Commodity Fumigation License Practice Exam

True or False: Finely ground products such as flour are more sorptive than whole grain.

1. True

2. False

3. Depends on the grain type

4. Not enough information

The correct answer is: True

Finely ground products like flour have a greater surface area compared to whole grain, which makes them more sorptive. This increased surface area allows finely ground materials to absorb moisture and potentially gases or vapors more effectively. In the context of fumigation, higher sorptivity can impact the behavior of fumigants, potentially leading to more effective penetration and distribution within the product. Whole grains, being larger and less processed, have reduced surface interaction with the environment, which contributes to lower sorptivity. Thus, the statement about finely ground products being more sorptive than whole grain is accurate.