Using the Bunsen Burner

Before lighting a Bunsen burner, what critical personal safety step must be taken?

• Wear safety goggles

• Tie back long hair

• Remove all jewelry

• Put on closed-toe shoes

Answer explanation

Although each answer is an important part of lab safety, tying back long hair is often the most important as it can easily catch on fire with an open flame.

Which of the following is a crucial safety precaution to take before lighting a Bunsen burner?

• Ensure long hair is tied back and loose clothing is secured.

• Place flammable substances near the burner for quick access.

• Keep the gas tap slightly open to allow gas to flow.

• Wear only safety glasses, no lab coat needed.

Which of the following is NOT a main component of a Bunsen burner itself?

• Barrel

• Collar

• Air hole

• Igniter

Identify the parts of the Bunsen burner shown in the image.

a

b

c

d

e

Base

Gas hose

Flame

Air hole

Barrel

According to the video. what needs to be checked prior to turning on the gas to the bunsen burner? (Select all that apply.)

• Check that the tubing is properly connected to the gas supply.

• Check that the chemicals are put away.

• Check that the tubing is properly connected to the bunsen burner.

• Check that the fire extinguisher is near.

• Check that there is water readily available.

Place the following in the correct order for lighting a bunsen burner.

1) (a)  

2) ​ (b)  

3) ​ (c)  

4)​ (d)  

5) ​ (e)  

• close the air hole
• light match and turn on gas
• blow out match
• adjust flow of gas
• create non luminous flame by opening air hole

What type of flame is initially produced when a Bunsen burner is lit with the air hole closed?

• A pale blue flame

• A non-luminous flame

• An orange-yellow flame

• An invisible flame

How is a non-luminous (pale blue) flame achieved with a Bunsen burner?

• By decreasing the gas supply.

• By rotating the collar to close the air hole.

• By rotating the collar to open the air hole.

• By using a different type of gas.

What do you if the bunsen burner does not light?

• keep lighting matches until the bunsen burner lights

• ask your partner to try to light the bunsen burner

• tell the teacher that you cannot light the bunsen burner

• turn off the gas, wait for the gas to dissipate, and try again

How ready do you feel about using the bunsen burner during the lab?

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