Download SGBAU B-Pharma 2019 Summer 4th Sem Sem IV Physical Pharmaceutics II New Question Paper

Download SGBAU (Sant Gadge Baba Amravati university) B.Pharma 2019 Summer (Bachelor of Pharmacy) 4th Sem Sem IV Physical Pharmaceutics II New Previous Question Paper

This post was last modified on 10 February 2020

Download Document

SGBAU B.Pharm Last 10 Years 2010-2020 Question Papers || Sant Gadge Baba Amravati university

FirstRanker.com

Physical Pharmaceutics - I : BP 403 T

Time : Three Hours Max. Marks : 75

--- Content provided by FirstRanker.com ---

Notes: 1. Answer all questions.

2. Assume suitable data wherever necessary.

3. Illustrate your answer necessary with the help of neat sketches.

MCQ's. 20
1. - dispersions are unstable in the presence of even small concentration of electrolytes.
  1. a) Lyophilic
  2. b) Hydrophilic
  3. c) Amphiphilic
  4. d) Lyophobic
2. The size of dispersed phase particles of colloidal dispersions is ----------.
  1. a) Less than 1 nm
  2. b) Greater than 5 um
  3. c) 1nm to 0.5um
  4. d) Greater than 0.5 pm
3. The protective property of hydrophilic colloids is expressed in terms of -----------.
  1. a) Gold number
  2. b) Lyotropic series
  3. c) HLB value
  4. d) All of the above
4. The ability of amphiphilic colloids to increase the solubility of normally insoluble materials in solution is known as ---------- :
  1. a) Peptization
  2. b) Sensitization
  3. c) Protection
  4. d) Micellar solubilization
5. Ostwald's viscometer is a ---------- viscometer.
  1. a) Capillary
  2. b) Falling sphere
  3. c) Cone and plate
  4. d) Cup and bob
6. Bingham bodies are ---------- in nature.
  1. a) Shear thickening
  2. b) Dilatant
  3. c) Shear thinning
  4. d) Newtonian
7. The ---------- is a dimensionless quantity.
  1. a) Stress
  2. b) Rate of shear
  3. c) Strain
  4. d) Elastic modulus
8. Deflocculated suspensions containing high concentration of small particles exhibit ----- flow.
  1. a) Newtonian
  2. b) Plastic
  3. c) Pseudo-Plastic
  4. d) Dilatant
9. The diameter of a sphere having same sedimentation rate as asymmetrical particle under question is known as -------- diameter.
  1. a) Surface
  2. b) Volume
  3. c) Projected
  4. d) Stoke's
10. The true density of particles can be measured by --------- method.
  1. a) Mercury displacement
  2. b) Liquid displacement
  3. c) Helium penetration
  4. d) All of the above
11. The ratio of void volume to bulk volume is known as ----------.
  1. a) Porosity
  2. b) Compressibility
  3. c) Bulkiness
  4. d) Bulk density
12. The theoretical porosity of powder containing uniform spheres is -------- in the closest pack.
  1. a) 20%
  2. b) 74%
  3. c) 48%
  4. d) 52%
13. The velocity of suspended particles is inversely proportional to ----- :
  1. a) Density of dispersed phase
  2. b) Density of dispersion medium
  3. c) Radius of dispersed phase particles
  4. d) Viscosity of dispersion medium
14. The velocity of sedimentation of dispersed particles is ---------- in flocculated suspensions than deflocculated.
  1. a) Slower
  2. b) Faster
  3. c) Same
  4. d) None of a,b,c
15. Surfactants form -------- film at o/w interface in an emulsion.
  1. a) Protective
  2. b) Monomolecular
  3. c) Multimolecular
  4. d) Particulate
16. ---------- is a reversible incompatibility observed in emulsions.
  1. a) Breaking
  2. b) Phase inversion
  3. c) Creaming
  4. d) Coalescence
17. The rate of ---------- order reactions is proportional to the concentration.
  1. a) Zero
  2. b) Pseudo
  3. c) First
  4. d) Second
18. The unit for rate constant of a -------- order reaction is second^-1.
  1. a) Zero
  2. b) Pseudo
  3. c) First
  4. d) Second
19. Classic-collision theory explains the effect of ---------- on rates of reactions.
  1. a) pH
  2. b) Temperature
  3. c) Catalysis
  4. d) Humidity
20. The half-life in a zero-order reaction is described by ---------- ;
  1. a) t_1/2 = 2’;"0
  2. b) t_1/2 = %
  3. c) %:i 9
  4. d) A;K'OA
Long answer questions any two. 20
1. a) Classify the flow properties of liquids with relevant equations and rheograms. Add a note on Thixotropy.
2. b) Describe the derived properties of powders in details.
3. c) Define rate, order & molecularity of a reaction & derive equation for first order reaction.
Short answer Questions any seven. 35
1. a) Write a note on expiration dating of pharmaceutical dosage forms.
2. b) Describe any two methods of determination of particle size.
3. c) Write in brief about equivalent spherical diameters.
4. d) Give an account of optical properties of colloids.
5. e) Write a note on protective colloid action.
6. f) Discuss Bulges & spurs with relevant examples.
7. g) Enlist the instabilities in emulsions and discuss any two in details.
8. h) Write a note on sedimentation parameters.
9. i) Discuss Arrhenius theory in brief.

FirstRanker.com

--- Content provided by FirstRanker.com ---

This download link is referred from the post: SGBAU B.Pharm Last 10 Years 2010-2020 Question Papers || Sant Gadge Baba Amravati university

This post was last modified on 10 February 2020

Get the MBBS Question Bank Android App

Download SGBAU B-Pharma 2019 Summer 4th Sem Sem IV Physical Pharmaceutics II New Question Paper

Share This Post:

Share This Post: