Which statement best describes class 6 toxic substances and their health effects?

Which statement best describes class 6 toxic substances and their health effects?

• A. They are only liquids
• B. They do not pose any health risk
• C. They are always non-toxic
• D. They can be poisonous and harmful to health, and exposure in large amounts could be fatal

Answer: (D)

Toxic substances in Class 6 are chemicals whose health effects depend on dose and how you’re exposed to them. The statement that best fits this concept says they can be poisonous and harmful to health, and exposure in large amounts could be fatal. That captures the core idea: toxicity is about potential harm, and serious outcomes, including death, are possible with sufficient exposure. It’s not limited to a specific form—these substances can be solids, liquids, or gases, and their danger isn’t negated by any one property. In practice, this means handling them requires strict precautions, proper labeling and storage, personal protective equipment, good ventilation, spill control, and rapid medical response if exposure occurs.

Toxic substances in Class 6 are chemicals whose health effects depend on dose and how you’re exposed to them. The statement that best fits this concept says they can be poisonous and harmful to health, and exposure in large amounts could be fatal. That captures the core idea: toxicity is about potential harm, and serious outcomes, including death, are possible with sufficient exposure. It’s not limited to a specific form—these substances can be solids, liquids, or gases, and their danger isn’t negated by any one property. In practice, this means handling them requires strict precautions, proper labeling and storage, personal protective equipment, good ventilation, spill control, and rapid medical response if exposure occurs.