Stability and interfacial phenomenon

Question 1

T/F: Physical degradation in the loss of drug molecules or a decrease in the concentration of the drug

Answer 1

false

Question 2

Different crystal or amorphous forms of the same compound are known as

Answer 2

polymorphism

Question 3

The process by which molecules from one phase adhere to the surface of a solid material in another phase is known as

Answer 3

adsorption

Question 4

One way to prevent the breakdown of drugs by the light is to store them in amber-colored bottles

Answer 4

true

Question 5

When certain drugs are passes through a polyvinyl chloride (PVC) tube, some amount of the drug is lost. This is due to

Answer 5

adsorption

Question 6

When drug molecules interact with water molecules to yield breakdown products, it is known as

Answer 6

hydrolysis

Question 7

Sodium sulfite and sodium ascorbate are examples of

Answer 7

antioxidants

Question 8

T/F: Generally, dextro forms of drugs show more pharmacological effects

Answer 8

False

Question 9

The boundary between the phases in heterogeneous systems is known as

Answer 9

interface

Question 10

If the adsorbed materials are partitioned in favor of the bulk, it is called

Answer 10

negative adsorption

Question 11

Molecules that concentrate at the interface of two different phases are known as

Answer 11

surfactants