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

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 four identical groups.
D) An atom that is bonded to three different groups.

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

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

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

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

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

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

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