Which product is described as least toxic to humans in the material?

Which product is described as least toxic to humans in the material?

• A. Methyl chloride
• B. MULTIHION
• C. Ortho boric acid
• D. Oil soluble formulation

Answer: (B)

The key idea is comparing how substances pose risk to people based on how easily they enter the body and how strong the resulting effects are. Methyl chloride is a highly volatile gas that can be dangerous if inhaled, so its acute toxicity to humans is high. Ortho boric acid has relatively low acute toxicity, but it isn’t risk-free—ingesting or large exposures can cause irritation or GI upset. Oil soluble formulations often contain petroleum-based carriers that can irritate skin and eyes and may increase absorption, raising potential hazards. MULTIHION is described as the least toxic to humans because its formulation minimizes acute exposure risks, using a safer active ingredient and a less hazardous carrier, leading to lower potential for harm under typical use. Always follow label safety instructions to further reduce risk.

The key idea is comparing how substances pose risk to people based on how easily they enter the body and how strong the resulting effects are. Methyl chloride is a highly volatile gas that can be dangerous if inhaled, so its acute toxicity to humans is high. Ortho boric acid has relatively low acute toxicity, but it isn’t risk-free—ingesting or large exposures can cause irritation or GI upset. Oil soluble formulations often contain petroleum-based carriers that can irritate skin and eyes and may increase absorption, raising potential hazards. MULTIHION is described as the least toxic to humans because its formulation minimizes acute exposure risks, using a safer active ingredient and a less hazardous carrier, leading to lower potential for harm under typical use. Always follow label safety instructions to further reduce risk.