Which of the following chemicals is known as a corrosive agent?

Nitric acid is classified as a corrosive agent due to its ability to severely damage or destroy living tissue and other materials upon contact. Corrosive substances can react with skin, metal, and other substances, leading to significant injuries or destruction of materials.

The properties of nitric acid contribute to its corrosive nature; it is a strong oxidizing agent and can produce heat and gas upon reaction with organic materials, which further enhances its potential for causing damage. This distinct characteristic sets nitric acid apart from the other chemicals listed.

Sodium bicarbonate, while it has many applications in neutralizing acids, is not a corrosive agent; it is a mild alkaline substance. Chlorine gas, although hazardous and irritating, primarily acts as a toxic agent rather than a corrosive one. Similarly, carbon dioxide is not corrosive; it is a common gas that poses other health risk considerations but does not cause corrosion. Understanding the properties of these chemicals allows peace officers to recognize the specific hazards associated with them, particularly when responding to emergencies involving hazardous materials.