Top 250+ Solved Physical Pharmaceutics 2 MCQ Questions Answer
Q. The curve for a pseudo plastic material rheogram................
a. starts at the origin
b. starts at the top
c. both of the above
d. none of the above
Q. In psedoplastic flow as shear stress increases, shear rate...............
a. Increases
b. Increases but linear
c. Increases but not linear
d. Decreases
Q. Dilatant materials are frequently called as...............
a. strain-thinning systems
b. shear-thickening systems
c. shear-thinning systems
d. strain-thinning systems
Q. The Rheogram of thixotropic material determined by...................
a. Duration through which sample is exposed to any one shear rate.
b. Rate at which shear increased or decreased.
c. Both of the above
d. None of the above
Q. ....... is the isothermal and moderately slow recovery on standing of material of which stability lost owing to shearing.
a. Thermochemistry
b. Viscosity
c. Entiotropy
d. Thixotropy
Q. ......is the alteration in the shape and the size of a body owing to applied external forces and internalforces.
a. Deformation
b. Formation
c. Conjugation
d. None of the above
Q. A wetting agent is included in the formulation of a suspension, particularly when the suspendedparticles:
a. are hydrophobic
b. are more denser than the vehicle
c. are water soluble
d. have lesser interfacial tension
Q. For a flocculated suspension, one of the following criterion is satisfied or established
a. High inter-particle repulsions
b. strong inter-particle attractions
c. weak inter-particle attractions
d. weak inter-particle repulsions
Q. In stokes’ relationship, a parameter that greatly changes the velocity of settling is:
a. density of the liquid
b. density of particle
c. radius of the particle
d. viscosity of the medium
Q. The protamine-zinc insulin suspension is prepared by a method viz.,:
a. altered pH precipitation
b. dispersion method
c. double decomposition
d. organic solvent precipitation
Q. Methyl cellulose is a polymer, which is of a type:
a. anionic
b. amphilytic
c. cationic
d. non-ionic
Q. For a flocculated suspension the degree of flocculation is observed to be one. The sedimentationvolume is also 1 (one). These values, respectively, indicate the limits:
a. lower and lower
b. lower and upper
c. upper and lower
d. upper and upper
Q. For an ideal suspension, the sedimentation volume should be:
a. equal to one
b. less than one
c. more than one
d. zero
Q. In case of suspensions, all statements below are true EXCEPT that:
a. it contains a suspending agent
b. it does not include a preservative
c. it is an injectable preparation
d. it is an oral preparation
Q. In practice, an acceptable suspension should have particles:
a. of nearly 0.1 micrometer
b. which can be readily re-dispersible after they settle
c. which should form a cake after settling
d. should not settle