Understanding the Bunsen Burner

What are the main parts of a Bunsen burner?

• flame control knob

• fuel tank

• temperature gauge

• Base, gas inlet, barrel, air control valve, burner head

How do you safely light a Bunsen burner?

• Turn on the gas and leave it running for a few minutes before lighting.

• Use a lighter to ignite the gas before opening the tap.

• Light the burner with a match while the gas tap is fully open.

• To safely light a Bunsen burner, ensure the gas tap is closed, use a striker to ignite the gas after opening the tap slightly, and adjust the flame as needed.

What safety precautions should be taken when using a Bunsen burner?

• Using the Bunsen burner without any protective gear

• Leaving the burner on when not in use

• Safety precautions include working in a ventilated area, keeping flammable materials away, wearing safety goggles, tying back long hair, and not leaving the burner unattended.

• Placing flammable materials directly on the burner

What are the two main types of flames produced by a Bunsen burner?

• Luminous flame and non-luminous flame

• High-temperature flame and low-temperature flame

• Oxidizing flame and reducing flame

• Blue flame and red flame

What is a luminous flame and how is it characterized?

• A luminous flame is a dim flame characterized by a blue color due to complete combustion.

• A luminous flame is a flame that produces no light and is characterized by a cold temperature.

• A luminous flame is a bright flame characterized by incandescent particles, often yellow or orange, due to incomplete combustion.

• A luminous flame is a bright flame that is always green and indicates a high level of oxygen.

What is a non-luminous flame and how is it characterized?

• A non-luminous flame is a type of flame that produces smoke and is used for heating.

• A non-luminous flame is bright yellow and indicates incomplete combustion.

• A non-luminous flame is a flame that does not emit light and is characterized by a blue color, indicating complete combustion.

• A non-luminous flame emits a strong odor and is characterized by a red color.

Why is it important to adjust the air supply on a Bunsen burner?

• It is important to adjust the air supply to control the flame temperature and efficiency.

• To create a larger flame for better visibility.

• To prevent the burner from overheating.

• To increase the amount of gas used in the burner.

What color indicates a complete combustion in a Bunsen burner flame?

• Yellow

• Blue

• Green

• Red