Download RGUHS (Rajiv Gandhi University of Health Sciences) B.Pharm Important Question Bank (Bachelor of Pharmacy) Physical Pharmaceutics QP Bank (Latest Important Questions Unit Wise)
PHYSICAL PHARMACEUTICS
II YEAR B. PHARM (RS-4)
CHAPTER - I
DISTRIBUTION LAW
Short essay (05 Marks)
1. State Nernst Distribution law. Give its limitations.
2. Explain the various applications of distribution law in Pharmacy.
3. Explain the effect of molecular association and dissociation on distribution of
solute when added to an immiscible system.
4. State and explain Nernst Distribution law along with its limitations.
5. State Nernst Distribution law. Give its applications in pharmacy.
Short Answer (02 Marks)
1. State Nernst Distribution law.
2. Enlist any four applications of distribution law.
3. Give the limitations of Distribution law.
4. Give Nernst equation for a molecule under going molecular association.
5. Give Nernst equation for a molecule under going molecular dissociation.
CHAPTER ? II
KINETICS AND DRUG STABILITY
Long Essay (10 Marks)
1. Define first order reaction with suitable examples. Deduce an equation for the
determination of rate constant, half life and shelf life for first order reaction
kinetics.
2. Define Zero order reaction with suitable examples. Deduce an equation for the
determination of rate constant, half life and shelf life for zero order reaction
kinetics.
3. Explain chemical degradation of pharmaceutical compounds due to
hydrolysis. Explain its preventive measures.
4. Explain chemical degradation of pharmaceutical compounds due to oxidation.
Explain its preventive measures.
5. Explain chemical degradation of pharmaceutical compounds due to hydrolysis
and oxidation.
6. Enumerate the different methods of determination of order of reaction.
Explain any two methods in detail
7. Define stability studies. Explain in detail how the shelf life of pharmaceutical
product is determined.
8. Give the objectives, salient features, methodology and limitations of
accelerated stability studies.
Short essay (05 Marks)
1. Explain the factors influencing the rate of a reaction.
FirstRanker.com - FirstRanker's Choice
QUESTION BANK
PHYSICAL PHARMACEUTICS
II YEAR B. PHARM (RS-4)
CHAPTER - I
DISTRIBUTION LAW
Short essay (05 Marks)
1. State Nernst Distribution law. Give its limitations.
2. Explain the various applications of distribution law in Pharmacy.
3. Explain the effect of molecular association and dissociation on distribution of
solute when added to an immiscible system.
4. State and explain Nernst Distribution law along with its limitations.
5. State Nernst Distribution law. Give its applications in pharmacy.
Short Answer (02 Marks)
1. State Nernst Distribution law.
2. Enlist any four applications of distribution law.
3. Give the limitations of Distribution law.
4. Give Nernst equation for a molecule under going molecular association.
5. Give Nernst equation for a molecule under going molecular dissociation.
CHAPTER ? II
KINETICS AND DRUG STABILITY
Long Essay (10 Marks)
1. Define first order reaction with suitable examples. Deduce an equation for the
determination of rate constant, half life and shelf life for first order reaction
kinetics.
2. Define Zero order reaction with suitable examples. Deduce an equation for the
determination of rate constant, half life and shelf life for zero order reaction
kinetics.
3. Explain chemical degradation of pharmaceutical compounds due to
hydrolysis. Explain its preventive measures.
4. Explain chemical degradation of pharmaceutical compounds due to oxidation.
Explain its preventive measures.
5. Explain chemical degradation of pharmaceutical compounds due to hydrolysis
and oxidation.
6. Enumerate the different methods of determination of order of reaction.
Explain any two methods in detail
7. Define stability studies. Explain in detail how the shelf life of pharmaceutical
product is determined.
8. Give the objectives, salient features, methodology and limitations of
accelerated stability studies.
Short essay (05 Marks)
1. Explain the factors influencing the rate of a reaction.
2. Explain the preventive measures for chemical degradation due to oxidation.
3. Explain the preventive measures for chemical degradation due to hydrolysis.
4. Explain the graphical and half life method for determination of order of
reaction.
5. Define order of reaction. Explain the substitution method for determination of
order of reaction.
6. Define order of reaction. Explain the differential method for determination of
order of reaction.
7. Explain physical degradation of pharmaceuticals and its preventive measures.
8. Explain environmental factors affecting degradation of drugs.
9. Define Arrhenius plot and give its significance in calculation of shelf life.
10. Explain effect of temperature on rate of a reaction.
11. Explain methodology to calculate shelf life of a drug with graphical
representation.
Short answers (02 Marks)
1. Define rate and order of a reaction
2. Define molecularity of reaction with example
3. Define pseudo zero order reaction with example
4. Define pseudo first order reaction with example
5. Enlist different methods of determination of order of reaction
6. Define zero order reaction with suitable example
7. Define first order reaction with suitable example
8. Give expressions for rate constant and half life of zero and first order rate of a
reaction
9. Give expressions for rate constant and half life of first and second order rate
of a reaction
10. How are pharmaceuticals stabilized against hydrolysis
11. How are pharmaceuticals stabilized against oxidation
12. Define physical and chemical degradation with examples
13. Enlist environmental factors affecting degradation of drugs
14. Enlist various applications of chemical kinetics in pharmacy
15. Give Arrhenius equation and its significance
16. Define shelf life of a medicinal product
17. Draw Arrhenius plot and mention its use
18. Derive an expression for the time taken for 90% retention of potency for a
zero order reaction
19. Derive an equation to show that half life is independent of the concentration in
first order reaction
20. Explain why suspension mostly follow zero order
21. Define half life. Explain concept of half life in first order reaction
22. Define half life. What relation does half life bear to initial concentration in
order and second order
23. Describe pharmaceutical specifications of storage conditions for
pharmaceuticals
24. Differentiate between half life and shelf life for a first order reaction
FirstRanker.com - FirstRanker's Choice
QUESTION BANK
PHYSICAL PHARMACEUTICS
II YEAR B. PHARM (RS-4)
CHAPTER - I
DISTRIBUTION LAW
Short essay (05 Marks)
1. State Nernst Distribution law. Give its limitations.
2. Explain the various applications of distribution law in Pharmacy.
3. Explain the effect of molecular association and dissociation on distribution of
solute when added to an immiscible system.
4. State and explain Nernst Distribution law along with its limitations.
5. State Nernst Distribution law. Give its applications in pharmacy.
Short Answer (02 Marks)
1. State Nernst Distribution law.
2. Enlist any four applications of distribution law.
3. Give the limitations of Distribution law.
4. Give Nernst equation for a molecule under going molecular association.
5. Give Nernst equation for a molecule under going molecular dissociation.
CHAPTER ? II
KINETICS AND DRUG STABILITY
Long Essay (10 Marks)
1. Define first order reaction with suitable examples. Deduce an equation for the
determination of rate constant, half life and shelf life for first order reaction
kinetics.
2. Define Zero order reaction with suitable examples. Deduce an equation for the
determination of rate constant, half life and shelf life for zero order reaction
kinetics.
3. Explain chemical degradation of pharmaceutical compounds due to
hydrolysis. Explain its preventive measures.
4. Explain chemical degradation of pharmaceutical compounds due to oxidation.
Explain its preventive measures.
5. Explain chemical degradation of pharmaceutical compounds due to hydrolysis
and oxidation.
6. Enumerate the different methods of determination of order of reaction.
Explain any two methods in detail
7. Define stability studies. Explain in detail how the shelf life of pharmaceutical
product is determined.
8. Give the objectives, salient features, methodology and limitations of
accelerated stability studies.
Short essay (05 Marks)
1. Explain the factors influencing the rate of a reaction.
2. Explain the preventive measures for chemical degradation due to oxidation.
3. Explain the preventive measures for chemical degradation due to hydrolysis.
4. Explain the graphical and half life method for determination of order of
reaction.
5. Define order of reaction. Explain the substitution method for determination of
order of reaction.
6. Define order of reaction. Explain the differential method for determination of
order of reaction.
