Which of the following substances is known for its use as a solvent, disinfectant, and insecticide but is also a systemic poison?

The correct answer is carbon disulfide. Carbon disulfide is a colorless, volatile liquid that is widely used as a solvent in various industrial applications. It is particularly effective in dissolving many organic compounds, making it valuable in the production of viscose rayon, cellophane, and other synthetic fibers. Additionally, carbon disulfide has disinfectant properties and has been used in some agricultural applications as an insecticide, particularly for pest control in farming.

Despite its industrial usefulness, carbon disulfide is also recognized as a systemic poison. Exposure can lead to serious health effects, impacting the central nervous system and other bodily functions. Symptoms of exposure can include headaches, dizziness, and in severe cases, more critical health issues.

This combination of applications and toxicity underscores the importance of handling carbon disulfide with care, adhering to safety guidelines, and using personal protective equipment (PPE) to minimize health risks in the workplace.