Q. Consider the following:

1. Paraquat
2. Glyphosate
3. Herbicide

Which of the above is/are classified as a Category 2 hazardous chemical by the WHO?
Answer: Only 1
Notes: Paraquat is classified as a Category 2 hazardous chemical by the WHO due to its toxicity and risk of severe health effects upon exposure. Glyphosate, while widely used, is classified differently. Herbicides are a broader category that includes various chemicals used for weed control, but not all are classified as hazardous. Paraquat's severe toxicity leads to strict regulations in many countries.