7. Explain physical degradation of pharmaceuticals and its preventive measures.
8. Explain environmental factors affecting degradation of drugs.
9. Define Arrhenius plot and give its significance in calculation of shelf life.
10. Explain effect of temperature on rate of a reaction.
11. Explain methodology to calculate shelf life of a drug with graphical
representation.
Short answers (02 Marks)
1. Define rate and order of a reaction
2. Define molecularity of reaction with example
3. Define pseudo zero order reaction with example
4. Define pseudo first order reaction with example
5. Enlist different methods of determination of order of reaction
6. Define zero order reaction with suitable example
7. Define first order reaction with suitable example
8. Give expressions for rate constant and half life of zero and first order rate of a
reaction
9. Give expressions for rate constant and half life of first and second order rate
of a reaction
10. How are pharmaceuticals stabilized against hydrolysis
11. How are pharmaceuticals stabilized against oxidation
12. Define physical and chemical degradation with examples
13. Enlist environmental factors affecting degradation of drugs
14. Enlist various applications of chemical kinetics in pharmacy
15. Give Arrhenius equation and its significance
16. Define shelf life of a medicinal product
17. Draw Arrhenius plot and mention its use
18. Derive an expression for the time taken for 90% retention of potency for a
zero order reaction
19. Derive an equation to show that half life is independent of the concentration in
first order reaction
20. Explain why suspension mostly follow zero order
21. Define half life. Explain concept of half life in first order reaction
22. Define half life. What relation does half life bear to initial concentration in
order and second order
23. Describe pharmaceutical specifications of storage conditions for
pharmaceuticals
24. Differentiate between half life and shelf life for a first order reaction
CHAPTER - III
INTERFACIAL PHENOMENA
Long Essay (10 Marks)
1. Define Surface tension. Explain the principle involved in determination of
surface tension by capillary rise method. Give its limitations.
2. Define Adsorption isotherm. Explain Freundlich and Langmuir adsorption
Isotherms
3. Define Adsorption isotherms. Explain the behavior of various types of
adsorption isotherms with example.
4. Define and classify amphiphiles. Explain the mechanistic role of amphiphiles
in Pharmacy.
Short essay (05 Marks)
1. Give the principle and working of Dunouy?s tensiometer.
2. Explain Freundlich and BET equation with examples.
3. Explain contact angle and its applications in pharmacy.
4. Define HLB and explain Griffins scale.
5. Explain different methods to determine HLB of a surfactant.
6. Explain in detail spreading coefficient with relevant equations.
7. Explain the phenomena of wetting and detergency.
8. Explain the formation of soluble monolayer of an amphiphile.
9. Explain the electrical double layer of an interface.
Short Answer (02 Marks)
1. Define Surface tension and interfacial tension.
2. Enumerate methods to determine Surface tension.
3. Enumerate methods to determine Interfacial tension
4. Give BET equation
5. Define adsorption isotherm.
6. Define Contact angle
7. Define HLB and mention any two applications
8. Define Spreading coefficient
9. Relate contact angle with miscibility
10. Define amphiphile
11. Define CMC
12. What are micelles? Give its structure
13. Give Gibb?s adsorption equation
14. Define Nernst Potential
15. Define Zeta potential.
16. List out wetting agents. Describe any one method for determination of wetting
17. Explain the concept of surface tension
18. What is meant by surface excess? Write its applications in pharmacy
19. Classify surfactants based on its applications
20. Define positive adsorption. Give two examples
21. Enumerate applications of amphiphiles in pharmacy
FirstRanker.com - FirstRanker's Choice
QUESTION BANK
PHYSICAL PHARMACEUTICS
II YEAR B. PHARM (RS-4)
CHAPTER - I
DISTRIBUTION LAW
Short essay (05 Marks)
1. State Nernst Distribution law. Give its limitations.
2. Explain the various applications of distribution law in Pharmacy.
3. Explain the effect of molecular association and dissociation on distribution of
solute when added to an immiscible system.
4. State and explain Nernst Distribution law along with its limitations.
5. State Nernst Distribution law. Give its applications in pharmacy.
Short Answer (02 Marks)
1. State Nernst Distribution law.
2. Enlist any four applications of distribution law.
3. Give the limitations of Distribution law.
4. Give Nernst equation for a molecule under going molecular association.
5. Give Nernst equation for a molecule under going molecular dissociation.
CHAPTER ? II
KINETICS AND DRUG STABILITY
Long Essay (10 Marks)
1. Define first order reaction with suitable examples. Deduce an equation for the
determination of rate constant, half life and shelf life for first order reaction
kinetics.
2. Define Zero order reaction with suitable examples. Deduce an equation for the
determination of rate constant, half life and shelf life for zero order reaction
kinetics.
3. Explain chemical degradation of pharmaceutical compounds due to
hydrolysis. Explain its preventive measures.
4. Explain chemical degradation of pharmaceutical compounds due to oxidation.
Explain its preventive measures.
5. Explain chemical degradation of pharmaceutical compounds due to hydrolysis
and oxidation.
6. Enumerate the different methods of determination of order of reaction.
Explain any two methods in detail
7. Define stability studies. Explain in detail how the shelf life of pharmaceutical
product is determined.
8. Give the objectives, salient features, methodology and limitations of
accelerated stability studies.
Short essay (05 Marks)
1. Explain the factors influencing the rate of a reaction.
2. Explain the preventive measures for chemical degradation due to oxidation.
3. Explain the preventive measures for chemical degradation due to hydrolysis.
4. Explain the graphical and half life method for determination of order of
reaction.
5. Define order of reaction. Explain the substitution method for determination of
order of reaction.
6. Define order of reaction. Explain the differential method for determination of
order of reaction.
7. Explain physical degradation of pharmaceuticals and its preventive measures.
8. Explain environmental factors affecting degradation of drugs.
9. Define Arrhenius plot and give its significance in calculation of shelf life.
10. Explain effect of temperature on rate of a reaction.
11. Explain methodology to calculate shelf life of a drug with graphical
representation.
Short answers (02 Marks)
1. Define rate and order of a reaction
2. Define molecularity of reaction with example
3. Define pseudo zero order reaction with example
4. Define pseudo first order reaction with example
5. Enlist different methods of determination of order of reaction
6. Define zero order reaction with suitable example
7. Define first order reaction with suitable example
8. Give expressions for rate constant and half life of zero and first order rate of a
reaction
9. Give expressions for rate constant and half life of first and second order rate
of a reaction
10. How are pharmaceuticals stabilized against hydrolysis
11. How are pharmaceuticals stabilized against oxidation
12. Define physical and chemical degradation with examples
13. Enlist environmental factors affecting degradation of drugs
14. Enlist various applications of chemical kinetics in pharmacy
15. Give Arrhenius equation and its significance
16. Define shelf life of a medicinal product
17. Draw Arrhenius plot and mention its use
18. Derive an expression for the time taken for 90% retention of potency for a
zero order reaction
19. Derive an equation to show that half life is independent of the concentration in
first order reaction
20. Explain why suspension mostly follow zero order
21. Define half life. Explain concept of half life in first order reaction
22. Define half life. What relation does half life bear to initial concentration in
order and second order
23. Describe pharmaceutical specifications of storage conditions for
pharmaceuticals
24. Differentiate between half life and shelf life for a first order reaction
CHAPTER - III
INTERFACIAL PHENOMENA
Long Essay (10 Marks)
1. Define Surface tension. Explain the principle involved in determination of
surface tension by capillary rise method. Give its limitations.
2. Define Adsorption isotherm. Explain Freundlich and Langmuir adsorption
Isotherms
3. Define Adsorption isotherms. Explain the behavior of various types of
adsorption isotherms with example.
4. Define and classify amphiphiles. Explain the mechanistic role of amphiphiles
in Pharmacy.
