Physical Pharmacy PYQs – Set 162

By Atul Sahu • Physical Pharmacy, Subject Wise PYQs

Physical Pharmacy PYQs – Set 162

Subject : Physical Pharmacy

3221. Suspensions of starch in water exhibit:-

Physical Pharmacy • Rheology + Kinetics & Drug Stability • GPAT 2018

A. Plastic flow B. Pseudoplastic flow C. Dilatant flow D. None of these

3222. What is the viscosity of the resulting liquid after mixing 300 mL of liquid A (η = 1.0 cP) with 200 mL of liquid B (η = 3.4 cP)?

Physical Pharmacy • Rheology + Kinetics & Drug Stability • GPAT 2018

A. 2.2 cP B. 1.4 cP C. 1.6 cP D. 1.8 cP

3223. Suspensions containing a high percentage (about 50% or greater) of small, deflocculated particles would show which flow property?

Physical Pharmacy • Rheology + Kinetics & Drug Stability • GPAT 2018

A. Plastic flow B. Dilatant flow C. Newtonian flow D. Pseudoplastic flow

3224. Materials whose consistency depends on both the duration and rate of shear exhibit which property?

Physical Pharmacy • Rheology + Kinetics & Drug Stability • GPAT 2018

A. Rheopexy B. Thixotropy C. Viscoelasticity D. Plasticity

3225. In a mechanical model of a viscoelastic material with elements in series, the model is termed as

Physical Pharmacy • Rheology + Kinetics & Drug Stability • GPAT 2018

A. Voigt Element B. Creep Element C. Maxwell Element D. Retardation Element

3226. Based on the rheological behavior of fluid, all of the following shows time independent property, except:

Physical Pharmacy • Rheology + Kinetics & Drug Stability • GPAT 2018

A. Anti-thixotropic B. Non-newtonian C. Plastic D. Pseudoplastic

3227. Which of the following protective colloids has high gold number:

Physical Pharmacy • Rheology + Kinetics & Drug Stability • GPAT 2018

A. Tragacanth B. Albumin C. Acacia D. Gelatin

3228. Which of the following type of viscometer is used for the measurement of viscosity of a Newtonian fluid:

Physical Pharmacy • Rheology + Kinetics & Drug Stability • GPAT 2018

A. Cup and bob viscometer B. Pycnometer C. Ostwald viscometer D. Brookfield's viscometer

3229. Which among the following is not the process of drug degradation:

Physical Pharmacy • Rheology + Kinetics & Drug Stability • GPAT 2018

A. Hydrolysis B. Decarboxylation C. Photolysis D. Hemolysis

3230. This given equation represents which law: E = Kk ln(d1/d2)

Physical Pharmacy • Rheology + Kinetics & Drug Stability • GPAT 2018

A. Rittinger’s law B. Kick’s law C. Fick's law D. Bond’s law

3231. While studying solid state physicochemical properties, the packing property of a drug includes

Physical Pharmacy • Solid‑state packing • GPAT 2018

A. Heat capacity B. Solubility C. Refractive index D. Entropy

3232. Which characteristic best defines a crystalline solid?

Physical Pharmacy • States of Matter & Micromeritics • GPAT 2018

A. Diffraction bands B. Geometrical shapes C. Sharp melting point D. All of these

3233. Free flowing powders show a flatter cone and have

Physical Pharmacy • States of Matter + Micromeritics + Surface and Interfacial Tension • GPAT 2018

A. Smaller angle of repose B. Larger angle of repose C. Intermediate angle of repose D. None of the above

3234. The angle of repose is calculated by:

Physical Pharmacy • States of Matter + Micromeritics + Surface and Interfacial Tension • GPAT 2018

A. tan α = Radius/Height B. tan α = 1+ Radius/Height C. tan α = 1- Radius/Height D. tan α = Height/Radius

3235. What is the specific surface area per unit volume (Sv) of spherical particles with a density of 3 gm/cm³ and a volume surface diameter (dvs) of 2.57 μm?

Physical Pharmacy • States of Matter + Micromeritics + Surface and Interfacial Tension • GPAT 2018

A. 7.78 x 10³ cm²/cm³ B. 2.33 x 10³ cm²/cm³ C. 1.55 x 10³ cm²/cm³ D. 1.00 x 10³ cm²/cm³

3236. In a free‑flowing powder, if the bulk density and tapped density are close in value, the Carr index would be:-

Physical Pharmacy • States of Matter + Micromeritics + Surface and Interfacial Tension • GPAT 2018

A. Small B. Medium C. Large D. None

3237. The difference in velocity between two planes of liquid separated by an infinitesimal distance is called:

Physical Pharmacy • States of Matter + Micromeritics + Surface and Interfacial Tension • GPAT 2018

A. Rate of shear B. Rate of flow C. Rate of force D. Shearing stress

3238. The interfacial forces are related to the contact angle by:

Physical Pharmacy • States of Matter + Micromeritics + Surface and Interfacial Tension • GPAT 2018

A. Nernst equation B. Stokes equation C. Young’s equation D. Laplace equation

3239. The addition of Monobasic Potassium Phosphate to the suspended Bismuth Subnitrate particles cause the A to B owing to the C.

Physical Pharmacy • States of Matter + Micromeritics + Surface and Interfacial Tension • GPAT 2018

A. A-negative zeta potential, B-decrease, C-adsorption of the negatively charged phosphate anion B. A-positive zeta potential, B-increase, C-adsorption of the negatively charged phosphate anion C. A-positive zeta potential, B-decrease, C-adsorption of the negatively charged phosphate anion D. A-positive zeta potential, B-decrease, C-adsorption of the positively charged hydrogen anion

3240. Which of the following is a correct expression of average particle size with value of p = 1 i.e. index related to the size of an individual particle and frequency index (f = 2):

Physical Pharmacy • States of Matter + Micromeritics + Surface and Interfacial Tension • GPAT 2018

A. D B. C C. B D. A

Disclaimer for MCQ Quiz
The questions in this MCQ quiz are intended solely for educational purposes. While we strive to ensure accuracy, the information may not always be up-to-date or complete. The creators are not liable for any errors or consequences. Verify any information before relying on it for critical decisions.

इस MCQ क्विज़ के प्रश्न केवल शैक्षिक उद्देश्यों के लिए हैं। हम सामग्री की सटीकता सुनिश्चित करने का प्रयास करते हैं, फिर भी जानकारी हमेशा अद्यतित या पूर्ण नहीं हो सकती। निर्माता किसी भी परिणाम के लिए जिम्मेदार नहीं हैं। कृपया किसी भी महत्वपूर्ण निर्णय से पहले स्वतंत्र रूप से जांचें।
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Physical Pharmacy PYQs – Set 162

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