A) It has a linear structure.
B) It has no stereocenters.
C) It has no optical rotation.
D) It cannot be superimposed on its mirror image.

A) An atom that is bonded to four different groups.
B) An atom that is bonded to two groups.
C) An atom that is bonded to three different groups.
D) An atom that is bonded to four identical groups.

A) 1
B) 2
C) 3
D) 4

A) A mixture of structurally different molecules.
B) A 50:50 mixture of two enantiomers.
C) A mixture of meso compounds.
D) A mixture of diastereomers.

A) They are easier to synthesize.
B) They can have different biological effects.
C) They have the same properties in the body.
D) They have no medicinal value.

A) By analyzing the color of the substance.
B) By counting the number of carbons in a molecule.
C) By measuring optical activity with a polarimeter.
D) By checking the molecular weight of a compound.

A) Visible light.
B) Infrared light.
C) Plane-polarized light.
D) Ultraviolet light.

A) A compound that rotates the plane of polarized light.
B) A compound that absorbs light.
C) A compound with no stereocenters.
D) A compound with high molecular weight.

A) Racemic mixtures have higher melting points than pure enantiomers.
B) Enantiomers have identical physical properties except for optical activity.
C) Chiral molecules are always more soluble than achiral molecules.
D) Diastereomers have identical boiling points.