PHA 317 Theoretical Exam Questions with Correct Answers Latest Update 2025/2026
A statement such as "not more than 110.0 percent" in the official compendia of the U.S.
Pharmacopeia and National Formulary may mean 110.1 or 110.2 percent.
a. True
b. False - Answers a. True
The closeness of a measured value to the correct value is called:
a. Sensitivity
b. Precision
c. Accuracy
d. Selectivity
e. Specificity - Answers c. Accuracy
In a set of data samples, the data that occurs the most is called:
a. Average
b. Mode
c. Median
d. Mean
e. Standard deviation - Answers b. Mode
Force per unit area is called:
a. Work
b. Energy
c. Displacement
d. Pressure
e. Power - Answers d. Pressure
The dipole moments of phenacetin, sulfanilamide, and testosterone are 5.67, 5.37, and
4.17. Which one do you expect to be most soluble in water?
,a. Phenacetin
b. Sulfanilamide
c. Testosterone - Answers a. Phenacetin
Hydrogen bonds have characteristics of:
a. Ionic force only
b. Both - ionic and dipolar force
c. Dipolar force only - Answers b. Both-ionic and dipolar force
The critical temperature and pressure for CO2 gas are 31o
C and 74.9 atm, respectively. Can
you liquefy CO2 stored at 100o
C by applying pressure only?
a. No
b. Yes - Answers a. No
Which type of solids will dissolve at a greater rate?
a. Crystalline
b. Amorphous - Answers b. Amorphous
A thermodynamic process, where the heat transfer is not zero, is called:
a. Enthalpy driven process
b. Isothermal process
c. Adiabatic process
d. Entropy driven process - Answers b. Isothermal process
Sodium chloride and methane are
a. electrovalent and electrovalent compound, respectively
b. (b) covalent and electrovalent compound, respectively
c. covalent and covalent compound, respectively
, d. electrovalent and covalent compound, respectively - Answers d. Electrovalent and covalent
comopound, respectively
The forces that bind molecules include:
(i) repulsive and attractive forces
(ii) van der Waals forces
(iii) ion-dipole and ion-induced dipole forces
(iv) hydrogen bonds
a. All of the above
b. None of the above
c. Only (ii), (iii), and (iv) of the above.
d. Only (i), (iii), and (iv) of the above. - Answers a. All of the above
Energy of a radiation can be calculated by
a. dividing product of velocity of light and Planks constant by frequency of the
radiation
b. multiplying product of velocity of light and planks constant by wavelength of the
radiation
c. adding product of velocity of light and planks constant to wavelength of the
radiation
d. dividing product of velocity of light and planks constant by wavelength of the
radiation - Answers d. Dividing product of velocity of light and planks constant by wavelength of
the
radiation
Aqueous solubility of iodine in presence of KI is due to
a. covalent interaction
b. interaction between ion-dipole and ion-induced dipole
c. electrovalent interaction
A statement such as "not more than 110.0 percent" in the official compendia of the U.S.
Pharmacopeia and National Formulary may mean 110.1 or 110.2 percent.
a. True
b. False - Answers a. True
The closeness of a measured value to the correct value is called:
a. Sensitivity
b. Precision
c. Accuracy
d. Selectivity
e. Specificity - Answers c. Accuracy
In a set of data samples, the data that occurs the most is called:
a. Average
b. Mode
c. Median
d. Mean
e. Standard deviation - Answers b. Mode
Force per unit area is called:
a. Work
b. Energy
c. Displacement
d. Pressure
e. Power - Answers d. Pressure
The dipole moments of phenacetin, sulfanilamide, and testosterone are 5.67, 5.37, and
4.17. Which one do you expect to be most soluble in water?
,a. Phenacetin
b. Sulfanilamide
c. Testosterone - Answers a. Phenacetin
Hydrogen bonds have characteristics of:
a. Ionic force only
b. Both - ionic and dipolar force
c. Dipolar force only - Answers b. Both-ionic and dipolar force
The critical temperature and pressure for CO2 gas are 31o
C and 74.9 atm, respectively. Can
you liquefy CO2 stored at 100o
C by applying pressure only?
a. No
b. Yes - Answers a. No
Which type of solids will dissolve at a greater rate?
a. Crystalline
b. Amorphous - Answers b. Amorphous
A thermodynamic process, where the heat transfer is not zero, is called:
a. Enthalpy driven process
b. Isothermal process
c. Adiabatic process
d. Entropy driven process - Answers b. Isothermal process
Sodium chloride and methane are
a. electrovalent and electrovalent compound, respectively
b. (b) covalent and electrovalent compound, respectively
c. covalent and covalent compound, respectively
, d. electrovalent and covalent compound, respectively - Answers d. Electrovalent and covalent
comopound, respectively
The forces that bind molecules include:
(i) repulsive and attractive forces
(ii) van der Waals forces
(iii) ion-dipole and ion-induced dipole forces
(iv) hydrogen bonds
a. All of the above
b. None of the above
c. Only (ii), (iii), and (iv) of the above.
d. Only (i), (iii), and (iv) of the above. - Answers a. All of the above
Energy of a radiation can be calculated by
a. dividing product of velocity of light and Planks constant by frequency of the
radiation
b. multiplying product of velocity of light and planks constant by wavelength of the
radiation
c. adding product of velocity of light and planks constant to wavelength of the
radiation
d. dividing product of velocity of light and planks constant by wavelength of the
radiation - Answers d. Dividing product of velocity of light and planks constant by wavelength of
the
radiation
Aqueous solubility of iodine in presence of KI is due to
a. covalent interaction
b. interaction between ion-dipole and ion-induced dipole
c. electrovalent interaction
