Answer: Liquid dishwashing detergents.
- A Solid toilet soaps
- B Hair-conditioning creams
- C Liquid dishwashing detergents
- D Powdered laundry soaps
Correct answer: C. Liquid dishwashing detergents
Explanation: Non-ionic detergents carry no ionic charge and are typically the liquid detergents used for dishwashing.
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.