Q. In high concentrations, electrolytes destabilize a lyophilic sol by a process termed as :
✅ Correct Answer: (C)
salting out
Physical Pharmaceutics 2 MCQs and Notes
Q. Which one of the following colloids is difficult to prepare?
✅ Correct Answer: (C)
hydrophobic
Q. Protective colloids DO NOT:
✅ Correct Answer: (C)
lower the interfacial tension
Q. Name the type of colloidal dispersion to which electrolytes are normally added in small quantities to stabilize:
✅ Correct Answer: (C)
lyophobic
Q. Surfactant solutions are termed as association colloids when their concentrations are:
✅ Correct Answer: (D)
more than cmc
Q. In the determination of size, shape and structure of colloidal particles, which one of the following CAN NOT be used?
✅ Correct Answer: (D)
ultramicroscope
Q. Thixotropic type of behavior is shown by the gel:
✅ Correct Answer: (A)
bentonite
Q. Sulphur sol is an example of colloidal type:
✅ Correct Answer: (D)
lyophobic
Q. Which of the following DO NOT form colloid spontaneously?
✅ Correct Answer: (C)
lyophobic
Q. Silica gel is an example for the type of gel:
✅ Correct Answer: (C)
rigid