Short essay (05 Marks)
1. Give the principle and working of Dunouy?s tensiometer.
2. Explain Freundlich and BET equation with examples.
3. Explain contact angle and its applications in pharmacy.
4. Define HLB and explain Griffins scale.
5. Explain different methods to determine HLB of a surfactant.
6. Explain in detail spreading coefficient with relevant equations.
7. Explain the phenomena of wetting and detergency.
8. Explain the formation of soluble monolayer of an amphiphile.
9. Explain the electrical double layer of an interface.
Short Answer (02 Marks)
1. Define Surface tension and interfacial tension.
2. Enumerate methods to determine Surface tension.
3. Enumerate methods to determine Interfacial tension
4. Give BET equation
5. Define adsorption isotherm.
6. Define Contact angle
7. Define HLB and mention any two applications
8. Define Spreading coefficient
9. Relate contact angle with miscibility
10. Define amphiphile
11. Define CMC
12. What are micelles? Give its structure
13. Give Gibb?s adsorption equation
14. Define Nernst Potential
15. Define Zeta potential.
16. List out wetting agents. Describe any one method for determination of wetting
17. Explain the concept of surface tension
18. What is meant by surface excess? Write its applications in pharmacy
19. Classify surfactants based on its applications
20. Define positive adsorption. Give two examples
21. Enumerate applications of amphiphiles in pharmacy
CHAPTER - IV
DIFFUSION AND DISSOLUTION
Short essay (05 Marks)
1. Explain steady state diffusion
2. State and explain Fick?s first and second law of diffusion.
3. Explain different diffusion cell apparatus
4. Explain various factors affecting rate of dissolution of drugs with examples.
5. Explain the mechanism of dissolution of tablets
6. Define dissolution? Explain Noyes Whitney equation
7. State and derive Hixon Crowell cube root law
8. Explain various dissolution apparatus
9. Write a note on assembly of different diffusion apparatus
Short answer (02 Marks)
1. Define Diffusion. Enlist types of diffusion.
2. Give Diffusion equation and explain the terms.
3. State Fick?s first law with equation.
4. Define flux
5. Explain sink condition.
6. Define steady state diffusion
7. Define Diffusion and Dissolution
8. Enlist any four factors affecting dissolution of drugs
9. State Fick?s second law with equation
10. Give Noyes Whitney equation and its terms.
CHAPTER - V
RHEOLOGY
Long Essay (10 Marks)
1. Define and explain Non Newtonian flow of liquids
2. Define Newtonian flow of liquids. Explain shear thinning system of liquids
3. Define Thixotropy. Explain different methods for its determination and give
its application in pharmacy.
4. Define the mechanism of thixotropy and give its applications in pharmacy.
5. Define Viscosity. Classify different viscometers with examples. With the help
of neat diagram explain the principle and working of any one single point
viscometer.
6. Define Viscosity. Classify different viscometers with examples. With the help
of neat diagram explain the principle and working of any one multipoint
viscometer.
7. With the help of neat diagram explain the working principle of Cup & bob and
Cone & plate viscometer with its advantages and disadvantages.
FirstRanker.com - FirstRanker's Choice
QUESTION BANK
PHYSICAL PHARMACEUTICS
II YEAR B. PHARM (RS-4)
CHAPTER - I
DISTRIBUTION LAW
Short essay (05 Marks)
1. State Nernst Distribution law. Give its limitations.
2. Explain the various applications of distribution law in Pharmacy.
3. Explain the effect of molecular association and dissociation on distribution of
solute when added to an immiscible system.
4. State and explain Nernst Distribution law along with its limitations.
5. State Nernst Distribution law. Give its applications in pharmacy.
Short Answer (02 Marks)
1. State Nernst Distribution law.
2. Enlist any four applications of distribution law.
3. Give the limitations of Distribution law.
4. Give Nernst equation for a molecule under going molecular association.
5. Give Nernst equation for a molecule under going molecular dissociation.
CHAPTER ? II
KINETICS AND DRUG STABILITY
Long Essay (10 Marks)
1. Define first order reaction with suitable examples. Deduce an equation for the
determination of rate constant, half life and shelf life for first order reaction
kinetics.
2. Define Zero order reaction with suitable examples. Deduce an equation for the
determination of rate constant, half life and shelf life for zero order reaction
kinetics.
3. Explain chemical degradation of pharmaceutical compounds due to
hydrolysis. Explain its preventive measures.
4. Explain chemical degradation of pharmaceutical compounds due to oxidation.
Explain its preventive measures.
5. Explain chemical degradation of pharmaceutical compounds due to hydrolysis
and oxidation.
6. Enumerate the different methods of determination of order of reaction.
Explain any two methods in detail
7. Define stability studies. Explain in detail how the shelf life of pharmaceutical
product is determined.
8. Give the objectives, salient features, methodology and limitations of
accelerated stability studies.
Short essay (05 Marks)
1. Explain the factors influencing the rate of a reaction.
2. Explain the preventive measures for chemical degradation due to oxidation.
3. Explain the preventive measures for chemical degradation due to hydrolysis.
4. Explain the graphical and half life method for determination of order of
reaction.
5. Define order of reaction. Explain the substitution method for determination of
order of reaction.
6. Define order of reaction. Explain the differential method for determination of
order of reaction.
7. Explain physical degradation of pharmaceuticals and its preventive measures.
8. Explain environmental factors affecting degradation of drugs.
9. Define Arrhenius plot and give its significance in calculation of shelf life.
10. Explain effect of temperature on rate of a reaction.
11. Explain methodology to calculate shelf life of a drug with graphical
representation.
Short answers (02 Marks)
1. Define rate and order of a reaction
2. Define molecularity of reaction with example
3. Define pseudo zero order reaction with example
4. Define pseudo first order reaction with example
5. Enlist different methods of determination of order of reaction
6. Define zero order reaction with suitable example
7. Define first order reaction with suitable example
8. Give expressions for rate constant and half life of zero and first order rate of a
reaction
9. Give expressions for rate constant and half life of first and second order rate
of a reaction
10. How are pharmaceuticals stabilized against hydrolysis
11. How are pharmaceuticals stabilized against oxidation
12. Define physical and chemical degradation with examples
13. Enlist environmental factors affecting degradation of drugs
14. Enlist various applications of chemical kinetics in pharmacy
15. Give Arrhenius equation and its significance
16. Define shelf life of a medicinal product
17. Draw Arrhenius plot and mention its use
18. Derive an expression for the time taken for 90% retention of potency for a
zero order reaction
19. Derive an equation to show that half life is independent of the concentration in
first order reaction
20. Explain why suspension mostly follow zero order
21. Define half life. Explain concept of half life in first order reaction
22. Define half life. What relation does half life bear to initial concentration in
order and second order
23. Describe pharmaceutical specifications of storage conditions for
pharmaceuticals
24. Differentiate between half life and shelf life for a first order reaction
CHAPTER - III
INTERFACIAL PHENOMENA
Long Essay (10 Marks)
1. Define Surface tension. Explain the principle involved in determination of
surface tension by capillary rise method. Give its limitations.
2. Define Adsorption isotherm. Explain Freundlich and Langmuir adsorption
Isotherms
3. Define Adsorption isotherms. Explain the behavior of various types of
adsorption isotherms with example.
4. Define and classify amphiphiles. Explain the mechanistic role of amphiphiles
in Pharmacy.
