Important Question on Solubilization for BPharmacy 4th Semester Define Wetting. What are its applications? How surfactants are capable of wetting of powder. Define contact angle. Write its various values ranging from 0° to 180°. Define critical surface tension. Give its application. Define solubilization. Explain process of micelles solubilization with labelled diagram. 1. Define Wetting. What are its applications? Wetting Phenomena In industry, large quantities of powders such as talc or charcoal are added to water. These powders do not get wetted properly in spite of their higher densities than water,…
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Adsorption Phenomenon, Adsorptions Isotherm Physical Pharmacy II Important Questions
Important Questions: Define Adsorption. Difference between physical and chemical adsorption. Explain how solid surfaces offer a site for adsorption of gases & dissoluted solute through concept of surface tension. Give thermodynamic considerations for adsorption process. Define adsorption isotherm. Explain Freundlich isotherm with equation & plot. What are the factors which affect adsorption of solute molecules from its solution? Comment : Adsorption is surface phenomenon & absorption is internal phenomenon. Explain positive and negative adsorption with example. Define desorption. 1. Define Adsorption. Difference between physical and chemical adsorption. Adsorption…
Read MoreHLB Scale, Detergency – Surface and Interfacial phenomenon
Some Important Questions from Surface and Interfacial Phenomenon as per B Pharmacy PCI Pattern are: Who introduced the HLB concept and define HLB scale? Draw HLB scale with values of various surfactants along with examples. Enumerate various formulas for calculation HLB values. Explain RHLB (Required HLB). What are the various steps involved in detergency. Explain it with flow chart diagram. Write a detailed note on HLB and give its two limitations. Questions with Solutions: 1. Who introduced the HLB concept and define HLB scale? Since several applications are…
Read MoreSurface active agent – Physical Pharmacy Important Questions
Important Questions: Define surfactants. Define CMC (critical miscelleconcentration). Explain the mechanism of formation of micelles with diagram. Classify surfactants with suitable examples. Give medical applications of surfactants. Give pharmaceutical applications of surfactants. Explain how cationic amphiphiles posses antibacterial activity against gram negative organisms. Explain how amphiphiles above CMC decrease effectiveness of hexylresorcinol towards pinworms. Solutions: 1. Define surfactants. Molecules and ions that are adsorbed at the interface are termed as surface active agents or surfactants. In the physical sense, surface active agents are defined as substances which preferentially…
Read MoreDiseases of Joints and Bones Pharmacy Notes
Here you see well designed learning notes. These notes are very useful in Pharmacy Education and MBBS education. You can download these image for free. Follow our Post Updates here. Subscribe to HK Technical by Email. Like our Facebook page to get daily update on Facebook. TechnicalHarkeshHKJoin our Telegram channel to get daily updates on Telegram. HK_TechnicalFollow us on telegram to see our daily content on Instagram. TechnicalHarkeshHKFor Any Query you can contact us on Instagram or Facebook Page. . Diseases of Joints Diseases of Bones
Read MoreMeasurement of Surface & Interfacial Tension Important Questions Physical Pharmacy
Important Questions on Measurement of Surface & Interfacial Tension Physical Pharmacy Important Questions: Explain DuNouy Ring Method for determination of surface tension and interfacial tension. Give equation involved in this method. Explain Drop Weight and Drop Count Method for determination of surface tension. Explain Wilhelmy Plate Method for determination of Surface & Interfacial Tension. Explain Spinning Drop method for determination for Interfacial Tension. Explain Maximum bubble pressure method for determination of surface tension. Surface Tension Methods: a. Capillary Rise Methodb. Drop Formation Method 1. Drop Weight method 2.…
Read MorePharmacology Drugs Learning Tricks
Here you see well designed learning tricks. These learning tricks are very useful to learn the drugs. Pharmacology is an important subject in Pharmacy Education and MBBS education. You can download these image for free. Follow our Post Updates here. Subscribe to HK Technical by Email. Like our Facebook page to get daily update on Facebook. TechnicalHarkeshHKJoin our Telegram channel to get daily updates on Telegram. HK_TechnicalFollow us on telegram to see our daily content on Instagram. TechnicalHarkeshHKFor Any Query you can contact us on Instagram or Facebook Page. Contents: Steroids Side Effects AntiTubercular…
Read MoreSpreading Coefficient Important Questions – Physical Pharmacy
Spreading Coefficient – Physical Pharmacy Important Questions: Define spreading coefficient. Give application of spreading coefficient. Give derivation of spreading coefficient. Why benzene spreads on water. What are two way by which you can increase spreading coefficient of given organic substance. 1. Define spreading coefficient. Spreading: If a small quantity of an immiscible liquid is placed on the surface of another liquid, it will either spread as a film on surface of the other liquid or remain as a drop or lens. Which of the two applies generally depends on the…
Read MoreRoutes of Drug Administrations – Pharmacology Notes
Routes of Drug Administrations – Pharmacology A route of administration is the path by which a drug, fluid, poison or other substance is brought into contact with the body. Download Table Image Text Preview : Routes of administration Advantages Disadvantages Intravenous (IV) Absorption circumvented; Prompt onset; Suitable for large volumes and for irritating substances Most hazardous (emnolism infection, anaphylaxis); Not suitable for only solutions or poorly hydrophilic substances Intramucular (IM) Absorbtion may be tailored to needs: prompt, from aqueous solution; slow and sustained, From respository formulations. Suitable for moderate volumes,…
Read MorePhysical Pharmacy Assignment Important Questions Interface and Interfacial phase
Physical Pharmacy Assignment Define interface and inter-facial phase. Give applications of interfacial phenomena in pharmacy. Classify interfaces with examples. Define surface tension with units and examples. Give applications of surface tension phenomena. Define cohesive and adhesive forces. Explain concept of surface tension with diagram. Define interfacial tension with units & examples. Explain why interfacial tensions are less than surface tension. Why Surface tension of liquid in zero at critical temperature. Why liquid drop assumes spherical shape when suspended in air. Why interfacial tension of benzene-water is lower than carbontertachloride-water? Explain:…
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