Max. Marks: 80 Marks
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Physical Pharmaceutics (Revised Scheme - 2)
Q.P. CODE: 1956
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Your answers should be specific to the questions askedDraw neat, labeled diagrams wherever necessary
LONG ESSAYS (Answer any Two)
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2 x 10 = 20 Marks
1.
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What is Nernst distribution law? What are its limitations? Derive expression applicable whensolute undergoes association in one of the solvent.
2.
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Discuss the various properties of colloids in detail.3.
List-out the methods used to study the particle size distribution. Describe Anderson pipette
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method for analyzing the particle size.SHORT ESSAYS (Answer any Eight)
8 x 5 = 40 Marks
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4.
Explain the electrical properties at the interface.
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5.Write the different properties of inclusion complexes with suitable examples.
6.
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Define the term "conjugated solution". Explain phenol water system.
7.
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What is optical activity? Add a note on determination of optical activity.8.
What are Buffers? Derive an equation for weak acids and its salts.
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9.
Explain the factors influencing settling.
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10.Deduce an equation for determining the specific reaction rate constant of a first order
reaction.
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11.
How do you identify emulsion type?
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12.Give the principle and procedure involved in capillary viscometer.
13.
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Describe dissolution apparatus with a neat labeled diagram.
SHORT ANSWERS
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10 x 2 = 20 Marks14.
What is Bancroft's rule? Give its applications.
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15.
Define specific surface area of powder. What is its significance?
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16.Define order and molecularity.
17.
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Contact angle
18.
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What is zeta potential? How does it differ from Nernst potential?19.
Protective colloid with examples
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20.
Dipole moment
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21.What are isotonic solutions? Give example.
22.
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Raoult's law
23.
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Define Rheology and Thixotropy.*****