Pharmacy Practice MCQ, in this article we will solve, Practice MCQ under subject physical pharmaceutics II. Read following article for your reference.
- What is the significance of particle shape in pharmaceuticals?
- a) It affects the taste of the medication
- b) It influences the flow and packing properties of powders
- c) It changes the color of the medication
- d) It determines the odor of the medication
- Which method is commonly used to determine particle shape?
- a) Spectrophotometry
- b) Microscopy
- c) Gas chromatography
- d) Colorimetry
- What is specific surface area?
- a) The total surface area of a solid per unit mass
- b) The surface area of the largest particle
- c) The surface area of the smallest particle
- d) The surface area of all particles combined
- Why is specific surface area important in pharmaceuticals?
- a) It affects the dissolution rate and bioavailability of drugs
- b) It changes the color of the medication
- c) It influences the taste of the medication
- d) It determines the odor of the medication
- Which technique measures specific surface area by adsorption of a gas?
- a) Laser diffraction
- b) BET (Brunauer-Emmett-Teller) method
- c) Dynamic light scattering
- d) Microscopy
- What is the BET method used for?
- a) Determining particle shape
- b) Measuring specific surface area
- c) Analyzing particle color
- d) Measuring particle size
- What is permeability in the context of powders?
- a) The ability of particles to resist deformation
- b) The ability of particles to flow freely
- c) The ease with which a fluid can pass through a porous material
- d) The ability of particles to dissolve in a liquid
- Why is permeability important in tablet formulation?
- a) It affects the dissolution rate of the tablet
- b) It influences the taste of the tablet
- c) It changes the color of the tablet
- d) It determines the odor of the tablet
- Which method is used to determine the permeability of powders?
- a) Microscopy
- b) Permeametry
- c) Spectrophotometry
- d) Gas chromatography
- What is adsorption in the context of particle analysis?
- a) The process of dissolving particles in a liquid
- b) The process of particles adhering to the surface of a solid or liquid
- c) The process of particles changing color
- d) The process of particles melting
- Which technique is commonly used to study adsorption properties of particles?
- a) BET (Brunauer-Emmett-Teller) method
- b) Laser diffraction
- c) Microscopy
- d) Colorimetry
- What does a high specific surface area indicate about a material?
- a) It has a small total surface area
- b) It has a large total surface area relative to its mass
- c) It has a small particle size
- d) It has a high density
- What is the significance of measuring particle shape in powder technology?
- a) It affects the chemical reactivity of the particles
- b) It influences the flowability and compaction of powders
- c) It changes the color of the particles
- d) It determines the taste of the particles
- Which property is measured by gas adsorption techniques?
- a) Particle color
- b) Particle size
- c) Specific surface area
- d) Particle density
- What is the effect of particle shape on the flow properties of powders?
- a) Irregular shapes improve flowability
- b) Spherical shapes improve flowability
- c) Particle shape has no effect on flowability
- d) Flowability is only influenced by particle color
- Why is specific surface area important for catalytic activity?
- a) It affects the color of the catalyst
- b) It provides more active sites for reactions to occur
- c) It changes the odor of the catalyst
- d) It influences the density of the catalyst
- Which method is commonly used to determine the specific surface area of porous materials?
- a) BET (Brunauer-Emmett-Teller) method
- b) Laser diffraction
- c) Microscopy
- d) Spectrophotometry
- What is the relationship between particle size and specific surface area?
- a) Larger particles have greater specific surface area
- b) Smaller particles have greater specific surface area
- c) Particle size does not affect specific surface area
- d) Specific surface area is only influenced by particle color
- What is the role of adsorption in drug delivery systems?
- a) To enhance the color of the drug
- b) To control the release rate of the drug
- c) To change the taste of the drug
- d) To increase the density of the drug
- Which property of powders is assessed using a permeameter?
- a) Color
- b) Size
- c) Permeability
- d) Solubility
- What is the impact of high specific surface area on the dissolution rate of drugs?
- a) It decreases the dissolution rate
- b) It increases the dissolution rate
- c) It has no effect on the dissolution rate
- d) It changes the color of the drug
- Which technique provides information about both particle size and specific surface area?
- a) BET method
- b) Laser diffraction
- c) Dynamic light scattering
- d) Microscopy
- What is the effect of particle shape on the packing density of powders?
- a) Irregular shapes result in higher packing density
- b) Spherical shapes result in higher packing density
- c) Particle shape does not affect packing density
- d) Packing density is only influenced by particle color
- Why is it important to determine the permeability of granular materials?
- a) To assess their flow properties
- b) To evaluate their chemical reactivity
- c) To determine their color
- d) To measure their solubility
- Which method measures the specific surface area based on gas adsorption-desorption isotherms?
- a) Laser diffraction
- b) BET (Brunauer-Emmett-Teller) method
- c) Dynamic light scattering
- d) Microscopy
- What is the significance of adsorption isotherms in particle analysis?
- a) They provide information about the color of particles
- b) They describe the relationship between the amount of adsorbate and pressure at constant temperature
- c) They measure the size of particles
- d) They indicate the chemical composition of particles
- Which factor can influence the specific surface area of a material?
- a) Particle shape
- b) Particle size
- c) Particle porosity
- d) All of the above
- What is the role of particle shape in the compaction behavior of powders?
- a) It affects the color of the compacted material
- b) It influences the density and mechanical strength of the compact
- c) It changes the taste of the compacted material
- d) It determines the solubility of the compacted material
- Which property is directly related to the rate of adsorption in porous materials?
- a) Color
- b) Size
- c) Specific surface area
- d) Solubility
- What does a high permeability indicate about a material?
- a) It has a high resistance to fluid flow
- b) It has a low resistance to fluid flow
- c) It has a high color variation
- d) It has a low specific surface area
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