Roll No.
Total No. of Questions : 22
Total No. of Pages : 02
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B.Pharma (2017 Batch) (Sem.-4)
PHYSICAL PHARMACEUTICS-II
Subject Code : BP-403T
M.Code: 75845
Time: 3 Hrs.
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Max. Marks : 75
INSTRUCTIONS TO CANDIDATES :
- SECTION-A is COMPULSORY consisting of TEN questions carrying TWO marks each.
- SECTION-B contains THREE questions carrying TEN marks each and students have to attempt any TWO questions.
- SECTION-C contains NINE questions carrying FIVE marks each and students have to attempt any SEVEN questions.
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Answer briefly :
- What is protective colloid?
- What is meant by Nernst potential?
- Define Kinematic viscosity and its units.
- What is the porosity when solid particles are packed closely?
- What is angle of repose?
- Give two examples of photolytic degradation of drugs.
- What is pseudo zero order reaction?
- What is yield value and in which types of systems it is observed?
- What is specific surface area and its importance?
- Write the equation for calculating the half life for a drug following first order degradation kinetics.
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SECTION-B
- Differentiate between Newtonian and Non-Newtonian systems giving suitable examples.
- Differentiate between flocculated and deflocculated suspensions. Discuss the strategies used for reducing settling of particles in suspensions.
- Explain the use of accelerated stability testing of pharmaceutical products using temperature as a stress condition.
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SECTION-C
- Write a note on prevention of hydrolytic degradation in pharmaceutical products.
- Explain particle shapes and their influence on packing.
- Briefly explain the differences between conventional and microemulsions.
- Enumerate the methods used for determination of surface area of powders. Discuss any one method in detail.
- Write a note on elastic deformation of solids.
- Discuss the HLB method of preparing emulsions.
- Classify colloids and mention their properties.
- What is a falling sphere viscometer? Mention its applications and limitations.
- Briefly discuss the influence of dielectric constant on drug stability.
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NOTE: Disclosure of Identity by writing Mobile No. or Making of passing request on any page of Answer Sheet will lead to UMC against the Student.
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This download link is referred from the post: PTU B.Pharma 4th Semester Last 10 Years 2011-2021 Previous Question Papers|| Punjab Technical University