🔔 Get Instant Government Pharmacist Exam & Recruitment Alerts:
🧪 High-Yield Pharmaceutics MCQ Practice Set
Master essential industrial pharmacy, biopharmaceutics, formulation technology, and sterile product questions asked in government recruitment tests.
High-Yield Practice Questions
1. The HLB (Hydrophilic-Lipophilic Balance) value range for water-in-oil (W/O) emulsifying agents is:
(a) 3 to 6
(b) 8 to 16
(c) 7 to 9
(d) 13 to 15
Correct Answer: (a) 3 to 6
Explanation: Griffin’s HLB scale assigns values 3-6 for W/O emulsifiers (lipophilic), 7-9 for wetting agents, and 8-16 for O/W emulsifiers (hydrophilic).
2. Which test organism is officially used for the biological indicator validation of steam sterilization (Autoclaving)?
(a) Bacillus subtilis
(b) Geobacillus stearothermophilus
(c) Clostridium tetani
(d) Pseudomonas aeruginosa
Correct Answer: (b) Geobacillus stearothermophilus
Explanation: Spores of Geobacillus stearothermophilus possess high heat resistance and are the official biological indicator for moist heat sterilization at 121°C. Bacillus atrophaeus (subtilis) is used for dry heat and ethylene oxide sterilization.
3. The Limulus Amebocyte Lysate (LAL) test is used in parenteral formulations to detect:
(a) Particulate matter
(b) Bacterial endotoxins (pyrogens)
(c) Heavy metal impurities
(d) Sterility failures
Correct Answer: (b) Bacterial endotoxins (pyrogens)
Explanation: The LAL reagent derived from the horseshoe crab (Limulus polyphemus) forms a gel clot in the presence of lipopolysaccharides (endotoxins) from gram-negative bacteria.
🔗 Explore More MCQs
© 2026 Sarkari Pharma (sarkaripharma.com). All rights reserved. Independent educational guidance portal.