• Diastereomers have the same physical and chemical properties.

• Diastereomers are a type of enantiomers.

• Diastereomers are stereoisomers that are not mirror images of each other and have different physical and chemical properties.

How many chiral centers are present in a molecule with the following structure: CH3CH(OH)CH2CH3?

• 0

• 3

• 2

• 1

What is the R configuration for a chiral center with the following priority groups: Cl, Br, CH3, H?

• R

• X

• M

• S

Are enantiomers superimposable?

• Only in certain conditions

• Yes

• No

• Sometimes

Are diastereomers mirror images of each other?

• Sometimes

• Yes

• Only in certain cases

• No