Monday, January 4, 2016

Dr. MGR University Physical Pharmaceutics 2015 Question Paper

Dr. MGR University Question Paper
(LG 4256) FEBRUARY 2015 Sub. Code: 4256
Q.P. Code: 564256
Time: Three hours Maximum: 100 marks
I. Essay: (2 x 20 = 40)
1. a) What are colloids? Explain the stability of colloids using DLVO theory.
How are the colloids protected?
b) Define dissolution. Write about the factors affecting rate of dissolution.
2. a) What are the basic properties of a powder? Explain any one method to
determine one basic property.
b) Define complexes. Classify the complexes with suitable example. Write about
the inclusion complexes.
I. Short notes: (8 x 5 = 40)
1. Classification of flocculating agents
2. Determination of expiry date
3. Classification of viscometers
4. Stability of emulsions
5. Electric properties of interface
6. Isotonic solutions
7. Significance of protein binding
8. Types of suspensions
III. Short answers: (10 x 2 = 20)
1. Gibb’s adsorption equation
2. Spreading coefficient
3. Endocytosis
4. Ultra centrifuge
5. Bancraft rule
6. Ferrocene
7. CMC
8. Bulges and spurs
9. Thioxtrophy
10.Order of reaction
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