AEMCA Practice Exam

What is lewesite?

1. A concentrated form of mustard gas

2. A pesticide derivative

3. A common household chemical

4. A treatment for chemical exposure

The correct answer is: A concentrated form of mustard gas

Lewesite is a compound that falls under the category of chemical warfare agents, specifically classified as a type of blister agent. It is closely related to mustard gas in terms of its chemical properties and effects. When lewisite comes into contact with skin or mucous membranes, it can cause severe blistering, similar to that caused by mustard gas, hence the classification of lewesite as a concentrated form of mustard gas. This makes it particularly dangerous in warfare scenarios. The other options do not accurately describe lewesite: it is not a pesticide derivative, nor is it a common household chemical. Additionally, lewesite does not function as a treatment for chemical exposure; rather, it represents a hazardous chemical that can cause significant harm upon exposure. Understanding the characteristics and classification of lewesite is vital for recognizing its potential dangers and the historical context of its use in warfare.