Which of the following does NOT describe a feature of inorganic arsenicals?

Inorganic arsenicals are a type of wood preservative commonly used to protect wood from pests, decay, and other forms of degradation. The correct answer highlights a significant characteristic of inorganic arsenicals in terms of their physical properties.

Inorganic arsenicals are known for their stability and low volatility, which means they do not easily evaporate into the air when applied. This is important because it minimizes exposure to vapors that could be harmful to humans and the environment. Therefore, the statement that they are "highly volatile when applied" is not an accurate description of their properties.

On the other hand, these compounds produce no smell or vapor, making them suitable for certain applications without concerns about odors. They are also effective against a range of pests due to their toxic properties, and they can be used effectively indoors in controlled applications.

Understanding the nature of inorganic arsenicals, specifically their low volatility, helps in assessing their safety and environmental impact, as well as their effectiveness in wood preservation practices.