Top 250+ Solved Physical Pharmaceutics 2 MCQ Questions Answer
Q. The unit of particle size used is in…………
a. Kilometer (km)
b. Centimeter (Cm)
c. Millimeter (mm)
d. Micrometer (µm)
Q. Particle size with diameter of 0.5-1.0 Micrometers (µm) is useful for……..
a. Emulsions
b. Suspensions
c. Both of the above
d. None of the above
Q. The size of a sphere is freely stated in terms of its.............
a. Area
b. Diameter
c. Radius
d. Volume
Q. …...is the diameter of a sphere having, the same observed area as the particle when viewed normal toits most stable plane.
a. The surface diameter (ds)
b. The projected diameter (dp)
c. The volume diameter (dv)
d. The Stokes diameter (dst)
Q. .... is the number of particles per unit weight.
a. Particle volume
b. Particle number
c. Particle mean
d. Particle weight
Q. …....technique is utilized for estimation of surface diameter ds.
a. Air permeability
b. Vacuum
c. Filtration
d. Weighing
Q. The ratio of the void volume to the bulk volume of the packing is called as the....................
a. Tap density
b. Bulk density
c. Followability
d. Porosity
Q. In the photochemical degradation of multisulpha preparation, the order that the reaction follows is:
a. first
b. pseudo first
c. second
d. zero
Q. The integral equation (in common notation) k = x/at (a - x) is concerned with the order:
a. first
b. pseudo first
c. second
d. zero
Q. When a series of steps are involved in a reaction, the ‘overall rate’ of a reaction depends upon therate(s) of:
a. all steps
b. all steps which follow the slowest step
c. all steps which precede the slowest step
d. the slowest step
Q. The solid state decomposition of aspirin in presence of moisture follows the order:
a. first
b. pseudofirst
c. second
d. zero
Q. The reaction rate constant (k) is 2.0 x 10-3 min.-1 for aspirin hydrolysis in 0.1 N hydrochloric acid at1mg/ml concentration. Under same conditions, if the product contains aspirin 4 mg/ml of the initial concentration, the k value in minutes-1 will be:
a. 0.5 x l0-3
b. 2.0 x 10-3
c. 4.0 x 10-3
d. 8.0 x 10-3
Q. A second order reaction follows pseudo-first order reaction, when the concentrations of:
a. two reactants are high
b. two reactants are low
c. one reactant is far higher than the other reactant.
d. two reactants are equal