Short essay (05 Marks)
1. Give the principle and working of Dunouy?s tensiometer.
2. Explain Freundlich and BET equation with examples.
3. Explain contact angle and its applications in pharmacy.
4. Define HLB and explain Griffins scale.
5. Explain different methods to determine HLB of a surfactant.
6. Explain in detail spreading coefficient with relevant equations.
7. Explain the phenomena of wetting and detergency.
8. Explain the formation of soluble monolayer of an amphiphile.
9. Explain the electrical double layer of an interface.
Short Answer (02 Marks)
1. Define Surface tension and interfacial tension.
2. Enumerate methods to determine Surface tension.
3. Enumerate methods to determine Interfacial tension
4. Give BET equation
5. Define adsorption isotherm.
6. Define Contact angle
7. Define HLB and mention any two applications
8. Define Spreading coefficient
9. Relate contact angle with miscibility
10. Define amphiphile
11. Define CMC
12. What are micelles? Give its structure
13. Give Gibb?s adsorption equation
14. Define Nernst Potential
15. Define Zeta potential.
16. List out wetting agents. Describe any one method for determination of wetting
17. Explain the concept of surface tension
18. What is meant by surface excess? Write its applications in pharmacy
19. Classify surfactants based on its applications
20. Define positive adsorption. Give two examples
21. Enumerate applications of amphiphiles in pharmacy
CHAPTER - IV
DIFFUSION AND DISSOLUTION
Short essay (05 Marks)
1. Explain steady state diffusion
2. State and explain Fick?s first and second law of diffusion.
3. Explain different diffusion cell apparatus
4. Explain various factors affecting rate of dissolution of drugs with examples.
5. Explain the mechanism of dissolution of tablets
6. Define dissolution? Explain Noyes Whitney equation
7. State and derive Hixon Crowell cube root law
8. Explain various dissolution apparatus
9. Write a note on assembly of different diffusion apparatus
Short answer (02 Marks)
1. Define Diffusion. Enlist types of diffusion.
2. Give Diffusion equation and explain the terms.
3. State Fick?s first law with equation.
4. Define flux
5. Explain sink condition.
6. Define steady state diffusion
7. Define Diffusion and Dissolution
8. Enlist any four factors affecting dissolution of drugs
9. State Fick?s second law with equation
10. Give Noyes Whitney equation and its terms.
CHAPTER - V
RHEOLOGY
Long Essay (10 Marks)
1. Define and explain Non Newtonian flow of liquids
2. Define Newtonian flow of liquids. Explain shear thinning system of liquids
3. Define Thixotropy. Explain different methods for its determination and give
its application in pharmacy.
4. Define the mechanism of thixotropy and give its applications in pharmacy.
5. Define Viscosity. Classify different viscometers with examples. With the help
of neat diagram explain the principle and working of any one single point
viscometer.
6. Define Viscosity. Classify different viscometers with examples. With the help
of neat diagram explain the principle and working of any one multipoint
viscometer.
7. With the help of neat diagram explain the working principle of Cup & bob and
Cone & plate viscometer with its advantages and disadvantages.
Short Essay (05 Marks)
1. Explain the Newtonian system of flow with examples
2. Explain Plastic and dilatant flow of liquids
3. Discuss plastic and pseudoplastic system of flow
4. Explain shear thickening system with examples
5. Explain the mechanism of thixotropy with examples
6. Explain the methods to determine the thixotropic behavior of liquids.
7. Explain the principle of cup & bob viscometer
8. Explain the principle of Ostwald?s viscometer
9. Explain the physical stability if suspension.
10. Explain the different methods to evaluate the stability of suspensions.
Short Answer (02 Marks)
1. Define Rheology. Give any two applications
2. Describe a Rheogram and Rheopexy
3. What is yield value? Give its applications
4. Define dilatancy with examples
5. Define Newton?s law of flow with equation
6. Give examples for plastic and pseudoplastic system of flow
7. What is Negative thixotropy
8. What are Bulges and Spurs
9. Explain Bulges with example.
10. Explain Spurs with example.
11. Define Viscosity along with its units of expressions
12. What is plug flow? How do you overcome it.
13. Define microemulsions and multiple emulsions
14. Draw flow curve for anti-thixotropy flow and explain its mechanism.
15. Explain the terms shear thinning and shear thickening system. Give example
for each type of material.
CHAPTER - VI
MICROMERITICS
Short answers (05 Marks)
1. State Edmundson?s equation
2. State stokes law
3. Explain frequency distribution curve
4. Explain normal distribution curve
5. Explain percent log normal distribution curve
6. What is polydisperse system
7. What are equivalent diameters? Explain martins diameter
8. Explain ferret diameter and projected diameter
9. What is particle size distribution and particle number
10. What is quantasorb. Explain its principle
11. What are fundamental properties? Give examples
12. What is bulk density ant true density
13. Define angle of repose. Write its significance
14. What is void volume and porosity
FirstRanker.com - FirstRanker's Choice
QUESTION BANK
PHYSICAL PHARMACEUTICS
II YEAR B. PHARM (RS-4)
CHAPTER - I
DISTRIBUTION LAW
Short essay (05 Marks)
1. State Nernst Distribution law. Give its limitations.
2. Explain the various applications of distribution law in Pharmacy.
3. Explain the effect of molecular association and dissociation on distribution of
solute when added to an immiscible system.
4. State and explain Nernst Distribution law along with its limitations.
5. State Nernst Distribution law. Give its applications in pharmacy.
Short Answer (02 Marks)
1. State Nernst Distribution law.
2. Enlist any four applications of distribution law.
3. Give the limitations of Distribution law.
4. Give Nernst equation for a molecule under going molecular association.
5. Give Nernst equation for a molecule under going molecular dissociation.
CHAPTER ? II
KINETICS AND DRUG STABILITY
Long Essay (10 Marks)
1. Define first order reaction with suitable examples. Deduce an equation for the
determination of rate constant, half life and shelf life for first order reaction
kinetics.
2. Define Zero order reaction with suitable examples. Deduce an equation for the
determination of rate constant, half life and shelf life for zero order reaction
kinetics.
3. Explain chemical degradation of pharmaceutical compounds due to
hydrolysis. Explain its preventive measures.
4. Explain chemical degradation of pharmaceutical compounds due to oxidation.
Explain its preventive measures.
5. Explain chemical degradation of pharmaceutical compounds due to hydrolysis
and oxidation.
6. Enumerate the different methods of determination of order of reaction.
Explain any two methods in detail
7. Define stability studies. Explain in detail how the shelf life of pharmaceutical
product is determined.
8. Give the objectives, salient features, methodology and limitations of
accelerated stability studies.
Short essay (05 Marks)
1. Explain the factors influencing the rate of a reaction.
2. Explain the preventive measures for chemical degradation due to oxidation.
3. Explain the preventive measures for chemical degradation due to hydrolysis.
4. Explain the graphical and half life method for determination of order of
reaction.
5. Define order of reaction. Explain the substitution method for determination of
order of reaction.
6. Define order of reaction. Explain the differential method for determination of
order of reaction.
7. Explain physical degradation of pharmaceuticals and its preventive measures.
8. Explain environmental factors affecting degradation of drugs.
9. Define Arrhenius plot and give its significance in calculation of shelf life.
10. Explain effect of temperature on rate of a reaction.
11. Explain methodology to calculate shelf life of a drug with graphical
representation.
Short answers (02 Marks)
1. Define rate and order of a reaction
2. Define molecularity of reaction with example
3. Define pseudo zero order reaction with example
4. Define pseudo first order reaction with example
5. Enlist different methods of determination of order of reaction
6. Define zero order reaction with suitable example
7. Define first order reaction with suitable example
8. Give expressions for rate constant and half life of zero and first order rate of a
reaction
9. Give expressions for rate constant and half life of first and second order rate
of a reaction
10. How are pharmaceuticals stabilized against hydrolysis
11. How are pharmaceuticals stabilized against oxidation
12. Define physical and chemical degradation with examples
13. Enlist environmental factors affecting degradation of drugs
14. Enlist various applications of chemical kinetics in pharmacy
15. Give Arrhenius equation and its significance
16. Define shelf life of a medicinal product
17. Draw Arrhenius plot and mention its use
18. Derive an expression for the time taken for 90% retention of potency for a
zero order reaction
19. Derive an equation to show that half life is independent of the concentration in
first order reaction
20. Explain why suspension mostly follow zero order
21. Define half life. Explain concept of half life in first order reaction
22. Define half life. What relation does half life bear to initial concentration in
order and second order
23. Describe pharmaceutical specifications of storage conditions for
pharmaceuticals
24. Differentiate between half life and shelf life for a first order reaction
CHAPTER - III
INTERFACIAL PHENOMENA
Long Essay (10 Marks)
1. Define Surface tension. Explain the principle involved in determination of
surface tension by capillary rise method. Give its limitations.
2. Define Adsorption isotherm. Explain Freundlich and Langmuir adsorption
Isotherms
3. Define Adsorption isotherms. Explain the behavior of various types of
adsorption isotherms with example.
4. Define and classify amphiphiles. Explain the mechanistic role of amphiphiles
in Pharmacy.
