Q. Which of the following chemicals is used as rodenticide? Answer:
Zinc Sulphide
Notes: Zinc phosphide (ZnS) is used widely as a rodenticide. Upon ingestion, it gets converted to phosphine gas in the body, which is subsequently absorbed into the bloodstream through the stomach and the intestines and gets captured by the liver and the lungs. Phosphine gas produces various metabolic and non-metabolic toxic effects.