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

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

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

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

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

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

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

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

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