Final answer:
Phenolic Compounds are the disinfectants that have a strong scent and leave behind chemical residue, commonly found in household cleaners and hospital disinfectants.
Step-by-step explanation:
The disinfectant that has a strong scent and leaves behind chemical residue is D) Phenolic Compounds. Phenolics are known for their stable, long-acting disinfecting properties that denature proteins and disrupt cell membranes.
These compounds are found in products such as household cleaners and hospital disinfectants, and they are also used to preserve harvested crops. While they are effective, phenolics can leave a strong scent and a residue, which may be undesirable in certain settings.