pratical class 11 draw out a glass jet
Answers
Answer:
Working of Bunsen Burner
Materials Required

Real Lab Procedure
Connect the gas-inlet of the bunsen burner to the gas tap through a rubber tube.
Turn on the Bunsen burner and light it using a spark lighter.
Ensure the air holes at the bottom of the burner are completely opened.
The gas will mix with more air and the flame will burn much hotter producing a blue flame called the non-luminous flame.
Close the air hole by rotating the air adjusting disc.
Now the gas will only mix with ambient air and this reduced mixing produces an incomplete reaction producing a cooler, but brighter, luminous yellow flame.
Precautions
Remove all the flammable and combustible material from the lab bench or work area when the Bunsen burner is to be used.
Tie-back long hair, dangling jewelry, or loose clothing.
Replace all hoses found to have defect before using.
Use a spark lighter with extended nozzle to ignite the burner.
Adjust the flame by turning the air adjusting disc to regulate air flow and to produce an appropriate flame for the experiment.
Do not leave open flames unattended and never leave the laboratory while the burner is on.
Shut off gas when its use is complete and ensure that the main gas valve is off before leaving the lab.
