AEMCA Practice Exam

What is sulfur mustard?

1. A yellow substance that causes burns and skin blisters

2. A type of nerve agent

3. A chemical used as a pesticide

4. A gas used in riot control

The correct answer is: A yellow substance that causes burns and skin blisters

Sulfur mustard, commonly referred to as mustard gas, is indeed recognized as a yellowish liquid that can cause severe burns and skin blisters upon contact. It is classified as a chemical warfare agent and is particularly infamous for its devastating effects on the skin and respiratory system. This compound damages the DNA in cells, leading to a blistering reaction that can be delayed for hours after exposure. The symptoms may include painful skin blisters, respiratory challenges, and long-term health issues. While it is often portrayed as a gas, in its pure form, it is actually a liquid at room temperature and can produce a vapor that is harmful. This understanding underscores its historical use in warfare, causing significant injuries and casualties during conflicts, especially in World War I.