When the combustion of methane gas will take place when the flame is yellow
There can also be other possibility.
The student can adjust the Bunsen burner by opening the slits for air at the bottom region.
What is a Bunsen burner?
Bunsen burner refers to a gas burner which provides source of heat in the laboratory.
All bunsen burners have slits located at the bottom which are controlled with the aid of a knob. Fuel burns in insufficient air to give out luminous yellow flame . The slit is adjusted to allow more air so as to produce luminous blue flame.
Therefore, the yellow flame of bunsen burner will indicate either the combustion of hydrogen gas or the leakage.
Read more about Bunsen burner here: brainly.com/question/743920
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