Short essay (05 Marks)
1. Give the principle and working of Dunouy?s tensiometer.
2. Explain Freundlich and BET equation with examples.
3. Explain contact angle and its applications in pharmacy.
4. Define HLB and explain Griffins scale.
5. Explain different methods to determine HLB of a surfactant.
6. Explain in detail spreading coefficient with relevant equations.
7. Explain the phenomena of wetting and detergency.
8. Explain the formation of soluble monolayer of an amphiphile.
9. Explain the electrical double layer of an interface.
Short Answer (02 Marks)
1. Define Surface tension and interfacial tension.
2. Enumerate methods to determine Surface tension.
3. Enumerate methods to determine Interfacial tension
4. Give BET equation
5. Define adsorption isotherm.
6. Define Contact angle
7. Define HLB and mention any two applications
8. Define Spreading coefficient
9. Relate contact angle with miscibility
10. Define amphiphile
11. Define CMC
12. What are micelles? Give its structure
13. Give Gibb?s adsorption equation
14. Define Nernst Potential
15. Define Zeta potential.
16. List out wetting agents. Describe any one method for determination of wetting
17. Explain the concept of surface tension
18. What is meant by surface excess? Write its applications in pharmacy
19. Classify surfactants based on its applications
20. Define positive adsorption. Give two examples
21. Enumerate applications of amphiphiles in pharmacy
CHAPTER - IV
DIFFUSION AND DISSOLUTION
Short essay (05 Marks)
1. Explain steady state diffusion
2. State and explain Fick?s first and second law of diffusion.
3. Explain different diffusion cell apparatus
4. Explain various factors affecting rate of dissolution of drugs with examples.
5. Explain the mechanism of dissolution of tablets
6. Define dissolution? Explain Noyes Whitney equation
7. State and derive Hixon Crowell cube root law
8. Explain various dissolution apparatus
9. Write a note on assembly of different diffusion apparatus
Short answer (02 Marks)
1. Define Diffusion. Enlist types of diffusion.
2. Give Diffusion equation and explain the terms.
3. State Fick?s first law with equation.
4. Define flux
5. Explain sink condition.
6. Define steady state diffusion
7. Define Diffusion and Dissolution
8. Enlist any four factors affecting dissolution of drugs
9. State Fick?s second law with equation
10. Give Noyes Whitney equation and its terms.
CHAPTER - V
RHEOLOGY
Long Essay (10 Marks)
1. Define and explain Non Newtonian flow of liquids
2. Define Newtonian flow of liquids. Explain shear thinning system of liquids
3. Define Thixotropy. Explain different methods for its determination and give
its application in pharmacy.
4. Define the mechanism of thixotropy and give its applications in pharmacy.
5. Define Viscosity. Classify different viscometers with examples. With the help
of neat diagram explain the principle and working of any one single point
viscometer.
6. Define Viscosity. Classify different viscometers with examples. With the help
of neat diagram explain the principle and working of any one multipoint
viscometer.
7. With the help of neat diagram explain the working principle of Cup & bob and
Cone & plate viscometer with its advantages and disadvantages.
Short Essay (05 Marks)
1. Explain the Newtonian system of flow with examples
2. Explain Plastic and dilatant flow of liquids
3. Discuss plastic and pseudoplastic system of flow
4. Explain shear thickening system with examples
5. Explain the mechanism of thixotropy with examples
6. Explain the methods to determine the thixotropic behavior of liquids.
7. Explain the principle of cup & bob viscometer
8. Explain the principle of Ostwald?s viscometer
9. Explain the physical stability if suspension.
10. Explain the different methods to evaluate the stability of suspensions.
Short Answer (02 Marks)
1. Define Rheology. Give any two applications
2. Describe a Rheogram and Rheopexy
3. What is yield value? Give its applications
4. Define dilatancy with examples
5. Define Newton?s law of flow with equation
6. Give examples for plastic and pseudoplastic system of flow
7. What is Negative thixotropy
8. What are Bulges and Spurs
9. Explain Bulges with example.
10. Explain Spurs with example.
11. Define Viscosity along with its units of expressions
12. What is plug flow? How do you overcome it.
13. Define microemulsions and multiple emulsions
14. Draw flow curve for anti-thixotropy flow and explain its mechanism.
15. Explain the terms shear thinning and shear thickening system. Give example
for each type of material.
CHAPTER - VI
MICROMERITICS
Short answers (05 Marks)
1. State Edmundson?s equation
2. State stokes law
3. Explain frequency distribution curve
4. Explain normal distribution curve
5. Explain percent log normal distribution curve
6. What is polydisperse system
7. What are equivalent diameters? Explain martins diameter
8. Explain ferret diameter and projected diameter
9. What is particle size distribution and particle number
10. What is quantasorb. Explain its principle
11. What are fundamental properties? Give examples
12. What is bulk density ant true density
13. Define angle of repose. Write its significance
14. What is void volume and porosity
15. What is granular density and true density
16. What is compressibility index
17. What is rate of flow of powder and explain carr?s index
18. Give packaging arrangement of powders
19. Define volume-surface mean diameter. Give the equation for its calculation.
20. Define shape factor. What is its importance in micromeritics?
21. List four methods to improve the flow properties of granules and powders.
22. List the ways to characterize a powder
Short Essay (05 Marks)
1. How do you represent particle size distribution
2. Enumerate methods to determine the particle size. Explain any two methods
to determine the particle size
3. With the help of neat diagram explain Andreason?s pipette method to
determine the particle size
4. With the help of neat diagram explain principle and working of coulter
counter method to determine the particle size
5. What is specific surface area? How is it measured by air permeability
method
6. What are derived properties of powders? Explain any two
7. Define angle of repose. Explain the method to determine the same
8. Explain porosity. Give its applications in pharmacy
9. Enumerate different methods of determination of true density and explain
any one.
10. List different types of densities of powder/granules. Write the experimental
method for the determination of any one of them.
CHAPTER -VII
COLLOIDS
Long Essays (10 Marks)
1. Discuss the electrical properties and kinetic properties of colloids
2. Discuss the optical and electrical properties of colloids.
3. Discuss the kinetic and optical properties of colloids.
4. What are colloids? Give example. Explain any four methods of preparation of
different types of colloids.
5. Explain different methods of preparation and purification of colloids.
6. Explain different purification methods and protection of colloids.
Short Essays (05 Marks)
1. What are colloids? Classify the colloids. Differentiate between different types
of colloids.
2. What are hydrophobic colloids? Describe any four preparation methods.
3. Discuss association colloids with example.
4. Explain protection of colloids.
FirstRanker.com - FirstRanker's Choice
QUESTION BANK
PHYSICAL PHARMACEUTICS
II YEAR B. PHARM (RS-4)
CHAPTER - I
DISTRIBUTION LAW
Short essay (05 Marks)
1. State Nernst Distribution law. Give its limitations.
2. Explain the various applications of distribution law in Pharmacy.
3. Explain the effect of molecular association and dissociation on distribution of
solute when added to an immiscible system.
4. State and explain Nernst Distribution law along with its limitations.
5. State Nernst Distribution law. Give its applications in pharmacy.
Short Answer (02 Marks)
1. State Nernst Distribution law.
2. Enlist any four applications of distribution law.
3. Give the limitations of Distribution law.
4. Give Nernst equation for a molecule under going molecular association.
5. Give Nernst equation for a molecule under going molecular dissociation.
CHAPTER ? II
KINETICS AND DRUG STABILITY
Long Essay (10 Marks)
1. Define first order reaction with suitable examples. Deduce an equation for the
determination of rate constant, half life and shelf life for first order reaction
kinetics.
2. Define Zero order reaction with suitable examples. Deduce an equation for the
determination of rate constant, half life and shelf life for zero order reaction
kinetics.
3. Explain chemical degradation of pharmaceutical compounds due to
hydrolysis. Explain its preventive measures.
4. Explain chemical degradation of pharmaceutical compounds due to oxidation.
Explain its preventive measures.
5. Explain chemical degradation of pharmaceutical compounds due to hydrolysis
and oxidation.
6. Enumerate the different methods of determination of order of reaction.
Explain any two methods in detail
7. Define stability studies. Explain in detail how the shelf life of pharmaceutical
product is determined.
