This download link is referred from the post: RTMNU B-Pharm Last 10 Years 2010-2020 Previous Question Papers || Rashtrasant Tukadoji Maharaj Nagpur University
NKT/KS/17/6564
B.Pharm. Semester—V (C.B.S.) Examination
PHARMACEUTICS–V (Physical Pharmacy)
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Paper-1
Time : Three Hours] [Maximum Marks : 80
Note :—(1) Question No. 1 is compulsory.
(2) Attempt any four from remaining questions.
(3) All questions carry equal marks.
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(4) Draw neat labelled diagrams wherever necessary.
(5) Assume suitable data wherever necessary.
(6) Discuss the reaction, mechanism wherever necessary.
(7) Use of electronic calculator, excluding programmable calculator is permitted.
- Attempt any five from following :
- Why does microemulsion appear transparent to eyes ?
- Why surface tension / interfacial tension exists ?
- Define surfactant. Give various Characteristics of surfactant.
- Compare lyophilic and lyophobic colloids.
- Disperse systems are thermodynamically unstable, justify.
- Write in brief about evaluation of suspensions.
- Define angle of repose. Explain effect of particle size on flowability of powders.
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5×4=20
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- Define adsorption isotherm. Explain various types of adsorption isotherms. 10
- Explain electrical diffuse double layer. 5
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- Describe mechanism of droplet stabilization of emulsion. 10
- Explain various detection tests for type of emulsion. 5
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- Discuss methods for determination of particle surface area. 8
- Explain controlled flocculation in formulation and stabilization of suspension. 7
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- Describe viscosity, osmotic pressure and sedimentation properties of colloids and their applicability in molecular weight determination of colloidal material. 15
- Define Critical Micelle Concentration (CMC). Explain phenomenon of micelle formation. Describe various factors affecting micelle formation. 15
- Write short notes on any two :
- Micellar solubilization
- Assessment of shelf life of emulsion
- Stability of colloidal system.
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7.5×2=15
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NXO-12540 2 NKT/KS/17/6564
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This download link is referred from the post: RTMNU B-Pharm Last 10 Years 2010-2020 Previous Question Papers || Rashtrasant Tukadoji Maharaj Nagpur University