WorksheetsPowders & Granules
Total questions: 10
Worksheet time: 5mins
Which of the following best defines a powder as a pharmaceutical dosage form?
A liquid containing dissolved drug
Finely divided particles intended for internal or external use
A compressed solid dosage form
A semi-solid preparation for topical use
Granules differ from powders mainly because granules:
Are smaller than powder particles
Are liquid preparations
Have better flow properties
Cannot be used to make tablets
Which of the following is a common reason for preparing granules instead of powders?
To reduce drug solubility
To prevent segregation
To increase hygroscopicity
To improve taste masking only
In geometric dilution, the mixing process should begin with:
The ingredient with the largest volume
The diluent
The drug with the smallest bulk
All ingredients mixed together at once
Which sequence correctly represents geometric dilution?
x + 2x + 3x + 4x
x + x + 2x + 4x + … until complete
x + 3x + 5x
x + all remaining diluent at once
Hygroscopic powders are best described as substances that:
Absorb moisture from air but do not dissolve in it
Instantly liquefy upon exposure to air
Evaporate easily at room temperature
Lose water to the atmosphere
Which of the following is an example of a deliquescent substance?
Menthol
Talc
Starch
Calcium chloride
Which powder characteristic makes it unsuitable for hard gelatin capsules?
Poor flow property
Low dose strength
Hygroscopic nature
Fine particle size
Hard gelatin capsules are composed of:
One-piece flexible shell
Two-piece shell consisting of body and cap
Plastic shell only
Sugar-coated shell
Which capsule size is the largest?
0
00
000
1
