Lab Safety Knowledge Assessment

What is the proper way to store a highly reactive chemical in the lab?

• In a plastic container on an open shelf

• In a designated, labeled cabinet with appropriate ventilation

• In a glass jar near the sink

• In a metal container under the fume hood

Which of the following is the most important step when handling concentrated acids?

• Pouring the acid quickly to minimize exposure

• Wearing gloves and goggles

• Using a pipette to transfer the acid

• Storing the acid in a refrigerator

When should a lab coat be worn in the laboratory?

• Only when working with chemicals

• At all times when in the lab

• Only during experiments involving heat

• Only when instructed by the teacher

What is the first step you should take if a chemical spill occurs on your skin?

• Wipe it off with a paper towel

• Rinse the affected area with water for at least 15 minutes

• Apply a neutralizing agent immediately

• Cover it with a bandage

Which piece of personal protective equipment is essential when working with volatile substances?

• Lab coat

• Safety goggles

• Ear plugs

• Steel-toed boots

What is the correct procedure for disposing of broken glassware in the lab?

• Throw it in the regular trash bin

• Place it in a designated glass disposal container

• Leave it on the lab bench for the janitor

• Wrap it in paper and throw it in the trash

How should you respond if you hear the fire alarm while working in the lab?

• Continue working until you finish your experiment

• Turn off all equipment and calmly exit the building

• Hide under the lab bench

• Call the fire department

What is the purpose of a fume hood in a laboratory?

• To store chemicals safely

• To provide a sterile environment

• To ventilate harmful fumes and vapors

• To keep the lab warm

Which of the following is a correct practice when using a Bunsen burner?

• Leaving it unattended while lit

• Checking for gas leaks before lighting

• Using it to heat flammable liquids

• Adjusting the flame with your hand

What should you do if you accidentally break a mercury thermometer in the lab?

• Sweep up the mercury with a broom

• Evacuate the area and inform the teacher immediately

• Wash the mercury down the sink

• Cover the mercury with paper towels