Final answer:
The most appropriate response when a lab wall is on fire due to a flame photometer malfunction is to rescue anyone in danger, pull the fire alarm, and evacuate the building while closing doors and windows.
Step-by-step explanation:
Appropriate Response to Laboratory Fire
When a flame photometer malfunctions and causes a lab wall to catch fire, the most appropriate response is c) Rescue anyone in danger, pull a fire alarm, close doors and windows as you evacuate. This approach emphasizes the importance of safety and seeks to alert others in the building while preventing the spread of the fire by closing doors and windows, which could reduce the oxygen supply to the fire. It's vital to have an evacuation plan in place, to stay calm, and to swiftly proceed to the nearest exit whilst ensuring that others are alerted to the danger. Do not attempt to extinguish a large fire yourself; that is a job for trained firefighters who are equipped to handle such situations safely.
Understanding the importance of fire safety is critical, especially in a laboratory setting where there are often flammable chemicals and heat sources. Always follow your teacher's or laboratory instructor's safety instructions closely and be aware of where fire safety equipment, like fire extinguishers and fire alarms, are located. In the event of a fire, never ignore fire alarms and never attempt heroics; the prime concern should be to clear the area to avoid injuries or worse outcomes.