Answer: fatty acids.
- A mineral acids
- B fatty acids
- C amino acids
- D nucleic acids
Correct answer: B. fatty acids
Explanation: Soaps are made by the alkaline hydrolysis (saponification) of fats, which are esters of fatty acids.
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.