Question

Air holes of a gas burner have to be adjusted when the heated vessels get blackened by

the flame. Give reason​

Answer 1

Answer:

The blackening of the vessels indicate sooty flame due to incomplete combustion of the fuel . Air (oxygen )is necessary for complete combustion. The air holes of the gas burner provide air for combustion and they have to be adjusted so that a blue and non-sooty flame is produced

Explanation:

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Answer 2

Explanation:

The blackening of the vessels indicate sooty flame due to incomplete combustion of the fuel . Air (oxygen )is necessary for complete combustion. The air holes of the gas burner provide air for combustion and they have to be adjusted so that a blue and non-sooty flame is produced.

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