Answer: antacids.
- A antibiotics
- B antacids
- C analgesics
- D antiseptics
Correct answer: B. antacids
Explanation: These H₂-receptor blockers reduce stomach acid secretion and act as modern antacids.
The hydrophobic hydrocarbon tail of each soap/detergent molecule dissolves into an oily dirt droplet, while the hydrophilic (ionic) head stays in the surrounding water - trapping the grease inside a micelle that rinses away with water.
Concept context
Drugs and how they interact with biological targets, chemicals in food, and cleansing agents (soaps and detergents) - chemistry applied directly to daily life and healthcare.