Pesticides that readily move from liquid to gas are considered to be volatile.

Pesticides that readily move from liquid to gas are considered to be volatile.

• A. Corrosive
• B. Stable
• C. Soluble
• D. Volatile

Answer: (D)

Volatility is all about how easily a chemical becomes a gas. A pesticide that readily moves from liquid to gas has high vapor pressure at room temperature, so it is volatile. That means after application it can evaporate into the air and travel with air currents, potentially reaching non-target areas and posing inhalation or drift risks. Corrosive describes damage to materials or tissues, stable means it doesn’t break down easily, and soluble means it dissolves in water. None of these describe the tendency to vaporize, which is why they don’t explain why the pesticide would move from liquid to gas.

Volatility is all about how easily a chemical becomes a gas. A pesticide that readily moves from liquid to gas has high vapor pressure at room temperature, so it is volatile. That means after application it can evaporate into the air and travel with air currents, potentially reaching non-target areas and posing inhalation or drift risks.

Corrosive describes damage to materials or tissues, stable means it doesn’t break down easily, and soluble means it dissolves in water. None of these describe the tendency to vaporize, which is why they don’t explain why the pesticide would move from liquid to gas.