8. Give the objectives, salient features, methodology and limitations of
accelerated stability studies.
Short essay (05 Marks)
1. Explain the factors influencing the rate of a reaction.
2. Explain the preventive measures for chemical degradation due to oxidation.
3. Explain the preventive measures for chemical degradation due to hydrolysis.
4. Explain the graphical and half life method for determination of order of
reaction.
5. Define order of reaction. Explain the substitution method for determination of
order of reaction.
6. Define order of reaction. Explain the differential method for determination of
order of reaction.
7. Explain physical degradation of pharmaceuticals and its preventive measures.
8. Explain environmental factors affecting degradation of drugs.
9. Define Arrhenius plot and give its significance in calculation of shelf life.
10. Explain effect of temperature on rate of a reaction.
11. Explain methodology to calculate shelf life of a drug with graphical
representation.
Short answers (02 Marks)
1. Define rate and order of a reaction
2. Define molecularity of reaction with example
3. Define pseudo zero order reaction with example
4. Define pseudo first order reaction with example
5. Enlist different methods of determination of order of reaction
6. Define zero order reaction with suitable example
7. Define first order reaction with suitable example
8. Give expressions for rate constant and half life of zero and first order rate of a
reaction
9. Give expressions for rate constant and half life of first and second order rate
of a reaction
10. How are pharmaceuticals stabilized against hydrolysis
11. How are pharmaceuticals stabilized against oxidation
12. Define physical and chemical degradation with examples
13. Enlist environmental factors affecting degradation of drugs
14. Enlist various applications of chemical kinetics in pharmacy
15. Give Arrhenius equation and its significance
16. Define shelf life of a medicinal product
17. Draw Arrhenius plot and mention its use
18. Derive an expression for the time taken for 90% retention of potency for a
zero order reaction
19. Derive an equation to show that half life is independent of the concentration in
first order reaction
20. Explain why suspension mostly follow zero order
21. Define half life. Explain concept of half life in first order reaction
22. Define half life. What relation does half life bear to initial concentration in
order and second order
23. Describe pharmaceutical specifications of storage conditions for
pharmaceuticals
24. Differentiate between half life and shelf life for a first order reaction
CHAPTER - III
INTERFACIAL PHENOMENA
Long Essay (10 Marks)
1. Define Surface tension. Explain the principle involved in determination of
surface tension by capillary rise method. Give its limitations.
2. Define Adsorption isotherm. Explain Freundlich and Langmuir adsorption
Isotherms
3. Define Adsorption isotherms. Explain the behavior of various types of
adsorption isotherms with example.
4. Define and classify amphiphiles. Explain the mechanistic role of amphiphiles
in Pharmacy.
Short essay (05 Marks)
1. Give the principle and working of Dunouy?s tensiometer.
2. Explain Freundlich and BET equation with examples.
3. Explain contact angle and its applications in pharmacy.
4. Define HLB and explain Griffins scale.
5. Explain different methods to determine HLB of a surfactant.
6. Explain in detail spreading coefficient with relevant equations.
7. Explain the phenomena of wetting and detergency.
8. Explain the formation of soluble monolayer of an amphiphile.
9. Explain the electrical double layer of an interface.
Short Answer (02 Marks)
1. Define Surface tension and interfacial tension.
2. Enumerate methods to determine Surface tension.
3. Enumerate methods to determine Interfacial tension
4. Give BET equation
5. Define adsorption isotherm.
6. Define Contact angle
7. Define HLB and mention any two applications
8. Define Spreading coefficient
9. Relate contact angle with miscibility
10. Define amphiphile
11. Define CMC
12. What are micelles? Give its structure
13. Give Gibb?s adsorption equation
14. Define Nernst Potential
15. Define Zeta potential.
16. List out wetting agents. Describe any one method for determination of wetting
17. Explain the concept of surface tension
18. What is meant by surface excess? Write its applications in pharmacy
19. Classify surfactants based on its applications
20. Define positive adsorption. Give two examples
21. Enumerate applications of amphiphiles in pharmacy
CHAPTER - IV
DIFFUSION AND DISSOLUTION
Short essay (05 Marks)
1. Explain steady state diffusion
2. State and explain Fick?s first and second law of diffusion.
3. Explain different diffusion cell apparatus
4. Explain various factors affecting rate of dissolution of drugs with examples.
5. Explain the mechanism of dissolution of tablets
6. Define dissolution? Explain Noyes Whitney equation
7. State and derive Hixon Crowell cube root law
8. Explain various dissolution apparatus
9. Write a note on assembly of different diffusion apparatus
Short answer (02 Marks)
1. Define Diffusion. Enlist types of diffusion.
2. Give Diffusion equation and explain the terms.
3. State Fick?s first law with equation.
4. Define flux
5. Explain sink condition.
6. Define steady state diffusion
7. Define Diffusion and Dissolution
8. Enlist any four factors affecting dissolution of drugs
9. State Fick?s second law with equation
10. Give Noyes Whitney equation and its terms.
CHAPTER - V
RHEOLOGY
Long Essay (10 Marks)
1. Define and explain Non Newtonian flow of liquids
2. Define Newtonian flow of liquids. Explain shear thinning system of liquids
3. Define Thixotropy. Explain different methods for its determination and give
its application in pharmacy.
4. Define the mechanism of thixotropy and give its applications in pharmacy.
5. Define Viscosity. Classify different viscometers with examples. With the help
of neat diagram explain the principle and working of any one single point
viscometer.
6. Define Viscosity. Classify different viscometers with examples. With the help
of neat diagram explain the principle and working of any one multipoint
viscometer.
7. With the help of neat diagram explain the working principle of Cup & bob and
Cone & plate viscometer with its advantages and disadvantages.
Short Essay (05 Marks)
1. Explain the Newtonian system of flow with examples
2. Explain Plastic and dilatant flow of liquids
3. Discuss plastic and pseudoplastic system of flow
4. Explain shear thickening system with examples
5. Explain the mechanism of thixotropy with examples
6. Explain the methods to determine the thixotropic behavior of liquids.
7. Explain the principle of cup & bob viscometer
8. Explain the principle of Ostwald?s viscometer
9. Explain the physical stability if suspension.
10. Explain the different methods to evaluate the stability of suspensions.
Short Answer (02 Marks)
1. Define Rheology. Give any two applications
2. Describe a Rheogram and Rheopexy
3. What is yield value? Give its applications
4. Define dilatancy with examples
5. Define Newton?s law of flow with equation
6. Give examples for plastic and pseudoplastic system of flow
7. What is Negative thixotropy
8. What are Bulges and Spurs
9. Explain Bulges with example.
10. Explain Spurs with example.
11. Define Viscosity along with its units of expressions
12. What is plug flow? How do you overcome it.
13. Define microemulsions and multiple emulsions
14. Draw flow curve for anti-thixotropy flow and explain its mechanism.
15. Explain the terms shear thinning and shear thickening system. Give example
for each type of material.
CHAPTER - VI
MICROMERITICS
Short answers (05 Marks)
1. State Edmundson?s equation
2. State stokes law
3. Explain frequency distribution curve
4. Explain normal distribution curve
5. Explain percent log normal distribution curve
6. What is polydisperse system
7. What are equivalent diameters? Explain martins diameter
8. Explain ferret diameter and projected diameter
9. What is particle size distribution and particle number
10. What is quantasorb. Explain its principle
11. What are fundamental properties? Give examples
12. What is bulk density ant true density
13. Define angle of repose. Write its significance
14. What is void volume and porosity
15. What is granular density and true density
16. What is compressibility index
17. What is rate of flow of powder and explain carr?s index
18. Give packaging arrangement of powders
19. Define volume-surface mean diameter. Give the equation for its calculation.
20. Define shape factor. What is its importance in micromeritics?
21. List four methods to improve the flow properties of granules and powders.
22. List the ways to characterize a powder
Short Essay (05 Marks)
1. How do you represent particle size distribution
2. Enumerate methods to determine the particle size. Explain any two methods
to determine the particle size
3. With the help of neat diagram explain Andreason?s pipette method to
determine the particle size
4. With the help of neat diagram explain principle and working of coulter
counter method to determine the particle size
5. What is specific surface area? How is it measured by air permeability
method
6. What are derived properties of powders? Explain any two
7. Define angle of repose. Explain the method to determine the same
8. Explain porosity. Give its applications in pharmacy
9. Enumerate different methods of determination of true density and explain
any one.
