Which of the following is NOT a subcategory of Class 2 dangerous goods?

• A. Toxic Gas
• B. Flammable Gas
• C. Radioactive Material
• D. Non-Flammable Gas

Answer: (C)

Gases are grouped under Class 2, and within that class the subcategories cover different ways gases can be hazardous: flammable gases that can ignite, non-flammable gases that don’t burn but may pose risks like asphyxiation, and toxic gases that can cause health effects if inhaled. The options Toxic Gas, Flammable Gas, and Non-Flammable Gas all fit into these gas-related subcategories, so they are Class 2 classifications. Radioactive Material, on the other hand, is not a gas and is not classified as Class 2; it belongs to Class 7, which covers radioactive substances with their own handling and safety rules. Therefore Radioactive Material is not a subcategory of Class 2.