Q. The storage directions on a parenteral solution specify ‘store in a cool place’. This may be stored in:
✅ Correct Answer: (B)
a refrigerator at 15°C
Physical Pharmaceutics 2 MCQs and Notes
Q. During storage, crystal growth is observed in a suspension due to:
✅ Correct Answer: (B)
fluctuations in the ambient temperatures
Q. Which one of these methods is the MOST effective in preventing the rate of hydrolysis?
✅ Correct Answer: (C)
removal of water
Q. For the validity of accelerated stability studies of solution dosage form, the energy of activation should be in the range of (in units of kcal/mole).
✅ Correct Answer: (B)
11 to 30
Q. Which one of the following is primarily NOT a chemical decomposition?
✅ Correct Answer: (D)
volatilization
Q. Aspirin undergoes decomposition in a formulation. It can be prevented by:
✅ Correct Answer: (D)
suppressing its solubility
Q. Which of the following reactions is observed in the degradation of ampicillin?
✅ Correct Answer: (B)
hydrolysis
Q. On a product, the label states ‘protect from light’. What type of decomposition does the product undergo?
✅ Correct Answer: (D)
oxidation
Q. In injections, procaine undergoes the degradation reactions in the following sequence:
✅ Correct Answer: (B)
hydrolysis and decarboxylation
Q. During autoclaving of dextrose solution, a straw colour is observed. It is due to the presence of a substance called:
✅ Correct Answer: (B)
5-hydroxymethylfurfural