Compressed gases, aerosols, liquefied gases, and dissolved gases are all examples of which class of dangerous goods?

• A. Class 2 Dangerous Goods
• B. Class 3 Dangerous Goods
• C. Class 4 Dangerous Goods
• D. Class 5 Dangerous Goods

Answer: (A)

The key idea is how dangerous goods are sorted by hazard type, here focusing on gases. Compressed gases, aerosols, liquefied gases, and dissolved gases share the characteristic of existing as gases or under pressure, which places them in the category designated for gases. In transport regulations, that category is Class 2 Dangerous Goods.

Other classes cover different hazards: for example, Class 3 is flammable liquids, Class 4 covers various flammable solids and self-heating substances, and Class 5 includes oxidizing substances and organic peroxides. Since the items listed are gases, they belong to Class 2, making it the correct choice.