What are the physical characteristics of oxygen?

The physical characteristics of oxygen are indeed colorless, odorless, and tasteless. This means that oxygen cannot be seen, has no detectable smell, and does not have any flavor. These properties are crucial in understanding oxygen's behavior and how it interacts with other substances, especially in medical and therapeutic contexts. For instance, the absence of color and odor makes oxygen undetectable in its gaseous form, which is important for its safe handling and administration in medical settings.

In contrast, the other options describe characteristics that are not applicable to oxygen. For example, attributing an odor or taste to oxygen could lead to misconceptions about its safety and applications. Understanding these true physical properties helps ensure proper equipment and protocols are implemented for oxygen delivery and reduces the risk of errors in medical gas administration.