10. List different types of densities of powder/granules. Write the experimental
method for the determination of any one of them.
CHAPTER -VII
COLLOIDS
Long Essays (10 Marks)
1. Discuss the electrical properties and kinetic properties of colloids
2. Discuss the optical and electrical properties of colloids.
3. Discuss the kinetic and optical properties of colloids.
4. What are colloids? Give example. Explain any four methods of preparation of
different types of colloids.
5. Explain different methods of preparation and purification of colloids.
6. Explain different purification methods and protection of colloids.
Short Essays (05 Marks)
1. What are colloids? Classify the colloids. Differentiate between different types
of colloids.
2. What are hydrophobic colloids? Describe any four preparation methods.
3. Discuss association colloids with example.
4. Explain protection of colloids.
5. With the help of a neat labeled diagram explain methods for purification of
colloids.
6. Explain optical properties of colloids
7. Explain kinetic properties of colloids
8. Explain electrical properties of colloids.
9. Explain DME and its applications.
10. Explain the concept DLVO theory with energy curves. How this theory is
applied in stabilizing the colloidal dispersion.
11. What are association colloids? Mention the mechanism of formation of
micelles with suitable example.
Short Answers (02 Marks)
1. State and explain Hardy schulze rule
2. What is craft point?
3. Define and classify colloids.
4. What are association colloids?
5. What is gold number?
6. What is Tyndall effect
7. What is zeta potential? Give example.
8. What is nernst potential? Give example.
9. What is electro osmosis and electrophoresis?
10. What is streaming potential?
11. Explain the term colloid and mention its applications.
12. Explain condensation method of preparation of colloids.
13. What is meant by protective colloids? Mention one example for the same.
14. Explain Hofmeister series with example
15. List the effect of mixing different types of colloids.
CHAPTER - VIII
COMPLEXATION
Short Essay (05 Marks)
1. Define complex. Classify with example.
2. Explain metal complexes with example.
3. Explain organic molecular complexes with example.
4. Explain inclusion complexes with example.
5. Explain mechanism of formation of hexamine cobalt chloride ligand complex.
6. Explain the mechanism of cyclodextrin drug inclusion complex. Give its
applications
7. Explain the various application of complexation in pharmacy with examples.
8. Enumerate different methods of analysis of complex. Explain continuous
variation method of analysis.
FirstRanker.com - FirstRanker's Choice
QUESTION BANK
PHYSICAL PHARMACEUTICS
II YEAR B. PHARM (RS-4)
CHAPTER - I
DISTRIBUTION LAW
Short essay (05 Marks)
1. State Nernst Distribution law. Give its limitations.
2. Explain the various applications of distribution law in Pharmacy.
3. Explain the effect of molecular association and dissociation on distribution of
solute when added to an immiscible system.
4. State and explain Nernst Distribution law along with its limitations.
5. State Nernst Distribution law. Give its applications in pharmacy.
Short Answer (02 Marks)
1. State Nernst Distribution law.
2. Enlist any four applications of distribution law.
3. Give the limitations of Distribution law.
4. Give Nernst equation for a molecule under going molecular association.
5. Give Nernst equation for a molecule under going molecular dissociation.
CHAPTER ? II
KINETICS AND DRUG STABILITY
Long Essay (10 Marks)
1. Define first order reaction with suitable examples. Deduce an equation for the
determination of rate constant, half life and shelf life for first order reaction
kinetics.
2. Define Zero order reaction with suitable examples. Deduce an equation for the
determination of rate constant, half life and shelf life for zero order reaction
kinetics.
3. Explain chemical degradation of pharmaceutical compounds due to
hydrolysis. Explain its preventive measures.
4. Explain chemical degradation of pharmaceutical compounds due to oxidation.
Explain its preventive measures.
5. Explain chemical degradation of pharmaceutical compounds due to hydrolysis
and oxidation.
6. Enumerate the different methods of determination of order of reaction.
Explain any two methods in detail
7. Define stability studies. Explain in detail how the shelf life of pharmaceutical
product is determined.
8. Give the objectives, salient features, methodology and limitations of
accelerated stability studies.
Short essay (05 Marks)
1. Explain the factors influencing the rate of a reaction.
2. Explain the preventive measures for chemical degradation due to oxidation.
3. Explain the preventive measures for chemical degradation due to hydrolysis.
4. Explain the graphical and half life method for determination of order of
reaction.
5. Define order of reaction. Explain the substitution method for determination of
order of reaction.
6. Define order of reaction. Explain the differential method for determination of
order of reaction.
7. Explain physical degradation of pharmaceuticals and its preventive measures.
8. Explain environmental factors affecting degradation of drugs.
9. Define Arrhenius plot and give its significance in calculation of shelf life.
10. Explain effect of temperature on rate of a reaction.
11. Explain methodology to calculate shelf life of a drug with graphical
representation.
Short answers (02 Marks)
1. Define rate and order of a reaction
2. Define molecularity of reaction with example
3. Define pseudo zero order reaction with example
4. Define pseudo first order reaction with example
5. Enlist different methods of determination of order of reaction
6. Define zero order reaction with suitable example
7. Define first order reaction with suitable example
8. Give expressions for rate constant and half life of zero and first order rate of a
reaction
9. Give expressions for rate constant and half life of first and second order rate
of a reaction
10. How are pharmaceuticals stabilized against hydrolysis
11. How are pharmaceuticals stabilized against oxidation
12. Define physical and chemical degradation with examples
13. Enlist environmental factors affecting degradation of drugs
14. Enlist various applications of chemical kinetics in pharmacy
15. Give Arrhenius equation and its significance
16. Define shelf life of a medicinal product
17. Draw Arrhenius plot and mention its use
18. Derive an expression for the time taken for 90% retention of potency for a
zero order reaction
19. Derive an equation to show that half life is independent of the concentration in
first order reaction
20. Explain why suspension mostly follow zero order
21. Define half life. Explain concept of half life in first order reaction
22. Define half life. What relation does half life bear to initial concentration in
order and second order
23. Describe pharmaceutical specifications of storage conditions for
pharmaceuticals
24. Differentiate between half life and shelf life for a first order reaction
CHAPTER - III
INTERFACIAL PHENOMENA
Long Essay (10 Marks)
1. Define Surface tension. Explain the principle involved in determination of
surface tension by capillary rise method. Give its limitations.
2. Define Adsorption isotherm. Explain Freundlich and Langmuir adsorption
Isotherms
3. Define Adsorption isotherms. Explain the behavior of various types of
adsorption isotherms with example.
4. Define and classify amphiphiles. Explain the mechanistic role of amphiphiles
in Pharmacy.
Short essay (05 Marks)
1. Give the principle and working of Dunouy?s tensiometer.
2. Explain Freundlich and BET equation with examples.
3. Explain contact angle and its applications in pharmacy.
4. Define HLB and explain Griffins scale.
5. Explain different methods to determine HLB of a surfactant.
6. Explain in detail spreading coefficient with relevant equations.
7. Explain the phenomena of wetting and detergency.
8. Explain the formation of soluble monolayer of an amphiphile.
9. Explain the electrical double layer of an interface.
Short Answer (02 Marks)
