The Bunsen burner is a heating apparatus used to heat samples in the laboratory. The correct answer is option B: )Leave the gas stop open for a few minutes before lighting to clear the line.
A Bunsen burner is commonly used as a heating apparatus. It contains a gas that can be controlled using a gas regulator.
It is necessary to do the following before lighting the Bunsen burner;
- Make sure there are no holes in the hose connected to the burner.
- Clear the burner area of flammable materials such as solvents and papers.
- Check that the gas regulator and air inlet on the burner can be adjusted.
So, it is not necessary to Leave the gas stop open for a few minutes before lighting to clear the line before lighting a Bunsen burner.
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