Final answer:
The most appropriate response in case of a lab fire is to rescue anyone in danger, sound the fire alarm, and evacuate the building while closing doors and windows if possible, without risking safety. The correct answer is option: C. Rescue anyone in danger, pull a fire alarm, close doors and windows as you evacuate
Step-by-step explanation:
The appropriate response when a flame photometer malfunctions and causes the entire wall of the lab to catch fire is option C: Rescue anyone in danger, pull a fire alarm, close doors and windows as you evacuate. This is because the priority should always be safety and securing the well-being of anyone who might be in danger.
Promptly activating the fire alarm ensures that emergency services are alerted and that all building occupants are informed of the fire, allowing them to evacuate safely. While closing doors and windows can help prevent the spread of fire and smoke, it should only be done if it does not put anyone at further risk. Using a fire extinguisher should only be attempted for very small fires and if you have been trained to do so.
Firefighters are trained to search burning buildings to locate and rescue victims from such hazardous situations. They dress with specialized equipment like fire-resistant clothing and breathing apparatus to protect themselves as they assess and handle fires. Therefore, untrained individuals should not attempt to extinguish a large fire themselves.
Remember to always work in a well ventilated room, know how to handle flammable chemicals safely, and never leave open flames or heat sources unattended. In the event of a fire, these preventive measures can make a significant difference in the level of hazard faced.