Pharmaceutics II Course Details

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Questions and Answers

What is the course code for Pharmaceutics II?

  • PHPC 5123
  • PHPC 2113
  • PHPC 4123 (correct)
  • PHPC 6123

In which field of study is the course Pharmaceutics II likely to be found?

  • Chemistry
  • Biology
  • Engineering
  • Pharmaceutics (correct)

What is the likely level of study for a course with the code PHPC 4123?

  • Second-year undergraduate
  • First-year undergraduate
  • Fourth-year undergraduate
  • Third-year undergraduate (correct)

What is the title of the course with the code PHPC 4123?

<p>Pharmaceutics II (B)</p> Signup and view all the answers

What is the likely focus of the course Pharmaceutics II?

<p>Advanced principles of pharmaceutics (A)</p> Signup and view all the answers

What is the characteristic of a deflocculated suspension?

<p>Particles settle slowly and are easily redispersed by agitation. (A)</p> Signup and view all the answers

What type of agent is bentonite?

<p>Suspending agent (C)</p> Signup and view all the answers

What is the difference in sedimentation behavior between flocculated and deflocculated suspensions?

<p>Flocculated suspensions settle quickly, while deflocculated suspensions settle slowly. (D)</p> Signup and view all the answers

What is the result of decreasing the interfacial tension in a suspension?

<p>It allows easy penetration of the vehicle into the pores (D)</p> Signup and view all the answers

How do ionic surfactants bring about flocculation of suspended particles?

<p>By neutralizing the charge on each particle (A)</p> Signup and view all the answers

What is the role of electrolytes in a suspension?

<p>To decrease the electrical barrier between particles (C)</p> Signup and view all the answers

What is the purpose of a flocculating agent in a suspension?

<p>To increase the sedimentation rate of particles (A)</p> Signup and view all the answers

What is the term for the phenomenon where particles settle and form a compact sediment that is difficult to redisperse?

<p>Caking (B)</p> Signup and view all the answers

What type of agent is sodium CMC?

<p>Suspending agent (C)</p> Signup and view all the answers

What is the ideal suspension system in terms of flocculation?

<p>A deflocculated system with high viscosity to prevent sedimentation (D)</p> Signup and view all the answers

What is the effect of flocculation on the stability of a suspension?

<p>It increases the stability of the suspension (A)</p> Signup and view all the answers

What is the role of non-ionic surfactants in a suspension?

<p>To adsorb onto more than one particle, forming a loose flocculated structure (A)</p> Signup and view all the answers

What is the primary factor affecting the rate of sedimentation according to Stoke's equation?

<p>Diameter of the particle (B)</p> Signup and view all the answers

What is the effect of increasing the viscosity of the dispersion medium on the sedimentation behavior of a suspension?

<p>It decreases the terminal settling velocity (C)</p> Signup and view all the answers

Which of the following materials would be easiest to wet with water?

<p>Hydrophilic material (C)</p> Signup and view all the answers

What is the primary mechanism of flocculation?

<p>Natural tendency of particles towards aggregation (B)</p> Signup and view all the answers

What is the effect of increased viscosity on sedimentation velocity?

<p>Decrease in sedimentation velocity (D)</p> Signup and view all the answers

What is the primary difference between deflocculated and flocculated suspensions?

<p>State of aggregation of particles (A)</p> Signup and view all the answers

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