WHMIS class F includes which of the following?

Class F under the Workplace Hazardous Materials Information System (WHMIS) specifically categorizes "Dangerously Reactive Materials." These materials have the potential to undergo dangerous reactions, often unexpectedly, which can lead to explosions, fires, or the release of harmful substances when they come into contact with other materials or conditions such as heat or moisture. The classification of these materials aims to enhance safety by ensuring that workers are informed of the specific hazards associated with them and can take appropriate precautions.

The other options represent different classes within WHMIS. Compressed gas falls under a different classification focused on hazards associated with gases under high pressure, while oxidizing materials, which can cause or enhance the combustion of other substances, belong to another designated class. Thus, understanding that Class F is solely concerned with dangerously reactive materials emphasizes the targeted nature of WHMIS classifications for effective hazard communication and workplace safety.