1. Define Surface tension and interfacial tension.
2. Enumerate methods to determine Surface tension.
3. Enumerate methods to determine Interfacial tension
4. Give BET equation
5. Define adsorption isotherm.
6. Define Contact angle
7. Define HLB and mention any two applications
8. Define Spreading coefficient
9. Relate contact angle with miscibility
10. Define amphiphile
11. Define CMC
12. What are micelles? Give its structure
13. Give Gibb?s adsorption equation
14. Define Nernst Potential
15. Define Zeta potential.
16. List out wetting agents. Describe any one method for determination of wetting
17. Explain the concept of surface tension
18. What is meant by surface excess? Write its applications in pharmacy
19. Classify surfactants based on its applications
20. Define positive adsorption. Give two examples
21. Enumerate applications of amphiphiles in pharmacy
CHAPTER - IV
DIFFUSION AND DISSOLUTION
Short essay (05 Marks)
1. Explain steady state diffusion
2. State and explain Fick?s first and second law of diffusion.
3. Explain different diffusion cell apparatus
4. Explain various factors affecting rate of dissolution of drugs with examples.
5. Explain the mechanism of dissolution of tablets
6. Define dissolution? Explain Noyes Whitney equation
7. State and derive Hixon Crowell cube root law
8. Explain various dissolution apparatus
9. Write a note on assembly of different diffusion apparatus
Short answer (02 Marks)
1. Define Diffusion. Enlist types of diffusion.
2. Give Diffusion equation and explain the terms.
3. State Fick?s first law with equation.
4. Define flux
5. Explain sink condition.
6. Define steady state diffusion
7. Define Diffusion and Dissolution
8. Enlist any four factors affecting dissolution of drugs
9. State Fick?s second law with equation
10. Give Noyes Whitney equation and its terms.
CHAPTER - V
RHEOLOGY
Long Essay (10 Marks)
1. Define and explain Non Newtonian flow of liquids
2. Define Newtonian flow of liquids. Explain shear thinning system of liquids
3. Define Thixotropy. Explain different methods for its determination and give
its application in pharmacy.
4. Define the mechanism of thixotropy and give its applications in pharmacy.
5. Define Viscosity. Classify different viscometers with examples. With the help
of neat diagram explain the principle and working of any one single point
viscometer.
6. Define Viscosity. Classify different viscometers with examples. With the help
of neat diagram explain the principle and working of any one multipoint
viscometer.
7. With the help of neat diagram explain the working principle of Cup & bob and
Cone & plate viscometer with its advantages and disadvantages.
Short Essay (05 Marks)
1. Explain the Newtonian system of flow with examples
2. Explain Plastic and dilatant flow of liquids
3. Discuss plastic and pseudoplastic system of flow
4. Explain shear thickening system with examples
5. Explain the mechanism of thixotropy with examples
6. Explain the methods to determine the thixotropic behavior of liquids.
7. Explain the principle of cup & bob viscometer
8. Explain the principle of Ostwald?s viscometer
9. Explain the physical stability if suspension.
10. Explain the different methods to evaluate the stability of suspensions.
Short Answer (02 Marks)
1. Define Rheology. Give any two applications
2. Describe a Rheogram and Rheopexy
3. What is yield value? Give its applications
4. Define dilatancy with examples
5. Define Newton?s law of flow with equation
6. Give examples for plastic and pseudoplastic system of flow
7. What is Negative thixotropy
8. What are Bulges and Spurs
9. Explain Bulges with example.
10. Explain Spurs with example.
11. Define Viscosity along with its units of expressions
12. What is plug flow? How do you overcome it.
13. Define microemulsions and multiple emulsions
14. Draw flow curve for anti-thixotropy flow and explain its mechanism.
15. Explain the terms shear thinning and shear thickening system. Give example
for each type of material.
CHAPTER - VI
MICROMERITICS
Short answers (05 Marks)
1. State Edmundson?s equation
2. State stokes law
3. Explain frequency distribution curve
4. Explain normal distribution curve
5. Explain percent log normal distribution curve
6. What is polydisperse system
7. What are equivalent diameters? Explain martins diameter
8. Explain ferret diameter and projected diameter
9. What is particle size distribution and particle number
10. What is quantasorb. Explain its principle
11. What are fundamental properties? Give examples
12. What is bulk density ant true density
13. Define angle of repose. Write its significance
14. What is void volume and porosity
15. What is granular density and true density
16. What is compressibility index
17. What is rate of flow of powder and explain carr?s index
18. Give packaging arrangement of powders
19. Define volume-surface mean diameter. Give the equation for its calculation.
20. Define shape factor. What is its importance in micromeritics?
21. List four methods to improve the flow properties of granules and powders.
22. List the ways to characterize a powder
Short Essay (05 Marks)
1. How do you represent particle size distribution
2. Enumerate methods to determine the particle size. Explain any two methods
to determine the particle size
3. With the help of neat diagram explain Andreason?s pipette method to
determine the particle size
4. With the help of neat diagram explain principle and working of coulter
counter method to determine the particle size
5. What is specific surface area? How is it measured by air permeability
method
6. What are derived properties of powders? Explain any two
7. Define angle of repose. Explain the method to determine the same
8. Explain porosity. Give its applications in pharmacy
9. Enumerate different methods of determination of true density and explain
any one.
10. List different types of densities of powder/granules. Write the experimental
method for the determination of any one of them.
CHAPTER -VII
COLLOIDS
Long Essays (10 Marks)
1. Discuss the electrical properties and kinetic properties of colloids
2. Discuss the optical and electrical properties of colloids.
3. Discuss the kinetic and optical properties of colloids.
4. What are colloids? Give example. Explain any four methods of preparation of
different types of colloids.
5. Explain different methods of preparation and purification of colloids.
6. Explain different purification methods and protection of colloids.
Short Essays (05 Marks)
1. What are colloids? Classify the colloids. Differentiate between different types
of colloids.
2. What are hydrophobic colloids? Describe any four preparation methods.
3. Discuss association colloids with example.
4. Explain protection of colloids.
5. With the help of a neat labeled diagram explain methods for purification of
colloids.
6. Explain optical properties of colloids
7. Explain kinetic properties of colloids
8. Explain electrical properties of colloids.
9. Explain DME and its applications.
10. Explain the concept DLVO theory with energy curves. How this theory is
applied in stabilizing the colloidal dispersion.
11. What are association colloids? Mention the mechanism of formation of
micelles with suitable example.
Short Answers (02 Marks)
1. State and explain Hardy schulze rule
2. What is craft point?
3. Define and classify colloids.
4. What are association colloids?
5. What is gold number?
6. What is Tyndall effect
7. What is zeta potential? Give example.
8. What is nernst potential? Give example.
9. What is electro osmosis and electrophoresis?
10. What is streaming potential?
11. Explain the term colloid and mention its applications.
12. Explain condensation method of preparation of colloids.
13. What is meant by protective colloids? Mention one example for the same.
14. Explain Hofmeister series with example
15. List the effect of mixing different types of colloids.
CHAPTER - VIII
COMPLEXATION
Short Essay (05 Marks)
1. Define complex. Classify with example.
2. Explain metal complexes with example.
3. Explain organic molecular complexes with example.
4. Explain inclusion complexes with example.
5. Explain mechanism of formation of hexamine cobalt chloride ligand complex.
6. Explain the mechanism of cyclodextrin drug inclusion complex. Give its
applications
7. Explain the various application of complexation in pharmacy with examples.
8. Enumerate different methods of analysis of complex. Explain continuous
variation method of analysis.
9. Enumerate different methods of analysis of complex. Explain solubility
method of analysis.
10. Enumerate different methods of analysis of complex. Explain distribution
method of analysis.
11. Enumerate different methods of analysis of complex. Explain pH titration
method of analysis.
12. Explain Werner?s postulates with the help of a suitable example.
Short Answers (02 Marks)
1. What are complexes? Give examples.
2. Write importance of complexation in pharmacy.
3. Two applications of inclusion complexes.
4. What is chelating agent? Give its uses.
5. What are clathrates?
6. Enumerate different methods of analysis of complex.
7. What are channel type complex? Give example
8. What are Quinhydrine complex? Give example
9. What are Inclusion complex? Give example
10. What are Picric acid complex? Give example
11. Explain the principle involved in the method of pH titration in complexation
analysis.
CHAPTER - IX
ANALYTICAL TECHNIQUES
Short Answers (02 Marks)
1. Give any four applications of DSC analytical technique.
2. Give any four applications of SEM analytical technique.
3. Give any four applications of TEM analytical technique.
4. Give any four applications of X-Ray crystallography analytical technique.
5. Give any four applications of X-Ray diffraction analytical technique.
6. Define crystalline and amorphous compound.
FirstRanker.com - FirstRanker's Choice
This post was last modified on 02 March 2020