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

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

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

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

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

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

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

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

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